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0 Votes
2 Answers
377 Views

Were astrologers and alchemists from pre-modern times the intellectual forebears to contemporary scientists?

How much real science was behind medieval times astrologers and alchemists? Hollywood has glamorized, but also mocked, those professions in fantasy and medieval movies. I'm wondering how much modern-day chemistry and science we can trace back to them?...

Science , Chemistry
asked: UTC 2020-09-07 02:08 AM
0 Votes
2 Answers
439 Views

Is there a shorter term for "equipotential surface of the Earth's gravitational field"?

I just used this phrase in another answer and I can't believe there's not some short term for it....

Science , Physics
asked: UTC 2020-07-30 10:05 PM
0 Votes
2 Answers
210 Views

What's the best way to identify the unknown species of a house plant?

I acquired a nice house plant from someone a few months ago, and I have no clue what it is. I also have no idea how to even start figuring it out. It's big and green, which makes it hard to describe in a google search! Any ideas or apps that would help me figure this out?...

Science
asked: UTC 2020-11-02 12:58 AM
image daina52 25
0 Votes
1 Answers
272 Views

Can we ever know if there is anything on the "other side" of the universe?

If the universe is expanding, it must be expanding into something, right? If so, then if the universe is expanding at the speed of light, is it even possible to ever find out what's on the "other side"? Not looking for religious answers. I really want to know if this is even physically possible?...

Science , Physics
asked: UTC 2020-10-05 01:58 PM
image NickG 135
0 Votes
1 Answers
273 Views

Ammonia and bleach makes chlorine gas. What other household chemical combinations can be dangerous?

Combining any sort of household cleaning agents is inadvisable, but it is easy to use more than one on different surfaces while cleaning the same room. This alone can cause toxic vapors, even when used in small quantities. Ammonia and bleach is the most well-known combination, but I’m sure the...

Science , Chemistry
asked: UTC 2020-10-06 01:55 PM
image SarahCzar 275
0 Votes
1 Answers
47 Views

My kids got a butterfly kit for Christmas. What am I going to do with a dozen live butterflies in the middle of winter?

All of the caterpillars in the kit have already gone into their cocoons, so they'll probably hatch before the end of January. The kit came with some food to keep the butterflies alive for observation, but the instructions say to release them outside after two or three weeks. There's a foot of snow o...

Science , Biology
asked: UTC 2021-01-06 04:18 PM
image SarahCzar 275
0 Votes
1 Answers
259 Views

Is it possible that there are particles smaller than quarks?

As various points in history, we've made conclusions that had eventually been proven incorrect. Is there a physical law that disallows particles smaller than quarks to exist? If so, does this size come from math in the Planck scale?...

Science , Physics
asked: UTC 2020-10-13 03:59 PM
image NickG 135
0 Votes
1 Answers
435 Views

Can you actually get a small profit doing your own opal mining at a tourist spot like Royal Peacock in Nevada, or would you be better off gambling?

I'm not asking if I should quit my day job or anything like that, but I think it would be really cool to have the cahnce to actually earn a little cash when on a vacation. I heard about opal mining tourism and I love the idea. However, I have no idea what kinds of opals are worth what and if how rar...

Science , Geology
asked: UTC 2020-07-27 09:27 PM
image myee4 80
0 Votes
1 Answers
33 Views

Why do raptors and raptors have the same name?

Raptors (birds of prey) are distant relatives of raptors (velociraptors) because they are birds, but what makes them so similar that they share a name? Is it a behavioral or structural thing? Is there a linguistic reason?...

Science , Biology
asked: UTC 2021-01-13 08:55 PM
image SarahCzar 275
0 Votes
1 Answers
245 Views

How far do gun shot noises travel?

Is there a certain distance away I'd have to be from a gun being fired to not hear it? Does it change with different surroundings? Is it different depending on the type of gun?...

Science
asked: UTC 2020-10-28 01:26 AM
image daina52 25