Tag Archives: quick facts

The Sun is White, Not Yellow… and 8 other Astronomy Facts

The Sun is White… and 8 other Astronomy Facts 1. The energy required to stop the Earth orbiting the sun is about 2.6478 × 10^33 joules or 7.3551 × 10^29 watt hours or 6.3285*10^17 megatons of TNT. For reference, the largest nuclear explosion ever detonated (the Tsar Bomba by the Soviet Union) produced 50 megatons… Read More »

Why we Throw Coins into Fountains

Why we Throw Coins into Fountains People have been throwing coins into fountains seemingly as long as there have been coins and fountains. The tradition all started with water. While many people in the developed world today have clean, drinkable water readily available from their kitchen taps, this was not always the case. Potable drinking… Read More »