extra2002
extra2002 t1_ja5nv01 wrote
Reply to comment by ExtremeQuality1682 in Eli5 Help, please my brain hurts. If there is an expanding ring of light from the big bang, what is outside it? by ExtremeQuality1682
The speed of something moving away is proportional to how far away it is, so the rate is measured as speed/distance. Speed is distance/time, so ...
extra2002 t1_j8i4diq wrote
Reply to comment by hawkwings in Are there any animals that are not arthropods that possess an exoskeleton? by jpdelta6
What about turtles? Isn't their shell intimately related to their spine & sternum?
extra2002 t1_jacf32d wrote
Reply to comment by Couple_Overall in Ukraine war: Zelensky says situation in Bakhmut worsening by jacobhong
What this is (perhaps) really about: Russia has been depending on oil and gas exports to run its economy. Gas was discovered under eastern Ukraine and Crimea. Russia needs to get control of that gas to prevent its economy from being undermined.