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5 VÄGA HEA
Punktid

Disposal

of
Nuclear
Waste
Mattias Allpere 5.b
Radioactive waste is waste that contains radioactive material.Radioactive wastes are usually the by-product of nuclear techology and they are the remnants of nuclear fission.
There are different types of nuclear waste.Low-level waste, intermediate -level waste and high-level waste.Radioactivity diminishes over time.Low-level waste is stored in sealed facilities for hours ,days or weeks,but high-level waste stays isolated for thousands of years ,it is buried deep underground .
Radioactive waste comes from different sources as used nuclear fuel and from nuclear weaponry.If contracted, it will cause radiation sickness. http://en.wikipedia.org/wiki/Acute_radiation_syndrome
Radioactive waste is also planned to be disposed into outer space .This process contains launching multiple rockets,because one rocket could not carry much waste.
If an incident would happen to the spacecraft,lots of debris would be scattered in our atmosphere.
Nuclear weaponry is also a source of the radioactive waste.It causes a lot of radioactive waste.The nuclear bombs dropped on Hiroshima and Nagasaki resulted in casualties of a staggering 246,000 people.Radiation sickness killed thousands more.
Interesting fact:One the main components of a nuclear bomb,the plutonium-239
decomposes in some 44,000 years.An awful lot of time isn`t it?
Difficult words(alot of them )
radioactive-radioaktiivne
by-product-kõrvalprodukt
remnants-järelejäägid
fission-lõhustumine
intermediate-keskmine
diminish-kaduma
sealed-suletud
isolated-eraldatud
bury -matma
source-allikas(mitte vesi)
fuel-kütus
contract-omandama,tähendab ka lepingut.
dispose-lahti saama,eraldama
space-kosmos
multiple-mitu
incident-õnnetus
spacecraft-kosmoselaev
debree-praht
scatter-laiali lendama(siin kontekstis)
weaponry-relvastus
result-tagajärg
casualty-ohver
staggering-hämmastav
component- komponent ,osa
plutonium- plutoonium
decompose-lagunema
awful-aukartust äratav
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