Question from my 4.5 yo son: What color eyes did dinosaurs have? |
- Question from my 4.5 yo son: What color eyes did dinosaurs have?
- Why do our eyes feel so heavy when we are sleepy?
- How are rabies vaccines made?
- Can objects (such as wood) reach high temperatures without burning?
- Why don't other viruses nearly eradicated by vaccines not evolve to evade immunity like Covid does?
- Is it a coincidence that chlorophyll absorption spectrum overlaps the visible spectrum?
- How accurate have most climate change models been over the last fifty years?
- Antarctica with no ice sheets, does that account for isostasy?
- How is dopamine signaling in the mesolimbic pathway associated with positive symptoms of schizophrenia?
- Do inner electron shells decrease in diameter with more protons?
- Do some animals who are not humans come to prefer cooked food? It so, why?
| Question from my 4.5 yo son: What color eyes did dinosaurs have? Posted: 05 Feb 2022 11:47 PM PST My 4.5 yo son loves drawing and learning. He's really into dinosaurs right now, so I got him a how to draw dinosaurs book and some children's level books on dinosaurs. After going through everything, he really wants to know what color eyes dinosaurs actually had, because he really likes to make his drawings realistic. I told him that we're making new discoveries all the time, but we still don't know some things, and he's down with that, because his books touched a lot on it. I tried looking up an answer, but I can only find recent discoveries on the color of their bodies/feathers. It's suggested that their eye color range would likely be similar to birds. Can anyone give me a more detailed/more accurate answer? Don't feel the need to skip out on details or bigger words, my son loves all the info he can get! I told him I'd have a good answer for him tomorrow when he wakes up. Thank you so much! [link] [comments] |
| Why do our eyes feel so heavy when we are sleepy? Posted: 05 Feb 2022 03:24 PM PST |
| Posted: 05 Feb 2022 11:39 PM PST What are the steps involved in making of Anti rabies vaccine? [link] [comments] |
| Can objects (such as wood) reach high temperatures without burning? Posted: 05 Feb 2022 03:23 PM PST I read a bit about active charcoal and how it's produced, so I got interested in the following: Does the wood only get heated (600-900 C) without necessarily burning? because burning wood creates ash, whilst active charcoal is from charcoal, which is not the same. Or is it inevitable for a combustible object to burn at high temperatures?' Edit: Additional info: To create active charcoal, wood is placed in an isolated fireproof container inside a hot system/fire with desired temperatures of 600-900 C for 4-6 hours. [link] [comments] |
| Why don't other viruses nearly eradicated by vaccines not evolve to evade immunity like Covid does? Posted: 05 Feb 2022 02:23 PM PST Covid-19 has seen lots of variants that evade the immune response from prior variants, either acquired from the virus or from vaccines made based on their spike protein characteristics. Measles is incredibly infectious but historically we were able to nearly eliminate it in the Western world. Why did it not evolve to evade vaccine induced immunity like Covid does? [link] [comments] |
| Is it a coincidence that chlorophyll absorption spectrum overlaps the visible spectrum? Posted: 05 Feb 2022 12:09 PM PST Is there any physiological or evolutionary connection between the absorption spectra of chlorophyll and the rods and cones found in retinae? [link] [comments] |
| How accurate have most climate change models been over the last fifty years? Posted: 05 Feb 2022 07:22 AM PST We know that the earth is heating because of us, but how accurate have most models been over the last 50 years or so in regards to temperature change or other effects? You often see "but they said new York or Miami would be underwater by now" as a dismissal of climate change, but was that ever really a mainstream climate prediction? [link] [comments] |
| Antarctica with no ice sheets, does that account for isostasy? Posted: 05 Feb 2022 01:05 PM PST There are many 'fun-fact' compilations that state that if Antarctica was without ice it would be an archipelago, but I get the feeling this is just reading off the raw elevation stat for the bedrock underneath the ice sheet. Obviously over a short timescale like anthropogenic climate change there would be no isostatic readjustment, but in what-if scenarios where ice never formed on Antarctica surely we would need to factor in the isostatic effect the ice sheet has had? The question then is, if you model isostatic rebound for an ice less Antarctica, does it become a full continent? [link] [comments] |
| Posted: 05 Feb 2022 04:16 PM PST If the primary task of the mesolimic pathway is to mediate pleasure and reinforcement, how does it effect our auditory or visual experience? [link] [comments] |
| Do inner electron shells decrease in diameter with more protons? Posted: 05 Feb 2022 09:13 AM PST I was actually paying attention to a science book for a change (Elements) and I noticed that within each row, atomic radius decreases as the elements go up. Such as Hydrogen 53pm and Helium 31pm. In the next row, Lithium, Beryllium, and Boron are 167pm, 112pm, and 87pm. I'm assuming but please check me that this is caused by the additional proton. That is, the extra positive charge both attracts a new electron and pulls the already present electrons in tighter. Building on this assumption, I started to wonder if the inner electron shells continue to shrink with every extra proton. The atomic radius, I presume, only measures the outermost shell, so I can't tell what the inner shells are doing. [link] [comments] |
| Do some animals who are not humans come to prefer cooked food? It so, why? Posted: 05 Feb 2022 12:51 PM PST |
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