Problem, that is silent by everyone

Слайд 2

• 24 per cent of our galaxy’s elemental mass consists of helium

• 24 per cent of our galaxy’s elemental mass consists of helium
• Because of its lightness, helium vanished from our own planet many years ago • only a miniscule proportion – 0.00052%, to be exact – remains in earth’s atmosphere • Helium is the by-product of millennia of radioactive decay from the elements thorium and uranium

Слайд 3

AFFECTING THE SOCIETY GREATLY

AFFECTING THE SOCIETY GREATLY

AFFECTING THE SOCIETY GREATLY AFFECTING THE SOCIETY GREATLY

Слайд 4

UNIQUE PROPERTIES OF HELIUM

UNIQUE PROPERTIES OF HELIUM

Слайд 5

"the government had the good vision to store helium, and the question

"the government had the good vision to store helium, and the question
now is: Will the corporations have the vision to capture it when extracting natural gas, and consumers the wisdom to recycle? This takes long-term vision because present market forces are not sufficient to compel prudent practice”

"[t]he government had the good vision to store helium, and the

question now is: Will the corp

orations have the vision to

capture it when extracting

natural gas, and consumers the wisdom to re

cycle? This takes long-term vision because

present market forces are not sufficient

to compel prudent practice

Имя файла: Problem,-that-is-silent-by-everyone.pptx
Количество просмотров: 27
Количество скачиваний: 0