Doesn heat rise?
119. Have any changes been observed on the Moon? I happened to wonder if anyone has looked at the moon in the last 100 years or so and noticed a crater that ‘wasn’t there yesterday’. How many new craters have been observed and how big are they? That could kind of say things about safety HERE! We do have frequent meteorites, after all. I have even seen one myself Reply I once had an office on the same floor as a lady scientist, Winnifred Cameron, who very much wanted to find such changes. She used a special viewing device looking at two pictures of a region on the Moon, taken under similar conditions but at different times, flipping from one to the other and looking to see if anything changed. I don’t think anything ever did. She was particularly interested in observations of a Russian named Kozyrev, who claimed to see glows. As for impacts, it is only possible to see pretty big ones. If meteorite impacts are your interest, read the chapter “The Shoemaker Comets” in “First Light” by Ric
I was helping my wife in her 3rd grade class yesterday and one of the students came up with an interesting question. We were talking about how it gets cooler as you increase your altitude (specifically in the mountains). I was guessing that the temperature drops about 3 degrees for every 1000 ft that you climb. I was really caught off guard with a question from the “peanut gallery.” It was – “Doesn’t heat rise?” I said that that is correct, and conversely cold would tend to remain near the ground. He further questioned – “If heat rises then why wouldn’t it get hotter as you increase your altitude? I had no explanation. Can you help? Reply The answer below is tailored (I hope!) to the 3rd grade level, not an easy task. —————————– It is true–the atmosphere is hot at its bottom and cool higher up (at least for the first 10 miles or so). It is true even though, as we know, hot air tends to rise! It all happens because THE BOTTOM OF THE ATMOSPHERE IS WHERE AIR RECEIVES I
