Talk:Climate

Links (2019)

1. EXTERNAL LINK: A climate and biome code for Traveller worlds, akin to the Köppen or Trewartha climate classification systems combined with the Holdridge Life Zones and WWF Global 200, but expanded.

- Maksim-Smelchak (talk) 00:12, 14 April 2019 (EDT)

Notes (2017)

Temperature in a Vacuum (Deep Space):

• Space beyond the Earth's atmosphere isn't a bad approximation to a vacuum, but it is filled with solar wind particles, light from the sun, cosmic rays and cosmic microwave background radiation. It's probably also filled with dark matter which doesn't interact with other stuff (except gravitationally, and possibly only through the feeble weak interaction), as well as neutrinos.
• If there is no electromagnetic radiation then the temperature would be absolute zero. The third law of thermodynamics says that's not reachable.
• The temperature of an object is usually defined as the average kinetic energy of its constituent particles, and since a vacuum has no constituents its temperature would be zero under this definition. However, microwave radiation left over from the big bang does have an associated energy, leading to the universe having a "background temperature" of about 3 degrees above absolute zero (ie. -271 C).
• 0K (zero degrees Kelvin) or -273.15 degrees Centigrade.
• In a vacuum temperature is inapplicable. Temperature is a measure of kinetic energy.

- Maksim-Smelchak (talk) 00:58, 22 June 2017 (EDT)