- Da Vinci predicted a solar industrialization as far back as 1447. (To me this is the most intersting fact ever!)
- A world record was set in 1990 when a solar powered aircraft flew 4060km across the USA, using no fuel.
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Solar energy has many uses such as electricity production and heating of water through photovoltaic cells and directly for drying clothes.
Solar energy can also be used to heat swimming pools, power cars, for attic fans, calculators and other small …
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Did you know that the Earth rotates more slowly on its axis in March than in September? What do you think happens to the inhabitants of the earth when this happens?
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The most important formula to know when working with triangles is the Pythagorean Theorem.
A^2=B^2+C^2
You can use this formula when collecting or analyzing data for your entry into a online science fair contest.
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Straight line motion is calculated as follows:
a=(v2-v1)/t
where:
a= acceleration
t= time
v1= initial speed
v2=final speed
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