Page 198 - A Life - my Live - my path

My Ariadne’s thread: Science

- In September
Mass and energy are equal
E = m C 2

This equation - considered to be the world's best known -
highlighted the direct link between the mass of a material
and the energy it represents.
1 kg of matter equals: 1 kg x (300.000 km/s) = 9 10 joules.
10
2
And the unit of power is the Watt.
The equivalence is: 1 joule = 1 watt in 1 second; in other
words, we have 9 10 watts in 1 second.
10
90 billion watts in 1 second, that's the principle behind
atomic bombs.

We also know that 1 calorie represents 4.185 joules, giving
21,505,376,344 calories, or 21.5 billion calories.
A few hours of physical exercise!

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