The Earth's axis is said to precess, tracing out a circle in the sky once every 27,000 years. | |
The Earth's axis is said to precess, tracing out a circle in the sky once every 27,000 years. | |
So, towards the end of the last century, as the refrigeration precesses got better and they could go to lower and lower temperatures, people started trying to liquify gases that would only liquify at very low temperatures indeed, | |
So, towards the end of the last century, as the refrigeration precesses got better and they could go to lower and lower temperatures, people started trying to liquify gases that would only liquify at very low temperatures indeed, | |
Mercury's perihelion would have precessed in the opposite direction!" | |
Mercury's perihelion would have precessed in the opposite direction!" | |