CrashCalamity
CrashCalamity t1_j27rfkq wrote
Reply to comment by unsiker in So aliens come to earth and they're Sooo nice ... by ThomasKatt
I mean, he was a really nice guy
CrashCalamity t1_iuc7p4y wrote
Reply to comment by andreasbeer1981 in Is dark matter orbiting galaxies with the same speed as normal matter? by taracus
Consider: Dark matter is something of a "placeholder name" as it pertains to a theory to explain certain anomalous (yet repeatably measureable) results in astrophysics. Something is causing it, but we need to figure out what and how.
CrashCalamity t1_j6lgtir wrote
Reply to ELI5: How do we measure temperature without humidity? by [deleted]
We don't measure temperature based on feelings. The real temperature is often observed with thermometers (which do not transmit any moisture through the glass, so humidity is not even relevant here), relying upon heat transfer from/to the surrounding air to make the measuring medium (like liquid mercury) expand and contract.
The difference that you feel with humidity, and what the weather stations are trying to say, is that when there is more water in the air it becomes harder for you to cool off and regulate your body temperature. We rely on our ability to sweat, and for that sweat to quickly evaporate, to keep our internals at a comfortable level when we are exposed to heat.