Radioactivity { What is radioactivity? Atoms that have too few or too many neutrons than a stable atom can be radioactive. Muutke teksti laade Alpha particles may be completely stopped by a Teine tase sheet of paper Kolmas tase Beta particles by aluminum shielding Neljas tase Gamma rays can only be reduced by much more Viies tase substantial mass, such as a very thick layer of lead. Discovery In 1896 Henri Becquerel was trying to get naturally fluorescent materials to produce xrays b...
Are mistakes necessary for discovery and progress? It is often questioned whether making mistakes help people to progress and make discoveries. I personally think that there is no need to make mistakes in order to develop themselves, but it is often an efficient way of finding out something new which can help people to make progress on whatever that is worked on. It is often the mistake that tell us what is wrong or what needs to be corrected. Through correcting any mistakes that are made and learning from those errors, deffinitely help to make progress. Homework that teachers give to students are a good example, like submitting something to your teacher and getting it back later with corrections. By carefully analyzing the mistakes made in the work, many important discoveries which might be ignored before would be noticed that can later help to progress in something. What can also be brought up as a good example is analyzing...
Australia Fact file: Australia comprises a land area of 7 686 850 square kilometres. Its population is about 21,3 million people. Australia's capital is Canberra. The national language is English. The official name of it is the Commonwealth of Australia. It's divided into six states and two territories: New South Wales, Queensland, South Australia, Western Australia, Tasmania, Victoria, Australian Capital Territory (ACT) and Northern Territory. Symbols: Australia had the British flag as their official flag until 1901, when the Commonwealth of Australia was formed. Over 30 000 entries attracted the official competition. Five of them, which contained almost identical designs, were placed equally first. The Australian flag symbolises Australia's historical links with Britain, because it has British flag on it, and Australia's location in the southern hemisphere...
Arvestatud 92 p. Kontrolltöö Salvestada antud tööraamat nimega EXCEL_КТ_Pere Töö on arvestatud, kui on kog Kasutada nimesid seal, kus on võimalik (enamikus ju Iga ülesande "hind" on teatud punktide arv. Miinimum saamiseks - 61. t nimega EXCEL_КТ_Perekonnanimi atud, kui on kogutud vähemalt 61 punkt on võimalik (enamikus juhtudest). ud punktide arv. Miinimum punktide arv arvestuse a b n h y-funktsiooni väärtuste keskmine -5 5 24 0.416667 y-funktsiooni negatiivsete väärtuste arv y-funktsiooni minimaalne väärtus x y -5 -14.44764 -4.583333 -13.73471 -4.166667 -13.12517 -3.75 -12.69287 -3.333333 -12.60398 Y(x) graafik -2.916667 -13.32678 ...
Tiitelleht Õppeasutus Aine Töö Teostaja: Matrikli nr Rühm Kuupäev Page 1 Tiitelleht Tallinna Tehnikaülikool Informaatika II 14.3.14 Page 2 Leida pühade kuupäevad ja nende nädalapäevad; pühade arv kuude ja nädalapäevade kaupa. Valemid peavad kehtima suvalise aastaarvuga. Pühad aastal 2017 Püha Kuu # Päeva #Kuupäev antud aasNädalapäeva # Kuu # uus aasta 1 1 1.01.2017 7 1 vabariigi aastapäev 2 24 24.02.2017 5 2 kevadpüha 5 1 1.05.2017 1 3 võidupüha 6 23 23.06.2017 5 4 jaanipäev 6 24 24.06.2017 6 5 taasises...
It is only knowledge produced with difficulty that we truly value. To what extent do you agree with this statement? Session: May 2017 Word count: 1212 It is only knowledge produced with difficulty that we truly value. To what extent do you agree with this statement? To be knowledgeable is to have an understanding about how things are and how things work. Knowledge is the combination of facts, information, and/or skills that when put together create a whole picture enabling us to fully understand a subject or situation. We, as ordinary people, can acquire knowledge either from our first hand experiences (personal knowledge) or from education and research (shared knowledge). Difficulty depends on how much effort or skill must be implemented for the information to be acquired, and the value of something lies in it's importa...
Neptune Agnes Leppik & Hanna Laura Sepp 10.b Neptune Neptune is the eight and the farthest planet from the Sun. It is the fourth-largest planet by diameter and the third-largest by mass. Neptune is 17 times the mass on the Earth. Named after the Roman god of the sea, its astronomical symbol is , a stylised version of the god Neptune's trident. A size comparison of Neptune and Earth Muutke teksti laade Teine tase Kolmas tase Neljas tase Viies tase Discovery Neptune was the first planet found by mathematical prediction. In the wake of the discovery, there was much Muutke teksti laade nationalistic rivalry between Teine tase Kolmas tase the French and the British Neljas tase over who...
ERINEVAD VAHEKASTID AUTODEL Valgamaa Kutseõppekeskus AT-14 Andri Põldsepp Vahekast IRD Freelander I Vahekast (Intermediate Reduction Drive Assembly) Land Rover Freelander 1 autodele Vahekast Borg Warner-NV225 RR P38 Vahekast Land Rover Range Rover P38 autodele R380 , ZF4HP24 või ZFH4HP22 käigukaste. Vahekast LT230 Vahekast Land Rover Defender, Discovery I, Discovery II, Range Rover Classic autodele, mis kasutvad LT77, LT85, R380, GFT MT 82 , ZFH4HP22 või ZF4HP24 käigukaste. Vahekastid on erinevate ülekandervudega! Sõltuval autot mudelist koos või ilma keskdiferentsiaali ...
1936 - Victor Francis Hess ja Carl David Anderson Koostas: Rain Berezin 12a Kosmiline kiirgus Selgitades tuumafüüsika ja osakeste füüsika uurimist, ei tohi unustada, millist rolli on mänginud kosmiline kiirgus. Kosmiline kiirgus oli 1930. aastate algul ainus kõrge energiaga osakeste allikas ning ainus vahend avastamaks ,,uusi" osakesi nagu positron (elektroni antiosake). Esimest korda õnnestus positron tuvastada 1932. aastal Carl Andersonil, kes oli kosmilise kiirguse spetsialist. 19. sajandi lõpul, füüsikud, kes vajasid elektriliselt neutraalset gaasi oma mateeriastruktuuri katsetusteks, panid tähele, et sellist gaasi on võimatu saada väljaspool ionisatsiooni allikat. Sellist fenomeni on üpris lihtne korrata väga traditsionaalselt kulla lehe ning elektroskoobiga. Korrektne tõlgendus sellele oleks, et Maa pind võtab pidevalt vastu laetud osakeste voolu. Algselt usuti,...
NXT Mindstorm Marek Viirok Jalmar Tõnsau Mindstormide suguvõsa RCX (Robotic Command eXplorer)Esimese generatsiooni Lego Mindstorms. RDS (Robotics Discovery Set) Teise generatsiooni Lego Mindstorms Droid Developer Kit & Dark Side Developer Kit NXT Lego Mindstorms 1.0 ja 2.0 EV3 RCX (Robotic Command eXplorer) RDS (Robotics Discovery Set) EV3 NXT Ajalugu ja päritolu 2006 aasta Juulis esitleti NXT Mindstorms 1.0 2009 aasta August esitleti NXT Mindstorms 2.0 Brick ehk NXT juhtplokk NXT juhtplokk (Intelligent Brick) on RCX juhtploki järglane, sellest tuleneb ka nimi NXT ehk NEXT (järgmine) Atmel32bitine ARM7 protsessor Atmel 8bitine AVR protsessor ATmega48 256 kB välkmälu ja 64kB muutmälu USB 2.0 Bluetooth 2.0 4 Sisendporti 3 Väljundporti ...
Vitamiinide ajalugu ja klassifikatsioon Jekaterina Miloserdova Sisukord Vitamiinid meie elus Definitsioon Erinevus provitamiinide, vitameride ja vitamiinide vahel. Vitamiinide ajalugu ja nende avamine Klassifikatsioon Vitamiinid toidulisaainete registris Allikad Vitamiinid meie elus Täna on termin ,,vitamiin" levinud sõna igapäevases elus. Väikelapsed mõtlevad magustest närimistablettidest, mis peituvad toreda kujuga purgikestes, naised usuvad vitamiinide kaljukindlasse abisse välimuse säilitamisel, keskealised peavad silmas haigestumist ja vananemist ennetavaid vitamiinikuure. Mis meie jaoks on igapäevane, oli 20. sajandi alguses teadlastele revolutsioon! See oli üks tähtsamaid avastusi 20. sajandil. Vitamiinid... ... on orgaaniline ühend, mis erineb rasvadest, süsivesikutest ja valkudest. ... on loomulik osa toidust, aga väga väikestes kogustes. ... väike kogus on väga oluline inimeste e...
Aatomi ehitus Koostaja: Helen Kaljurand Tallinna Kristiine Gümnaasium Avaldatud Creative Commonsi litsentsi ,,Autorile viitamine + jagamine samadel tingimustel 3.0 Eesti (CC BY-SA 3.0)" alusel, vt http://creativecommons.org/licenses/by-sa/3.0/ee/ Sisukord Planetaarne aatomimudel Aatomi ehitus (Tabel) Aatomi ehitus (Video) Aatomi tuum Massiarvu leidmise valem Tuumalaengu leidmine perioodilisustabalist Isotoobid animatsiooni vaatamiseks on vajalik internetiühendus! Vesiniku isotoobid Sisukord 2 Elektronkate Elektronide arv elektronkihtidel Elektronide paiknemine Aatomi ehituse õppemudel Video aatomi ehitusest vaatamiseks on vajalik internetiühendus! Seotud lingid Kasutatud allikad Planetaarne aatomimudel - TUUM + + NEUTRON P...
James Cook Jane Grandberg Elina Ild John Kuusk Elulugu James Cook sündis 27. oktoobril 1728 Inglismaal Martonis Yorki linna lähedal Oli Briti meresõitja, kartograaf ja maadeavastaja Lapsepõlve veetis ta maapoisina ning ta pere oli suhteliselt vaene Ta õppis paljudes erinevates koolides, sest ta pere vahetas tihti elukohti Jamesi isa tahtis, et poisist saaks kaupmees ning saatis ta ühe kaupmehe juurde õpipoisiks. Pärast 18 kuud põgenes ta sealt 18-aastaselt sai tööd laevafirmas, olles õpipoisiks laeval Freelove. Väidetavalt oli see ta esimene merereis 1755. aastal astus Kuninglikku Mereväkke ning sai seal 4 aastaga kapteniks Cook osales aastail 1754-1763 Seitsmeaastases sõjas, mille inglased võitsid Tegeles ka astronoomiaga Tuntus põhineb kolmel ümbermaailmareisil, mille ta sooritas aastatel 1768-1779 Ümbermaailmareisid Esimene ümbermaailmareis toimus 25. augustil 1768 aastal, mille pardal oli 94 meeskonnaliiget ja teadlast. Teine re...
Mathematica Margus Martsepp Estonia named first computer- based math education country (11.2.2013) In our first Estonia project we will work with them to rewrite key years of school probability and statistics from scratch. -- Conrad Wolfram Predictive interface Linguistic input suggestions Unit discovery, conversion and problem solving Visualisation and graphics composition is really simple Fundamental limitation of all numerical systems Blind numerical sampling - black box Too complex for others 14th order linear differential system automatically solved Example problem Process diffusion-related experimental data to find the Matano interface and create an ascending diffusion on a ternary plot Example problem Example problem Example problem Example problem Example problem Final result: Line count ratio The end
James Cook Maarjo Põder 10A James Cook isiklikult 7 November 1728 14 e juhtslaidi teksti laadide redigeerimiseks Feebruar 1779 ase Kolmas tase Neljas tase Viies tase Elukäik James Cook sündis 27. oktoobril 1728 Inglismaal Martonis Yorki linna lähedal Oli Briti meresõitja, kartograaf ja maadeavastaja Lapsepõlve veetis ta maapoisina ning ta pere oli suhteliselt vaene Ta õppis paljudes erinevates koolides, sest ta pere vahetas tihti elukohti Jamesi isa tahtis, et poisist saaks kaupmees ning saatis ta ühe kaupmehe juurde õpipoisiks. Pärast 18 kuud põgenes ta sealt 18-aastaselt sai tööd laevafirmas, olles õpipoisiks laeval Freelove. Väidetavalt oli see ta esimene merereis 1755. aastal astus Kuninglikku Mereväkke ning sai seal 4 aastaga kapteniks Cook osales aastail 1754-1763 Seitsmeaastases s...
Brooklyn Bridge · Carries: motor vehicles (cars only), elevated trains (until 1944), streetcars (until 1950), pedestrians and bicycles · Crosses: East River · Designer: John Augustus Roebling · Opened: May 24, 1883 · Total length: 1825 m · Architectural style: Gothic · Connects Manhattan and Brooklyn · Longest suspension bridge in the world until 1903 · The first steelwire suspension bridge · On the first day, 1800 vehicles and 150 300 people crossed Brooklyn Bridge · Emily Warren Roebling was the first to cross the bridge · The towers are built of limestone, granite and Rosendale cement Notable events · First jumper: Robert E. Odlum on May 19, 1885 · First bungee jump: Thierry Devaux on June 1993 (illegally) · On March 1, 1994, Brooklyn Bridge shooting · The 2003 plot · In 2006, a Cold War bunker discovery It has been shown in films such as... ·...
England is a country that is part of the United Kingdom.It shares land borders with Scotland to the north and Wales to the west; the Irish sea is to the north west, theCeltic sea to the south west and the North Sea to the east, with the English Channel to the south separating it from continental Europe. The mainland of England consists of the central and southern part of the island of Great Britain in the North Atlantic but England also includes over 100 small isl such as the Isles of Scilly and the Isles of weight.The area now called England has been settled by people of various cultures for about 35,000 years, but it takes its name from the Angles, one of the Germanic tribes who settled during the 5th and 6th centuries. England became a unified state in AD 927, and since the Age of Discovery, which began during the 15th century, has had a significant cultural and legal impact on the wider world. The Kingdom of Englan which after 1284 ...
The Renaissance 1500 1650: background 1. What does the word ,,renaissance mean? Characterize briefly the period called the Renaissance. "The rebirth" from French Renaissance, meaning "rebirth"; Italian: Rinascimento, from re- "again" and nascere "be born") Rebirth of scholarship based on classical learning and philosophy. The Renaissance was a cultural movement that spanned roughly the 14th to the 17th century, beginning in Italy in the late Middle Ages and later spreading to the rest of Europe. It encompassed a revival of learning based on classical sources, the development of linear perspective in painting, and gradual but widespread educational reform. (wikipedia)Bridge between Medieval Ages and Modern Era. 2. Where did the Renaissance start and why? In the opening years of the 14th century, there began to develop in Italy and increasing interest in the manuscripts that had surviv...
Kirill Žukov AA-16 Võõrsõnad 1.enormne- määratu suur Osaleda soovis enormne hulk kunstnikke. 2.massiivne – raske Massiivne propaganda kutsub sööma Eesti toitu. 3.raporteerima – teadeannet tegema. Akt reguleerib tehingute raporteerimist. 4.simuleerima – teesklema,matkima Venemaa simuleerib lendu Marsile. 5.defekt – viga Kohvimasin oli väikese defektiga. 6.manipuleerima – käsitsema Ma ei poolda suuri manipulatsioone,aga ebameeldiva vistriku eemaldan küll. 7.piloteerima – piloodina juhtima Testid piloteeriti ja valideeriti. 8.kommunikeerima – edastama Juht peab muutusi töötajatele kommunikeerima. 9.tolereerima-sallima Riigid tolereerivad pahemäärmuslikke terroriste. 10.valideerima- kinnitama ...
Telekommunikatsioon ja meedia Sissejuhatus Küsitlesime 42. inimest Jaotasime inimesed 4 vanuserühma: 16-20, 21-40, 41- 55, 56- 70 Küsisime erinevaid küsimusi erinevatest meedia valdkondadest Eesmärgid Reklaami tähtsus inimestele Raadiojaamade kuulatus Ajalehtede ja ajakirjade loetavus Telezanrite vaadatus Meedia roll elus 16-20 vanuserühm Reklaam on vajalik Lühike, konkreetne ja humoorikas reklaam Vähem kollast ajakirjandust, rohkem meelelahutust Meedia mängib suurt rolli 21-40 vanuserühm Reklaami tähtsus ei ole suur Tabav ja arusaadav reklaam Vähem rämpsu (vanad uudised, reklaame) Meedia tähtsus keskmine 41-55 vanuserühm Ei lase mõjutada reklaamist Tutvustav ja mitte pealetükkiv reklaam Soovivad näha rohkem erapooletust ja sügavamat analüüsi Meedia vajadus on igapäevane 56-70 vanuserühm Reklaami mõjutavus väga väike Vaimukas ja kunstiline reklaam Tahavad näha rohkem lisalehti ajalehtede ja ajakirjade v...
California state State animal-The California grizzly bear was designated official State Animal in 1953. State nickname-"The Golden State" has long been a popular designation for California and was made the official State Nickname in 1968. It is particularly appropriate since California's modern development can be traced back to the discovery of gold in 1848 and fields of golden poppies can be seen each spring throughout the state. State song-California's official state song is "I Love You, California", written by F.B. Silverwood, a Los Angeles merchant. Total direct travel spending in California was $96.7 billion in 2007. Travel spending increased by 3.6 percent over the preceding year. Of California's approximately 14 million international visitors, about 5.2 million were from overseas in 2007, 21.7 percent of all overseas visitors to the U.S., and up 12.4 percent from 2006. Indi...
Traffic congestion droughtpõud floodüleujutus conjure up esile kutsuma, välja meelistama(creat in the mind) mimic miimika(imitate) fool narr, loll deadline tähtaeg(time limit) feud vaen, võitlus hype meediakära camp laager, leer(groups) pull off teoks tegema(achived) evocative esilekutsuv batty oger hang over kohal rippuma regarded kõrvale jäetud proof tõend bitter verine, kibe heap kuhi pile riit mainstream põhivool technological advances tehnilised arengud unemployment space junk consumer society fast food urban sprawl impersonal service GM food biological weapons stressful lifestyle extreme weather changes nuclear power immers süübima, asja sees olema outletshop outcomeresult outlookfuture outingexcursion outsetbeginning outrageanger outbreakepidemic outlaycosts outdistance kaugele maha jätma outdo ületama outsmart ülekavaldama outrun kiiremini, kaugemale jooksma Outgrow välja kasvama outsell space station scientific journal exper...
KIRJANDUS MEIE ELUS Kui me mõtleme kirjandusele, tulevad meil ilmselt kohe silme ette raamatud, kuid kirjandus on tegelikult palju enam kui raamatud. Missugusena esineb kirjanduse roll meie elus? Iga päev saan ma infot ajalehtedest ning ajakirjadest. Kogu aeg saan ma teada midagi uut ja põnevat kõigest, mis maailmas toimunud on või alles hakkab toimuma. Ajakirjadest meeldivad mulle kõige rohkem meelelahutus ajakirjad, näiteks ajakirjast Kerrang saan ma teada infot enda lemmikbändide kohta. On olemas ka mõned teaduslikud ajakirjad, mida ma ei loe sugugi tihti, näiteks ajakirjast Discovery leian palju huvitavaid fakte uutest tehnoloogiatest ning leiutistest. Üha rohkem on hakatud kirjandust panema kirja elektrooniliselt. See tähendab, et tulevikus võidaksegi üle minna sellele, et enam kirjandust kirjalikult ei märgita. Kui peaks juhtuma mingi õnnetus, kus kogu süsteem kokku variseb, siis ei...
Kallid kuulajad! Täna räägin ma teile laiskloomadest. Laiskloomad... Kui palju teate teie laiskloomadest? Kes nad on? Kuidas nad elavad? Kas nad teevad peale magamise midagi muud ka? Kui aus olla siis väga ei tee. Just sellepärast on laiskloomad minu lemmikud. Kui paljud meist sooviksid praegu kodus omas voodis magada? Jah, ma usun, et enamus meist. Laiskloomad magavad ööpäevas keskmiselt 15 kuni 18 tundi. Kõlab nagu unistus, eks? Laiskloomad elavad nii terve oma elu ja nad võivad elada kuni 40 aastat, kuigi keskmiselt elavad nad siiski vaid 20-30 aastat. Laiskloomad on erilised. Mida tähendab eriline? Näiteks kasvab laiskloomade karv kõhult seljale, sest enamuse oma elust veedavad laiskloomad selg alaspidi ja sellise karvakasvuga voolab vesi kergemini maha ning karv kuivab kiiremini. Elust selg alaspidi tuleneb ka see, et laiskloomade siseelundid on teistpidi kui teistel loomadel. Päris veider, eks? Laiskloomad on ühed maailma kõige ae...
VULKAAN VESUUV JA POMPEII Julia Pärn 4a 31.01.2013 Juhendasid ema ja isa Vulkaanid tekivad kohtadesse, kus maakoore tükid põrkuvad või rebenevad, nagu Itaalia Aafrika ja Euraasia mandri kohtumisel, kus asub Vesuuv. Vesuuvi purse 24. augustil 74. aastal mattis enda alla Pompeii linna. See on Euroopa ajaloo suurim vulkaani katastroof. Pompeii Rooma Impeeriumi tähtsamaid ja rikkamaid linnu. 12 000 elanikku. Kaubeldi mereandide, villa, oliiviõli, veini ja teiste kohalike saadustega. Väljaarendatud tänavavõrk, kaunid majad, mille seinu katsid fresko maalid, aedu kaunistasid skulptuurid ja purskaevud. Veevärk ja kanalisatsioon. 24 august 74 aasta üks tavaline päev Inimesed ei teadnud, et Vesuuv on vulkaan ega osanud seda karta. Plinius Noorem, kaasaegne pealtnägija Mägi rebenes lõhki ja sellest sööstis välja ...
Kirjanduse roll minu elus Kirjanduse laia mõistet mõistab igaüks erinevalt. Üks nimetab kirjanduseks ajalehti mida ta igapäevaselt loeb, teine aga nimetab kirjanduseks raamatuid, kuid kõik see on vaid kirjanduse üks väike osa. Luuletusted, ajalehed, ajakirjad, raamatud kogu kirjandus mängib meie elus suurt rolli. Igapäevaselt saan ma infot ajalehtedest ning ajakirjadest. Koguaeg saan ma teada midagi uut ja põnevat kõigest ,mis maailmas toimunud on või alles hakkab toimuma. Ajakirjadest meeldivad mulle kõige rohkem meelelahutus ajakirjad, näiteks ajakirjast Autoleht saan ma teada väga palju huvitavat informatsiooni autodest. On olemas ka mõned teaduslikud ajalehed mida ma ei loe sugugi tihti, näiteks ajakirjast Discovery leian palju huvitavaid fakte uutest tehnoloogiatest ning uutest leiutistest. Minu laua peal vedeleb alati mõni värske ajakiri või ajaleht. Kirjanduse suurim osa raamatud, män...
Mis on tuumaenergia ja kus seda kasutatakse? Tuumafüüsika kui teadusharu sündis aastal 1896. Kui Prantsuse teadlane Henri Becquereli avastas juhuslikult radioaktiivsuse. Seda veidi üle sajandi vanust avastust on rakendatud väga erinevates valdkondades- tuumaenergia rakendusi on ära kasutatud sõjatööstuses, praktiliselt võimatu on kujutada tänapäevast elu ette ilma selle rakendusteta arstiteaduses või energiatootmises. Kuigi tuumaenergeetika, erineb palju,teistest energia saamis viisidest, loetakse seda säästvaks, sest eneriga tootmise protsessil ei eraldu CO2. Kuid tuumajaamaga, tekib oht, radioaktiivsele saastele, mis võib olla korduvalt kahjulikum kui CO2, eriti kui seda eraldub õhku ja muutub pilveks. Nagu, eespool mainitud kasutatakse, tuumaenergiat põhiliselt eneriga tootmiseks, sõjatööstuses ja meditsiinis, kuid lisaks sellele kasutatakse veel tuumaenergiat t...
To: Ms Maire Liidlein From: Kerli Neljas Date: 16th December Subject: Recommendation report about Haapsalu Introduction Haapsalu is a small, friendly and romantic town is a real summer paradise and in summer a lot of holidaymakers visit this. They come for the warm seawater, curative mud, peacefulness. A lot of people visit the resort every summer, there are many different ways to spent time there, both for tourists and locals. Old Town of Haapsalu and museums People who are interested in culture and history can visit the Old Town and museums. For example the Estonian Railway Museum, the Episcopal Castle Museum, the Läänemaa Museum and others. I think that the city itself is one of the greatest historical places. Nobody can talk about the history of Haapsalu better than the city itself. And visiting museums is a good for acquiring new knowledge, but those people who do not love history, may get bored. And all museums are located relativ...
Hubble'i teleskoop Hubble'i kosmoseteleskoop on endale astronoom Edwin Hubble'i järgi nime saanud teleskoop, mis tiirleb ümber maakera. Edwin Powell Hubble (18891953) oli ameerika astronoom, Rahvusliku Teaduste Akadeemia liige ja Galaktikavälise astronoomia rajaja. 1920 aastatel tegi ta kaasaegse astronoomia tähtsaimad avastused. Enne Hubble'i avastusi uskus suurem osa astronoome, et Linnutee moodustabki kogu Universumi. 1924. aastal leidis Hubble aga esimesi tõendusi selle kohta, et väljaspool meie galaktikat on olemas veel teisedki galaktikad. Kõige tähtsama avastuse tegi Hubble aga 1929. aastal. Galaktikaid uurides ja liigitades ning nende kiirgusspektreid mõõtes märkas Hubble, et mida kaugemal galaktika maakerast asub, seda kiiremini ta meist eemaldub. Järelikult pidi kogu Universum olema mingil hetkel koos ühes punktis, plahvatama ning sestsaadik alates muudkui pai...
Egüptoloogid tegid sajandi leiu Egüptoloogid teatasid, et nad on identifitseerinud Egiptuse kõige kuulsama naissoost vaarao, Hatsepsuti, 3000 aastat vana muumia. Egiptuse antiikvarade ülem Zahi HAwass tegi ametliku teate uudistekonverentsil Kairos. See on Egiptuse suurim arheoloogiline leid pärast 1922. a. Tutanhamoni haua avastamist. Arheoloogid loodavad, et muumia, mis on lebanud aastakümneid puutumatuna, annab vihjeid tema surma ja sellele järgnenud kadumise kohta. Hawass on seadnud muuseumi lähistele üles DNA laboratooriumi, kus töötab rahvusvaheline teadlaste rühm. Uurimist rahastab USA telekanal Discovery, mis edastab teemakohase dokumentaalfilmi oma eetris juulis. Üheks tähtsaks tunnuseks olevat muumialt puuduv hammas. Hamba asemel laiutavasse auku sobib täpselt üks olemasolev reliikvia -- hammas millele on graveeritud Hatsepsuti nimi. Hatsepsut oli tähtis 18. dünastia valitseja, kes elas 15. sajandil enne Kris...
KUUBA KRIIS Kuuba kriis ehk kariibi kriis ning kuubal isegi oktoobrikriis 1962. aasta oktoobris kujunenud vastasseis ühelt poolt Nõukogude Liidu ja Kuuba ning teiselt poolt Ameerika Ühendriikide vahel http://www.ctvnews.ca/polopoly_fs/1.1002876!/httpImage/image.jpeg_gen/derivatives/landscape_960/image.jpeg Kuuba kriisi Septembris 1962 püüdis USA edutult kukutada Fidel Castro valitsust Kuubal Kuuba ja Nõukogude Liit asusid kiiruga rajama Kuubale baase tuumarakettide tarbeks, mille lennuulatusse jäänuks suurem osa USA mandriosast 15. oktoobril 1962 pildistas USA lennuväe luurelennuk U-2 Kuubal ehitatavaid Nõukogude Liidu raketibaase President Kennedy Teavitamas avalikkust kuuba kriisist 22. oktoobril 1962. http://www.history.com/news/wp-content/uploads/2012/10/kennedy-blockade-order.jpg USA lennuväe luurelennuki U-2 tehtud pilt kuubal http://www.history.c...
Aatomi ehitus Koostaja: Helen Kaljurand Tallinna Kristiine Gümnaasium Avaldatud Creative Commonsi litsentsi ,,Autorile viitamine + jagamine samadel tingimustel 3.0 Eesti (CC BY-SA 3.0)" alusel, vt http://creativecommons.org/licenses/by-sa/3.0/ee/ Sisukord · Planetaarne aatomimudel · Aatomi ehitus (Tabel) · Aatomi ehitus (Video) · Aatomi tuum · Massiarvu leidmise valem · Tuumalaengu leidmine perioodilisustabalist · Isotoobid animatsiooni vaatamiseks on vajalik internetiühendus! · Vesiniku isotoobid Sisukord 2 · Elektronkate · Elektronide arv elektronkihtidel · Elektronide paiknemine · Aatomi ehituse õppemudel · Video aatomi ehitusest vaatamiseks on vajalik internetiühendus! · Seotud lingid · Kasutatud allikad Planetaarne aatomimudel - TUUM + + NEUTRON PROOTON ELEKTRONKATE - ...
Invention of Airplanes Mailis Zirk 2012 The discovery of the airplane brought along development in the transport system. The speed of an airplane is so high that it does not take long to reach any place throughout the Click world. to edit Master text styles Second level Third level Fourth level Fifth level Slowly and gradually, emergencies are becoming easier to handle after the invention of airplane. Click to edit Master text styles The involvement of Second level airplanes in the defense Third level Fourth level area has now become ...
NEON Symbol: Ne Atomic number: 10 Date of Discovery: 1898 Discoverer: Sir William Ramsay Name Origin: Form the Greek word neos (new) Uses: lighting Obtained From: liquid air Respected teacher, classmates today I am going to speak about a chemical element neon. it will take me about 2-3 minutes. I am going to talk about Neon's history extraction physical properties chemical properties uses health effect Neon is the chemical element that has the symbol Ne and atomic number 10. Neon was discovered in 1898 by British chemists William Ramsay (1852-1916) and Morris Travers (1872-1961). It occurs naturally in the atmosphere, but only in very small amounts. Extraction Neon can be obtained from air by fractional distillation(murdosaline destilatsioon). The first step in fractional distillation of air is to change a container of air to a liquid. The liquid air is then allowed to warm up. As the air warms, each element in air changes...
The Cuban Missile Crisis Vanessa Viira, Agris Janisk, Nikita Mikson 10 d Backround of Cuba Fidel Castro established Communist government in 1959 Took over the bussinesses of the US Castro was attempted to be overthrowed, April 1961, inavsion of Bay of Pigs Missile sites were built in Cuba in summer 1962 The USSRs sent a shipment full of military equipment in autumn 1962 Why was the USSR interested in helping Cuba? A Communist state A good launch base for the USSR Nikita Khrushchev wanted to test the strenght of John F. Kennedy and force him to bargain over the US missile in Europe What happened? Photos of missile sites on Cuba were taken by spy planes, October 14, 1962 Photos revealed to the Us the day after President Kennedy formed the EXCOMM (Executive Committee of the National Security Council) Possible courses of action 1)Do nothing 2)Diplomacy 3)Warning 4)Blockade 5)Air strike 6)Invasion The responses were considered and...
The Republic of South Africa History The Republic of South Africa is a country located at the southern tip of Africa, with a 2,798 kilometres coastline on the Atlantic and Indian Oceans. Modern humans have inhabited Southern Africa for more than 100,000 years. In 1652 the Dutch East India Company founded a refreshment station at what would become Cape Town. The discovery of diamonds and later gold triggered the conflict known as the Anglo-Boer War, as the Boers and the British fought for the control of the South African mineral wealth. Although the Boers were defeated, the British gave limited independence to South Africa in 1910 as a British dominion. South Africa contains some of the oldest archaeological sites in the world. Flag I flag After the Anglo-Boer War the English people desided to make British Union Flag a national flag of South Africa II flag The second flag was designed in 31 May 1928, becau...
Nowadays all people use any kinds of different media channels. To take into consideration that most people have all kinds of media devices which they use everyday. For example, general media channels are television, radio, the Internet and newsapers. They differ from eachother. That's why media channels have many advantages and disadvantages. To begin with, media devices have lots of advantages. Most people have TVs. Television is quite popular because people can get easy overview from news. Television also entertains and educates people. There are lots of different channels that forward live picture. For example, CNN, BBC, National Geographic, Discovery Channel, Eurosport. Moreover, radio has its own advantages which others doesn't have. People mostly listen radio in car and work station. Radio is convenient because people get short news and it is entertaining. Also, radio can be listened via mobile or MP3 player. In addition, the Int...
1. What does the word “philosophy” mean? The study of proper behaviour and the search for wisdom, in greek means love for wisdom 2. Is philosophy a science? Why? What kind of science it is? Yes it is. It tries to understand the meaning of reality. It’s the science of truth. Science, as it exists today, happens within the framework of philosophy. Philosophy, however, is bigger than science. It is also a form of art and discipline…... 3. Name three characteristics of Classical philosophy? deeply rooted in religious traditions ; believes that inferior was created by superior ; more positive ; seeks the real truth ; about intelligence ; reaalsuse üle mõtisklus ; believes that god is truth 4. Name three characteristics of Modern philosophy. believes that superior was created by inferior (!) ; more negative ; about will ; power ; domain of reality ; believes that knowledge is truth ; man is god 5. What was the problem that the first philo...
Frankenstein Mary Shelley About the Author Mary Wollstonecraft Shelley (30 August 1797 1 February 1851) was an English romantic/gothic novelist. She was born in Somers Town, London. Mary received an excellent education, which was unusual for girls at the time. She never went to school, but she was taught to read and write by her housekeeper and her father. She was married to a romantic poet Percy Bysshe Shelley. She began writing "Frankenstein" when she was only eighteen and it had conceived from a nightmare. Mary died, aged 54, at Chester Square in London, England. She was buried in St. Peter's churchyard in Bournemouth, Dorset, England. The Book The story begins in a vessel in the North Pole where captain Robert Walton was on a voyage of discovery. Suddenly he saw a man and he was Victor Frankenstein. Victor was very ill and he started to tell Robert a...
London Eye The London Eye, at a height of 135 metres and a weight of 1,700 tonnes, is the biggest Ferris wheel in Europe. It´s known also as the Millennium Wheel. It was built between 1998 and 1999. The London Eye has become the most popular paid tourist attraction in the United Kingdom, visited by over three million people in one year. When it was erected it was the tallest Ferris wheel in the world, until it was surpassed by the Star of Nanchang 160 m in May 2006, and then the Singapore Flyer 165 m on 11 February 2008. The London Eye is located at the western end of Jubilee Gardens, on the South Bank of the River Thames in London, United Kingdom, between Westminster Bridge and Hungerford Bridge. The site is adjacent to that of the former Dome of Discovery, which was built for the Festival of Britain in 1951. It was designed by architects David Marks, Julia Barfield, Malcolm Cook, Mark Spar...
TOPIC 3 James Watt James Watt was born in Scotland. James was a delicate boy and often suffered from severe headaches. That is why he could not go to school at the age when other children did. His mother taught him to read and his father taught him writing and arithmetic. He had a very good memory and a natural love of work. When his father saw that the boy liked to do things with his hands he brought him some tools from his workshop. For hours James would take his toys to pieces and the built new things from the parts to his own design. One day James noticed that, when the water in the kettle was boiling, the power of the steam moved the lid up and down, and when he held a cold spoon over the steam, it quickly turned back into drops of water. James was sent to a private school. He became good at languages as well as mathematics. In his spare time he began to make experiments. He managed to persuade an instrument-maker to take him as a...
Harjutusülesanne 3 3.1. Harjutusülesanne "Autori otsing" Nobeli preemia keemia alal anti 2001. aastal uurimistööle "Discovery and development of conductive polymers". Üks auhinna saajatest oli Alan G. MacDiarmid. Leia: a) mitu artiklit avaldas ta aastatel 1975 - 1985? 204 b) kuidas leidsid vajalikud andmed? Sisestasin autoriotsingusse autori nime, seejärel valisin sealt mitmeid variante sellest nimest ja sain tulemuse. Siis võtsin paremalt REFINE, Publication Year ja panin sinna antud aastad, vastuseks tuli 204 vastet c) mitu tööd sisaldasid kontseptsiooni "conducting polymers" või "plastics" 183 d) kuidas leidsid need tööd? Valisin REFINE, Research Topic ning lisasin märksünad concluding polymers or plastic. Eelnevalt kontrollisin ka seda, et otsing toimuks kõikide artiklite seast, mitte ainult nende, mis avaldati 1975-1985 aastatel e) mitu patenti on Alan G. MacDiarmid nimel? 29 f) kuidas leidsid vaj...
Film review · Background information · Story (Who, Where to, Why, How) · Characters (1&2), developments (values), important moments (entering, essays?......) the most interesting moment for me. · Personal opinion, recomnedations (Who for) 1. introductions 2. social system 3. when? (30 years ago) when filmed 4. mates` opinion Film review ,,Educating Rita" Some English lessons ago I saw a comedy about a teacher and a very memorable student. It was filmed abot 30 years ago by A young wife decides to complete her education and take her exams. She meets a professor who teaches her to value her own insights while still being able to beat the exams. Bored with teaching undergraduates English literature, Frank Bryant morosely reflects through a whisky glass on his failed marriage and his attempt at becoming a poet. His world is ...
Frankenstein by Mary Shelley Mary Wollstonecraft Shelly was an English romantic/gothic novelist, who lived 30. August 1797 till 1. February 1851. The idea for the book was influenced by her nightmare and she began writing “Frankenstein” in a very young age. This book provides a fascinating story of what one man can create and how it effect`s the people surrounding him. Therefore this book will make you WANT to know more when the story progresses. Not only does this book take an interesting look into the many events which occurred, but describes the characters who`s lives these intentions influenced, as well The story is about a man who had created a monster. The story begins in the North Pole, on a boat, where captain Robert Walton was on a journey of discovery. The Captain met a man whose name was Victor Frankenstein. Victor was very ill and his quest to destroy the monster...
Canada. Canada is a very large country. It is over 600,000 sq kilometers larger than the United States. Over 5,000 km of border separate Canada and the United States. Canada does not have nearly as many people as the United States, it has only a tenth as many. Its climate helps to explain why there are so few people in so big land. The northern part of Canada is called Eskimo land and there are very cold winters. Only in the southern part and the west coast is the climate as mild as in the western part of the United States. During the Ice Age almost all of Canada was covered time after time whit great sheets of ice. These sheets carried away much of Canada's soil to the United States. Parts of Canada were first settled by the French, part of it by the English. Picturesque Quebec is the most French, of Canada's big cities. Canada's largest city, Montrea...
3. HARJUTUSÜLESANNE 3.1. Harjutusülesanne "Autori otsing" Nobeli preemia keemia alal anti 2001. aastal uurimistööle "Discovery and development of conductive polymers". Üks auhinna saajatest oli Alan G. MacDiarmid. Leia: a) mitu artiklit avaldas ta aastatel 1975 - 1985? 67 artiklit b) kuidas leidsid vajalikud andmed? Sisestasin autori nime. Seejärel kuvati ekraanile igasuguseid variante, millest valisin nime Alan G. MacDiarmid. Seejärel klõpsasin ,,Publication years 1975- 1985. Sain 67 vastet. c) mitu tööd sisaldasid kontseptsiooni "conducting polymers" või "plastics"? 183 tööd d) kuidas leidsid need tööd? Tuli refine'i alt valida research topics, sisestasin otsisõnadeks "conducting polymers" or "plastics" . e) mitu patenti on Alan G. MacDiarmid nimel? 26 f) kuidas leidsid vajalikud andmed. Tuli refine'i alt valida ,,document type" ning klikata patent'i peal. Juhised ülesande lahendamiseks leiad : How to...
Christopher Columbus Christopher Columbus was born in 1415 in Italy. Although the exact date of Christopher's birth is unknown, he is believed to have been born between August 25 and October 31. He was the oldest of five children in his family. His father was a wool weaver. He helped his father with the weaving, but he always wanted to sail the seas. He didn't get to go to school very much, but he learned to read and write Spanish during his travels. He also taught himself Latin because all the geography books were written in Latin. He was a navigator, colonizer and explorer. He wanted to find a short way to get to the Indies by ship. He tried for eight years to get King Ferdinand and Queen Isabella to supply him with ships and money. Finally they agreed. In 1492 Christopher left from Spain with a crew of 90 men ...
The Renaissance Between 14th and 16th century in Europe From French word rebirth It was an age of growth in Europe. New, powerful city states emerged. A new middle class had more and more money to spend. Great artists, writers and thinkers lived during this time. During the Middle Ages many people who lived in the countryside worked on the land that they got from the noblemen. In return, they were protected by them Between the middle and the end of the 14th century, the plague, also called "Black Death" killed almost half of Europe's population. It spread most rapidly in the larger cities where many people lived. This led to economic depression. When the plague slowly decreased in the 15th century, the population in Europe began to grow. A new middle class emerged --bankers, merchants and trades people had a new market for their services. People became wealthier and had more than enough money to spend. They bega...
Satelliidid Mis on satelliit • Satelliit ehk tehiskaaslane on mõne planeedi gravitatsiooniväljas tiirlev kosmoseaparaat • Passiivsed tehiskaaslased- Maalt registreeritakse kaugeseire teel neilt peegelduvat päikesekiirgust. • Aktiivsed tehiskaaslased- nende pardal asub uurimisaparatuur või nad lähetavad kaugseiret ja -mõõtmisi võimaldavaid signaale. Aktiivsel tehiskaaslasel on informatsiooni kogumise, salvestamise ja edastamise seadmed, näiteks raadiotelemeetriaseadmed, laser ja mõõteaparatuur. Seadmete energiaallikana kasutatakse nt. päikesepatareisid Millised satelliidid • Sõjalised satelliidid • Vaatlussatelliidid • Sidesatelliidid • Navigatsioonisatelliid id • Ilmasatelliidid GPS-satelliitide orbiidid • Kosmoseteleskoobid keskmisel Maa orbiidil. Millist kasu saame meie satelliitidelt • Põllumehed määravad radari satelliidipiltide abil parima aja oma põldude niisutamiseks ja nisu korista...
House Carol Paesalu 8B klass House House-muusika on elektrooniline tantsumuusika, mis sai alguse Chicagost 1980ndate alguses. Oma nimetuse on see saanud klubi Warehouse järgi, kus selline muusika esimest korda tekkis. House oli esimene ja tähtsaim disko järeltulija. House'ile on iseloomulik rütmimasina põhirütm koos esiletoodud bassi ja basstrummiga ning elektrooniline süntesaatoritaust. Kõige tüüpilisem kiirus on 4/4 rütm. House muusikasse on lisatud ka jazz'i ja soul'i iseloomulikke omadusi. Stiilid Ambient house - Vastavat stiili on võimalik ära tunda seeläbi, et tüüpilisi acid house omadusi kasutatakse unelevamal, atmosfäärsemal moel. http://www.youtube.com/watch?v=8edVxpAX_WA Deep house - House'i aeglasem ja sügavam variant http://www.youtube.com/watch?v=WfoNE4WVrjo&feature=related Garage house - Tänapäevastest ele...
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