Activity for Pastychomper‭

Type	On...	Excerpt	Status	Date
Comment	Post #286180	Thanks, I've corrected it. (more)	—	almost 2 years ago
Comment	Post #286180	Thanks, that's an excellent point. (more)	—	about 2 years ago
Comment	Post #286002	I don't have the equipment to "tr[y] the proposed solution" but find the answer entirely believable. Thanks. (more)	—	about 2 years ago
Comment	Post #285985	That's a very good point, not least because spacecraft designers would probably be able to choose non-flammable materials for most of the contents (although that hasn't always been done). Still I'd be interested to know if it would work in a less mass-constrained setting. (more)	—	about 2 years ago
Comment	Post #283630	The "how" could be an interesting thread in itself. Possible methods I've heard of include sequestering greenhouse gases and covering huge areas of ocean in white material to reflect more sunlight. Both would need to be done on a vast scale, making them effectively sci-fi for now, but I wouldn't ru... (more)	—	over 2 years ago
Comment	Post #282568	Thanks, I've added links to both. (more)	—	over 2 years ago
Comment	Post #284240	This probably won't help in the near future, but it looks like the light would last longer if you could slow it down as it bounces between the mirrored sides. Something like Bob Shaw's fictional "slow glass" would be ideal, but there have been some real-world experiments that slowed light to a few m... (more)	—	over 2 years ago
Comment	Post #281056	The Aral sea (actually a lake) shrunk because the rivers that fed it were diverted for a Soviet irrigation project in the 1960s. This was an unusually large-scale project with an unusually drastic result. I gather from Wikipedia that water is extracted from rivers feeding the Caspian, but they have... (more)	—	about 3 years ago
Comment	Post #281153	Formaldehyde is an ingredient in some nail treatments, it makes the nails harder by creating cross-links between strands of keratin. Since these "keratin treatments" also involve formaldehyde I suspect they do the same thing to the keratin in hair - the hot bar straightens the hair and the formaldeh... (more)	—	about 3 years ago
Comment	Post #280267	Good points. I don't think the problems I described stopped them being used for horses, either. (more)	—	over 3 years ago
Comment	Post #280267	Years ago I was told there was a problem with rfid chips used in racehorses because it was easy to remove a chip from one horse and hide it in the mane of another to let the second horse temporarily impersonate (imequinate?) the first. It might be worth looking to that industry for pointers if you g... (more)	—	over 3 years ago
Comment	Post #276352	Chlorophyll is about 30% efficient at converting light energy to chemical energy, but only at certain wavelengths. The lower whole-plant efficiency figures that get quoted are due to that limitation compounded by things like limited CO2 and water availability, and the suboptimal collector orientati... (more)	—	over 3 years ago