Renewable energy Meriliin Lend Estonian University of Life Sciences Tartu 2013 Topics Renewable energy Solar energy Wind energy Hydroelectric power Geothermal energy Biomass energy Renewable energy Renewable energy comes from sources that naturally renew, or will not run out in our lifetimes. Includes sunlight, wind, water, geothermal heat and various forms of biomass. Renewable energy cannot be exhausted and is constantly renewed. Does not harm the environment. Saves money. Solar energy Solar energy is the technology used to harness the sun's energy and make it useable. Every hour the sun beams onto Earth more than enough energy to satisfy global energy needs for an entire year. Solar energy use has surged at about 20 percent a year over the past 15 years, thanks to rapidly falling prices and gains in efficiency. Solar energy is inexhaustible. Noise free.
Name at least 3 renewable energy sources. What consequence might there be if we use non-renewable energy too much? Which energy technology is the world's fastest growing? With what name is renewable energy also known as? Light Heat Electricity Generated from natural resources. Doesn't harm the environment. Can't be replenished Most of our energy. May cause global warming. Wind energy is the fastest growing. Most renewable energy comes from the sun. Hydroelectric energy is the oldest and largest source. Renewable energy a.k.a "green" energy. Thank you for listening! We use energy every day. It surrounds us in different forms, such as light, heat, and electricity. Our bodies use the energy stored in molecules of substances like carbohydrates and protein to move, breathe, grow, and think. We also use energy to do work and to play. Humans have invented thousands of machines and
Nuclear power produces around 11% of the world's energy needs, and produces huge amounts of energy from small amounts of fuel, without the pollution that you would get from burning fossil fuels. Nuclear power costs about the same as coal, so it's not expensive to make. Although not much waste is produced, it is very, very dangerous. It must be sealed up and buried for many thousands of years. For all that time it must be kept safe from earthquakes, flooding, terrorists and everything else. This is difficult.
1 Wave energy Introduction to wave energy There are several possibilities to harvest different forms of energy from the sea. One of these options is the usage of waves for the generation of electricity. The devices needed to perform this task are called wave energy converters. Wave energy is indirect solar energy in twice. At first there is the wind, which is caused by variations in atmospheric pressure due to a differential solar heating of earth's surface by the sun. Different regions of pressure drives a force which rises a movement of atmospheric air masses that causes the earths wind system. If wind strikes over the surface of an open water, waves are induced. First they are very flat with only a low level of energy. When there is a long distance over
SOLAR PANEL TTÜ 2016 WHAT IS SOLAR PANEL? • Panel which work by solar energy HISTORY • 1954 • Giacomo Luigi Ciamician • Company «Bell Labaratories» HOW DOES SOLAR PANEL WORK? PRODUCTS POWERED BY SUNLIGHT SATELLITE POWERED BY SOLAR ENERGY ADVANTAGES&DISADVANTAGES • Ecofriendly • Sustainability • Extensive range of applications • Cost • The need for cleaning • Weather
SOLAR ENERGY Karol Pakkas What is solar power? Solar power is energy that comes from the sun. The sunlight gives off energy as heat. Solar power is a renewable source of energy. How does solar power work? Solar panels are used to collect sunlight. Solar panels are made up of photovoltaic cells that convert the sunlight into energy. Why do we need it? How does it lead to better health? Solar power is source of clean energy. It does not produce pollution or greenhouse gases or carbon compounds. Solar power would be a lot safer for the environment and a lot better for the health of people. What would happen if we don't use solar power? If we don't start using solar power, we would use oil and coal. They produce pollution and will cause millions of people to suffer from respiratory related problems. The oil and coal will run out and people will have to resort to
SOLAR ENERGY Karol Pakkas What is solar power? Solar power is energy that comes from the sun. The sunlight gives off energy as heat. Solar power is a renewable source of energy. How does solar power work? Solar panels are used to collect sunlight. Solar panels are made up of photovoltaic cells that convert the sunlight into energy. Why do we need it? How does it lead to better health? Solar power is source of clean energy. It does not produce pollution or greenhouse gases or carbon compounds. Solar power would be a lot safer for the environment and a lot better for the health of people. What would happen if we don't use solar power? If we don't start using solar power, we would use oil and coal. They produce pollution and will cause millions of people to suffer from respiratory related problems. The oil and coal will run out and people will have to resort to
Water creates energy Eduard Kamenski 11a form The world uses energy from many different sources, such as: hydroelectric power, nuclear power plants, solar energy, and wind generated power. There are positive and negative aspects of each source, but which source of energy is best? My opinion is that the best source of energy is water and I'll bring up some facts why do I think so. Hydroelectric power is currently the world's largest renewable source of electricity. It accounts for six percent of the worldwide energy supply or about fifteen percent of the world's electricity. Water has been found to be a major source of energy. Water power is utilized at present mainly as hydro-electricity. It is produced from moving water and from falls with the help of turbines and dynamos.
Green Energy Program paid for and brought to by -Anja Bananja -Franz the Manz - And Just Chadrick Overview- What is Green Energy? Different Types? What is sustainability? German Green Energy Cost and Efficiency Recycling What is Green Energy? -It is energy resources that are renewable -Can be naturally replenished -Clean, Safe and not harmful to the environment (aka mother earth) Types of Green Energy Green Energy going cute Solar Power · Is produced by using photovoltaic cells, which capture sunlight and turns that into energy. Problems ? -The sun has got to shine -The cost of solar panels and the systems range between $20k-40k -The light from the sun produces a very small amount of energy
New energy sources Rauno Hermann Scheer Energy law example for 47 countries 6.3% to over 20% Numerous awards including The Right Livelihood Award Renewable energy in world Investments 63 billion USD > 120 billion USD 20062009 Wind energy: 74 000 MW to 135 000 MW Solar energy: 5100 MW to 19 000 MW WHAT ARE THE ALTERNATIVES TO TODAYS SOLAR, WIND AND BIOMASS ENERGY SOURCES? Osmotic power How it works? Pressure created by osmosis powers turbines Where could be used Where fresh and salt water meet (creeks, fjords) Desalination plants Now Worlds first test factory in Norway Tofte (2009) Disadvantages Km2s of membranes needed Norway, Tofte Click to edit Master text styles Second level Third level
Environmentalism Ozzie Zehner Author Ozzie Zehner Visiting scholar at University of California, Berkeley Kettering University ( BS – Engineering ) The University of Amsterdam ( MS/Drs – Science and Technology Studies ) http://boa.czp-vecer.si/vecer2000/20131211/5023698_ Primarily researches social, cultural, political and economic .jpg conditions influencing energy policy priorities and project outcomes Introduction This book talks about the negative side effects of the alternative energy like wind turbines, solar cells and bio fuels. We don't have an energy crisis. We have a consumption crisis. And this book, offers refreshingly straight talk about what's wrong with the way we think and talk about the problem. Though we generally believe we can solve environmental problems with more energy, Solar cells Advantages: Simple
SISUKORD ENERGY STORY................................................................................................................4 USES OF ENERGY............................................................................................................. 4 2.1 Uses of energy in homes...............................................................................................5 2.2 Types of energy used in homes.................................................................................... 6 2.3 Energy use in different types of homes........................................................................ 6 2.4 Commercial Energy Use...............................................................................................9 2.5 Industrial and Manufacturing Energy Use..................................................................11 2.6 Transportation Energy Use.......
Running head: NUCLEAR ENERGY Nuclear Energy U.S. Government History of Nuclear Energy- Nuclear Energy History of Nuclear Energy · Uranium was discovered in 1789 by Martin Klaproth. He was a German chemist, and named his discovery after the planet Uranus ("Outline history of," 2010) · 1939-1945 Manhattan Project- atomic energy program to develop the first transportable atomic bomb ("Nuclear technologies timeline," ) · 1942- First self-sustaining nuclear chain reaction ("Nuclear technologies timeline," ) · 1945- Hiroshima and Nagasaki- US. drops atomic bombs to Japan to end World War II ("Nuclear technologies timeline," ) · 1946- First nuclear energy in civilian use ("Nuclear technologies timeline," ) NUCLEAR ENERGY
Environment and renewable energy 1. How can we help bring about a change in behavior? * Renewable energy is the sun and the water that people use, but not yet so widely. Required on all homes, various stations, hypermarkets solar panels to use the potential energy, the stock of which is not completed within 5 billion years. * Renewable sources such as wind and solar are intrinsically unsuited to meeting the demand for continuous, reliable supply on a large scale – which comprises most demand in developed countries. The criteria for any acceptable energy supply will continue to be cost, safety, and security of supply, as well as environmental considerations. 2. How can we encourage sustainable development?
It is said that the wind power is the most expensive source of power, but this statement is not plausible, because the recourse -wind- is for free. Calculations have shown that if new oil shale blocks were built, it would cost 3473 million EEK in a year per capita. On the other hand, if wind power were renewed in similar amount, it would cost only 868 million EEK per capita in a year. It means that if the wind power were renewed, it would be 17 370 millions EEK cheaper. The fact that wind energy saves resources and produces neither dangerous emissions nor toxic waste is also in favour of wind energy. Power from oil shale In the time when many world countries close factories that use fossil fuels, Estonia is starting to build new factories that work with oil shale. Taxpayers pay subsidy for oil shale in every year unconditionally the amount electricity produced and also when it is known that this source of energy has no perspective
Exercise Physiology Anaerobic Energy Systems Anaerobic Pathways · Anaerobic Glycolysis (lactate system) 10 s to 2 minutes. · ATP-PCr (phosphate system) Less than 10 s · 200 m Sprint (50-100 m Sprint swimming) Men's WR:19.32 s - Michael Johnson (37.3 km/h) Women's WR: 21.34s - Flo Griffith-Joyner (34 km/h · Energy system: The lactate system · Fuel: Carbohydrate only Anaerobic Glycolysis · Breakdown of glucose or glycogen via special glycolytic enzymes. · First glucose or glycogen must be converted to Glucose 6-phosphate. Glucose to glucose 6-phosphate costs 1 ATP · Glycolysis produces pyruvic acid, without oxygen pyruvic acid is converted to lactic acid. · Net gain 3 moles of ATP (glucose = 2 ATP) Anaerobic Glycolysis · Reserve fuel activated when a
The RRR rule Reduce- reduce your waste. That means, use alternatives to things that you would just throw away. For example: instead of paper cups and plates use ordinary plates. Reuse- Use thing that you have already got or give them to people who need those things. For example: glothes, use newspaper as a wrapping paper. Recycle- recycle thing. It does not take too long and it makes so much differencs Saving energy and your money Save electricity - people use a lot of electricity only because they forget or leave electrical appliances on. How: unplug everything that you do not use and do not forget to turn the light off Save water - Wasting water wastes electricity wich wastes energy. How: repair all leaky water mechanisms and if possible take shorter showers Saving energy and your money Save gasoline- It takes a lot of energy to operate a car.
How energy drinks affect our bodies? Energy drinks 1997 debut of Red Bull Caffeine, taurine, vitamins, herbal supplements, and sugar or sweeteners Marketed to improve energy, weight loss, athletic performance 30 to 60 minutes after consumption Targeted to 18 to 35 year old consumer Stimulative ingredients Caffeine Taurine Guarana Popular brands Hundreds of different brands Most popular brands: Red Bull, Monster, Rockstar, Burn Effects on central nervous system Chronic daily headaches Agitation Irritation Psychosis Changes in mental condition Insomnia Hallucinations Cardiovascular effects
3 Energy Dividends You Can Still Trust This has been a bad year for energy dividends, but there are still a few out there that investors can still trust. With the price of oil recently hitting a sevenyear low and natural gas now at a 14 year low, there has been a deep impact on the cash flows at oil and gas companies. Many don't have enough money coming in to drill the required number of new wells needed to maintain their production rates, let alone any left over to pay shareholders a steady dividend
Tartu Miina Härma gymnasium Biogas The source of future energy Report Tartu 2010 Table of Contents Introduction......................................................................................................... What is biogas?................................................................................................... Producing process............................................................................................... Nowadays...............................................
while mid winter is June/July. The climate is oceanic temperate. The seasonal variations in New Zealand weather are smaller than continental North America or mainland Europe. North Island has a warm mild climate, almost sub-tropical in the extreme north. Auckland average summer temperature (January) is about 21C and winter is 11C. Annual rainfall in North Island is around 125-150cm, the west receiving slightly more rain than the east. South island is colder. Energy and natural resources: Despite a comparatively small population and abundant natural resources, New Zealand is a net importer of energy. Energy importation is in the form of oil products. About 30% of primary energy is from renewable energy sources. The leading manufacturing sectors are food processing, metal fabrication, wood and paper products. Natural resources: natural gas, iron ore, sand, coal, timber, hydropower, gold, limestone Government & economy:
Ursula Potivar Healthy eating and school lunches Healthy eating Healthy eating is about feeling great, having more energy, and keeping yourself as healthy as possible. Healthy eating is a way of balancing the food you eat to keep your body strong, energized, and well nourished. When you eat well, you are taking good care of your body. Your food choices can reduce your risk of illnesses such as heart disease, cancer, and diabetes, as well as defend against depression. Additionally, learning the habits of healthy eating can improve your health by boosting your energy, sharpening your
Jaapani energeetika Click to edit Master text styles Second level Third level Fourth level Fifth level Nafta Geograafilised eelised Kliima Mäed Vulkaanid Kuumaveeallikad Tõusud ja mõõnad Tuumaenergia 1966. aasta Mitmekordne kasutus Reeglistik 2011. aasta katastroof Fukushimas CO2 maht Maagaas Populaarsus Tuumaenergia asemel peale katastroofi Osaka Gaas, Tokyo Gaas ja Toho Gaas Austraalia, Venemaa, Indoneesia ja USA Tahked kütused Baasküte energiageneraatoritele Probleeme kivisöe kättesaadavusega Maavärinad Loodusesaaste Nafta 44 miljonit barrelit enda tagavara Läänekallas JNOC Projektid Sissevedu III koht Taastuvad energiallikad Geoterma...
Improved Windows for Cold Climates In this paper the possibilities of improving the energy performance of windows in cold climates are exam-ined. The background for using windows with improved energy performance is the need to reduce the en-ergy consumption in buildings. Since the heat loss through windows often represents half the total heat loss from houses, much energy can be saved by developing and using better windows with respect to energy performance. The main purpose of having windows in houses is that they provide daylight and view, but windows also provide solar gain that can be utilized as a contribution to the space heating in the building. Therefore the windows also have a positive influence on the energy balance of buildings. To evaluate the possibilities for developing better windows with respect to energy performance when used in Nordic and arctic climates, seven different
ELEKTROENERGEETIKA INSTITUUT Referaat Taastvad Energiaallikad Esitamise tähtaeg 14.04.2009 Õppejõud: Hannes Agabus Tudeng: Sergei Belosapko Nikita Naumov Tallinn 2009 Contents: 1. Renewable energy 1.1. Costs................................................................................................................... 2 1.2. Potential future utilization..............................................................................4 1.3. Why Don't We Use More Renewable Energy? ...........................................5 2. Energy Types 2.1. Wind Energy.......................................................................................................6 2.1.1. Annual Generation.......
Argumentative presentation: Estonia does need a nuclear power station Good evening. My name is Margus and I will be talking to you about why does Estonia needs a nuclear power station. My talk consists of 3 parts: the current situation, renewables and how can nuclear power save Estonia from an energy crisis. My talk will last for 2-3 minutes and questions can be asked at the end. Power consumption is increasing exponentially in all civilised countries. Estonia's coal based power generation is becoming obsolete in the near future. The question arises : "Where will the future generations get the energy that they need?". First of all, in the current year, the power consumption reached the highest of all tomes in February
FOREST BIOENERGY Outline Introduction: wood as a fuel Main body: diferent wood made energy products Conclusin: summarising the usage References Introduction • Fossil fuels: dominant source of energy. • Biomass accounts about 10% energy supply • Wood- based fuels from fast- growing species. • Forest biomass: reneweable energy • Forest biomass, mainly used in the Nordic countries. Wood based fuels sources •Energy forest •Forest biomass •Recycled wood Wood Biomass • Biologicalmaterial derived from living, or recently living organisms. • Can be used after converting it to various forms of biofuel. • Woodchips • Pellets Bioenergy • Energy produced from biomass. • Electricity, heat, and transportation fuels. • Eesti Energia and bioenergy. Benefits of Biomass • Environmental Benefits • Economic Benefits • Energy Benefits Biofuels • Solid fuels
Solar Energy Presentation Introduction Solar energy Solar power Ø applications Ø energy storage method and solar power plants Solar energy Radiant light and heat from the sun Solar energy technologies include: Ø solar heating, Ø solar photovoltaics, Ø solar thermal electricity , Ø solar architecture Solar power Conversion of sunlight into electricity Using: Ø Photovoltaics (PV) Ø concentrated solar power (CSP). Click to edit Master text styles Second level Third level Fourth level Fifth level
Green Technologies - innovation and climate change sustainagility Scientists can examine ice, but they cannot tell out anything about our future. Even if scientist has lived thousand years he won't be able to do it. The graph in video shows that the amount on carbon dioxide rises and then rises the temperature, but it is not so, it is exactly the opposite. One way to save energy is to build better buildings, because big headquarters are built to last only for 30-35 years. Building them up and pulling them down needs a lot of energy and about 30% of building energy is spent on it. It is thought that if in Tokyo 50% of all roofs are green it will save 1 million dollars a day of Tokyo businesses in cooling costs. Street light use 5% of energy, but it can be reduced to 2%. Usual TVs should be replaced with Plasma TV, because it saves energy more
Table of contents Introduction..........................................................................................................................................3 What is nuclear power?....................................................................................................................3 Nuclear life cycle.............................................................................................................................3 What is nuclear energy?...................................................................................................................3 What is nuclear fusion?....................................................................................................................4 What is nuclear fission?...................................................................................................................4 What is radioactive decay?.................................................................
Floating Wind Turbines University of Tartu 2012 Featured topics Basic layout of wind turbines About FWT Technology and advantages Initiatives Conclusion Introduction to how wind turbines work Electricity Kinetic Click to edit Master text styles Second level energy of the wind Third level is converted to Fourth level mehanical energy. Fifth level Main parts 1. Rotor blades 2. Shaft 3. Generator Introduction to how wind turbines work Click to edit Master text styles Click to edit Master text styles Second level Second level Third level Third level
Renewable resources: Some natural resources can be reproduced within a few years or decades. These are called renewable resources. Solar radiation, wind and hydroelectricity, are perpetual resources that are in no danger of a lack of long-term availability. Some natural renewable resources such as geothermal power, fresh water, timber, and biomass must be carefully managed to avoid exceeding the worlds capability to displace them. Solar energy is the energy derived directly from the Sun. Along with nuclear energy, it is the most important source of energy on Earth. People usually use solar energy to produce electricity and heat. Wind power is the conversion of wind energy into a useful form of energy, such as electricity, using wind turbines. These wind turbines are popular in counties, where the average speed of the wind is at least 6 meters per second for example in Germany, Denmark, USA and India.
Hello My name is JOHN SMITH and I am here to talk about Hydroelectricity. Global energy use has risen by 70% since 1971 and continues to increase at the rate of 2% per year. There are many scenarios for future demand. One solution would be to use more hydropower. In 2005, renewable energy represented one-fifth of total power generation. Hydropower is the most advanced of the renewable and represents 87% of this production. 160 countries all over the world are using hydropower. Five countries make up more than half of the world's hydropower production. Those countries are: Brazil,Canada, China, Russia and the USA. (Production) *Most of the energy comes from the potential energy of dammed water driving a water turbine and generator
pollution that is much more radioactive and toxic than, for example, coal waste. But if we are looking at the facts, burning coal pollutes the Earth much more than nuclear power plants because more waste is generated. CO2, which is released from burning coal, is the main cause of global warming. Nuclear waste is collected and hidden in rocks or under ground, where it won't face the environment. However we shouldn't depend on nuclear energy as Uranium reserves are ending, especially when the world population is increasing and so is the demand for energy. There is Uranium in seawater, but getting it is too expensive. We can only depend on nuclear power for a few years or decades. On the other hand, we will always have wind and solar power. Right now, producing solar energy is quite expensive but as technology improves, we will hopefully be able to produce solar energy with lower costs. The world should use as much wind and solar
GLOBAL WARMING Global warming is the observed century-scale rise in the average temperature of Earth's climate system. Since 1971, 90% of the increased energy has been stored in the oceans, mostly in the 0 to 700m region. Despite the oceans' dominant role in energy storage, the term "global warming" is also used to refer to increases in average temperature of the air and sea at Earth's surface. Since the early 20th century, the global air and sea surface temperature has increased about 0.8 °C (1.4 °F), with about two-thirds of the increase occurring since 1980.Each of the last three decades has been successively warmer at the Earth's surface than any preceding decade since 1850.
Good afternoon everyone, my name is Kristiina, I´m a second year student here at Tallinn University of Technology and I´m standing here in front of you to talk about the ,,passive houses I will inform you about their magnitude and percentage nowadays and also talk about the potential difficulties that might appear when building a passive house". But I´ll start off by giving you an overview of the term. The definition of a passive house is based on its extremely low energy need. Passive houses consume less than a quarter of energy required for a standrard building, as a result reducing its ecological footprint. So it´s a ultralow energy building which requires little energy for space heating or cooling. Sounds appealing right? Sustaining the earth for our future generations and also in the long run benefit from living there with paying lower taxes. However sadly, nowadays there is known to be only up to 20,000 passive houses world-wide out of 1,6
Coplementary and alternative medicine Paula Johanna Rõuk Basics CAM Nearly 40% of cancer patients use some form The most common CAM therapies used in the US prayer (45.2%) herbal medicine (18.9%) breathing meditation 11.6%) meditation (7.6%) Classification Whole medical systems Mind-body medicine Biologically based practices Manipulative and body-based practices Energy medicine Wholemedicalsystems Presence of energy in your body Ancient healing systems Ayuverda Traditional Chinese medicine Homeopathy Naturopathy Mind-body medicine Harmony of mind and body Meditation Prayer Yoga Tai chi Biologically baced practices Special diets Vitamins Teas Oils capsules Body manipulation Human touch Chiropractic Osteophaty Energy medicine Reblocking energy force Magnet therapy Reiki Acupuncture
The first windmill for electricity production was built in Scotland in 1887 to power the lighting in the cottage, thus making it the first house in the world to have its electricity supplied by wind power. During the Second World War, small wind generators were to recharge submarine batteries. In the 1990s, wind power became more important, because fossil fuels pollute the atmosphere and humanity needed alternative fuels. That's because wind power is so necessary. Wind power is also renewable energy and it doesn't cause greenhouse gases. Building windmills is actually quite expensive and they need repairing or replacing about every 12-15 years. And strong winds can also break the wind turbines. Considering these things the wind power cost more than the energy from fossil fuels. Also the turbines are unpleasant to look at and if you live near the wind farms then they make a bit noise. Wind farms take a lot of space which you can use for farming.
Solar power What is solar power? Solar power is the energy, which is derived from solar radiation energy. Mainy used to heat and power production, but as well as natural lighting. Solar power released as a result of fusion reactions taking place in the sun. What is solar power? Päikeseenergia on energia, mis on saadud päikesekiirguse energiast. Põhiliselt kasutatakse seda soojuse ja elektri tootmiseks aga ka loomulikus valgustuses. Päikeseenergia vabaneb päikesel toimuvate termotuumareaktsioonide tulemusel. Using heat production
technologies. Second-generation biofuels are not yet commercially viable and therefore will not be discussed; although they could significantly improve the sustainability of biofuels when they break through to the industrial scale. 2. The scale of biofuels production 2.1. Drivers of biofuels production Lal (2010) stated that "three inter-connected challenges face humankind in the 21st century": food security, climate change, and energy security. The world population is projected to reach 9 billion in 2050, posing more demands on energy, food, and other natural resources. It has been estimated that the world food production needs to double and meat production increase by 85% by 2050 to fulfill projected demand by population (Karp, 2011). In the recent decades, the food consumption in the most populous counties has shifted from grain-based diets to meat and dairy diets
How to produce bioenergy from agricultural resources without harming the environment Jürgen Aosaar Jaak-Albert Metsoja Ahto Oja BOVA cource on biogas from biomass March 3-7 2008 Tartu Deciduous tree species on abandoned agricultural land Current situation • The long term development plan of the Estonian energy industry foresees a reduction in the use of fossil fuels and an increase in the share of biofuels: by the year 2010 renewable energy must account for 5.1% of total energy consumption Current situation (2) • In Estonia we have abandoned arable land about 400 000 ha, part of it is overgrowing naturally, and another part has been afforested • For short-rotation forestry in Estonia, ecologically and economically the most suitable tree is probably grey alder, which
A diet for a Sportsman It is indeed for sportsman to keep a check on what they are eating. Healthy nutrients helps them to gain energy to stay longer in their game or sports. As a sportsman, you must avoid junk food and you have to try to eat as healthy food as possible. You must eat rich carbohydrates, moderate proteins, vegetables and minerals. Just before your game or training begins, it is good for sportsman to be overloaded with carbohydrates - gives you lots of energy. Also, you must know that eating only one type of food can be serious problem in future for your body
The essence of the Boussinesq approximation is that the difference in inertia is negligible but gravity is sufficiently strong to make the specific weight appreciably different between the two fluids. Sound waves are impossible/neglected when the Boussinesq approximation is used since sound waves move thru density variations. 8. Three laws of thermodynamics? First Law of Thermodynamics The first law of thermodynamics is often called the Law of Conservation of Energy. This law suggests that energy can be transferred from one system to another in many forms. However, it can not be created nor destroyed. Thus, the total amount of energy available in the Universe is constant. Einstein's famous equation (written below) describes the relationship between energy and matter: E = MC 2 In the equation above, energy (E) is equal to matter (M) times the square of a constant (C). Einstein suggested that energy and matter are interchangeable
c ar? 1. Made of lightweight materials hybrids are small in size. The engine is designed to be fuel efficient. When the car halts at a signal, the engine will automatically shut down and restart when the car shifts into gear. 2. These cars have the advantage of being powered by a gasoline engine and an electric motor that takes care of acceleration. 3. The batteries of the electric motor recharge automatically by harnessing the kinetic energy produced during braking. 4. Hybrid car engines produce less emission, give better mileage, idle less, and are fuel efficient. Why to purc has e a hybrid c ar? 5. The aerodynamic design reduces drag and the tires are made of a special rubber that reduces friction. 6. The battery has high capacity and is made of nickel-metal- hydride. The battery can run the hybrid when called for. 7. The power-train technology enables using two power sources
ELECTRIC CARS 2016 Electric car – what is it? • Powered by one or more electric motors, using electrical energy • Energy is stored in rechargeable batteries or another energy storage device • Require charging. Can be charged from home or special station History • First electric cars were produced in 1880s • Were popular in 19th and 20th cebtury •Then ICEs became more advanced Advantages • 3 x more efficient as ICE • Quieter • Do not emit tailpipe pollutants • Instant, strong and smooth acceleration • Lower running costs • Government discounts Disadvantages • Battery wears out over time • Batteries are expensive
Canada Inc following the merger of the two parent companies. In August 2007, the company was renamed Chrysler Canada Incorporated when Cerberus Capital Management purchased 80.1% of its parent company Chrysler LLC. They produce certain models of Chrysler, Jeep and Dodge. Chrysler Canada has three vehicle assembly plants in operation in Canada, and built 535,878 cars and trucks in 2002. They produce certain models of Chrysler, Jeep and Dodge. Husky Energy Inc. Husky Energy Inc. is a large Canadian integrated energy company based in Calgary, Alberta. Focusing on petroleum and natural gas exploration, production, refining and retail sales, the company primarily conducts operations in Canada, the United States, China and Indonesia. The company employs approximately 4100 people , has almost $21 billion in assets, and produces an average of 385,000 barrels of oil equivalent per day , making it one of Canada's largest energy companies. Flickr
Nuclear weapon Heleanor Kala Henri Möll What is nuclear weapon? • tools of mass destruction • suddenly releases the energy • explosive devices • nuclear fallout • damage your blood, cells and organs • special isotopes of uranium or plutonium how it works? • atom • breaking that nucleus • combining two nuclei • large amounts of energy history • Scientist discovered how to create a chain reaction • in the 1930s • Robert Oppenheimer • Manhattan Project • development of the nuclear bomb Nuclear bomb effect • release four kinds of energy 1. Radiation (Cause Disease and will effect the next Generation) 2. Electromagnetic 3. Heat 4. Pressure Hiroshima • Hiroshima was the primary target of the first nuclear bombing mission on August 6, 1945 • “Little boy”
How can we increase the quality of breathable air? “I’ll go out for a breath of fresh air” is an often-heard phrase. But how many of us realize that this has become irrelevant in today’s world? Air pollution is the addition of any harmful substances to the atmosphere, which causes the damaging of the environment, human health and the quality of life. Firstly, we should use green methods of powering like wind energy and landfill gas energy. This would reduce the amount of harmful gases. Another useful suggestion would be to plant trees. In this way we can increase the source of breathable oxygen. Unfortunately, many companies are contributing to deforestation. Finally, it would help if we put taxes on carbon emissions or higher taxes on gasoline. In this way people and companies will have greater incentives to conserve energy and pollute less. In conclusion, there are many ways to pollute the air less. We all
1. Traditsioonilised energiavarud Saudi Araabias leidub kasutatavatest maavaradest naftat ja maagaasi. Allpool oleval joonisel on näha, et enamus varadest asuvad Pärsia lahe rannikul või siis natuke rohkem sisemaal. Suuremad leiukohad on just rannikul. Naftat leidub kõvasti rohkem kui maagaasi. Joonisel on rohelisega märgitud nafta leiukohad ja punasega maagaasi leiukohad. Joonis 1: Saudi Araabia energiavarade paikenemine Allikas: Energy information administration Alternatiivenergia Kasutamist soodustavad Kasutamist takistavad tegurid liik tegurid Päikeseenergia Väga päikeseline riik. Nafta ja maagaasi varud kaaluvad üle (eraomanduses) päikeseenergia kasutamise. Tööstustes pole
There are usually about 10 signs or more on one post , and its really hard to see them when driving, so tourists disturb traffic quite often when slowing down to read the signs All the signs are multilingual ,due to high percentage of English speakers Forests Ireland has only about 8 % of his whole land covered with forests. Centuries ago people cut the forests and didn't think about the future so nowadays there is mostly peat ( turvas) which Ireland uses to produce energy. Economy Ireland had a big economic boom in the late 20'th century, but now the Republic of Ireland is ranked the second wealthiest per capita country in the European Union. Education in Ireland is free at all levels, including college. The construction sector, which is inherently cyclical in nature, now accounts for a significant component of Ireland's GDP. ( ehitus/tõõstus sektor, mis on loomupäraselt tsükliline , mängib nüüd iirimaa GDP's märkimisväärset rolli - GDP =SKT )
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