Why aren't there an excessive amount of fossils right at the KT Boundary? |
- Why aren't there an excessive amount of fossils right at the KT Boundary?
- Why using placebo in vaccine testing?
- Why are fish livers fattier than mammal livers?
- If the Pfizer and Moderna vaccines are essentially the same, why do they have different waits between 1st & 2nd doses? And why is the age limit different for the two?
- Why are obese people less likely to develop lung cancer and highly likely to survive it?
- Is it true the fastest exit direction from our galaxy is toward Polaris?
- How can someone who is still being affected by a virus not be contagious?
- How do humans change their gait on slippery surfaces?
- What happens if you are given a covid 19 vaccine that wasn't refrigerated?
- has, at any point in the earths history, the seasons been different?
- When a person has two mother languages, how does the brain work to understand both? Does the brain have one "default" language of the two?
- In Molecular Bond Theory, do ALL atomic orbitals merge to form molecular orbitals when two atoms bond?
- What happens to dermal fibroblasts as we age?
- How was the Phase 1b 75 years and older age determined?
| Why aren't there an excessive amount of fossils right at the KT Boundary? Posted: 06 Jan 2021 07:41 PM PST I would assume (based on the fact that the layer represents the environmental devastation) that a large number of animals died right at that point but fossils seem to appear much earlier, why? [link] [comments]  |
| Why using placebo in vaccine testing? Posted: 07 Jan 2021 02:11 AM PST I´ve read some articles of vaccine testing. When they test the vaccine they give some patients the actual vaccine and some a placebo. I know about the placebo effect but how does this work? What is the placebo exactly? Does the patient know that they are given a placebo? What information will you get from using placebo on some patients? [link] [comments]  |
| Why are fish livers fattier than mammal livers? Posted: 06 Jan 2021 03:10 PM PST So many fish have these fatty oily livers, while beef liver etc. is incredibly lean. [link] [comments]  |
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| Why are obese people less likely to develop lung cancer and highly likely to survive it? Posted: 06 Jan 2021 01:42 PM PST I was reading up on a few things as this sort of this interests me and fascinates me. I'm curious as to any of your ideas or explanations as I have some of my own that I'm unsure of. Is this something that could be important in cancer research too? [link] [comments]  |
| Is it true the fastest exit direction from our galaxy is toward Polaris? Posted: 06 Jan 2021 01:09 PM PST My dad told me this the other day and, if it is true, it seems like a remarkable fact. I haven't been able to support it with anything other than that the galactic plane is roughly 63 degrees and earth's axial tilt is roughly 28.5 degrees, which is nearly orthogonal if both tilts were in the same direction. [link] [comments]  |
| How can someone who is still being affected by a virus not be contagious? Posted: 06 Jan 2021 10:29 PM PST I know someone who caught COVID by going to a friend's house for Thanksgiving. Now, over a month later they're "over it" but still have lingering problems like exhaustion, occasional coughing, and loss of taste and smell. How is it that they are still suffering from the virus, but are no longer contagious? Same question would go for other viruses too. So, in other words, why are you only contagious for the first week or two no matter how long symptoms linger on? [link] [comments]  |
| How do humans change their gait on slippery surfaces? Posted: 06 Jan 2021 04:33 PM PST I notice that when I walk on a slippery surface, like snow or ice, I walk in a slightly different manner to avoid slipping. It's a bigger change than just walking more slowly, because I notice that I use some muscles that I rarely use to that extent. What exactly is it that I am changing when I adapt my gait to a slippery surface? [link] [comments]  |
| What happens if you are given a covid 19 vaccine that wasn't refrigerated? Posted: 06 Jan 2021 05:22 PM PST |
| has, at any point in the earths history, the seasons been different? Posted: 06 Jan 2021 04:38 PM PST I keep trying to find a way to google this question but it wont bring anything up so I wondered to just ask. has at any point during the earths existence, not just humans existence, seasons been different. like for example, we have the seasons Spring, Summer, Autumn and winter. but at any point in the earths history, was this ever in any different order? or was summer time cold not hot? and winter hot not cold? [link] [comments]  |
| Posted: 06 Jan 2021 05:59 AM PST For example, i'm portuguese and when i'm speaking English my brain understands everything in portuguese. How does the brain work when someone have two languages? [link] [comments]  |
| Posted: 06 Jan 2021 08:59 AM PST I've recently been getting back into studying Chemistry and I'm a tad confused when it comes to Molecular Orbitals Theory. I think I understand the basic concept: atomic Orbitals are wave functions which merge constructively/destructively to form molecular orbitals. And I can pictures this easily when they discuss H and He since they only deal with the 1S orbital. But I'm getting a tad confused when it involves atoms with more occupied atomic Orbitals. When two separate atoms bond do ALL the atomic orbitals form molecular orbitals? Unlike VBT were it just the valence orbitals overlapping. For example when F. It has the electron configuration 1s2, 2s2 2p5. So when F forms F2 does each atoms 1S, 2S, 2px, 2py form molecular orbitals as well as their half filled 2pz orbitals? [link] [comments]  |
| What happens to dermal fibroblasts as we age? Posted: 06 Jan 2021 09:24 AM PST I don't really understand what it is that happens to our fibroblasts over time, do we actually lose them and stop producing fibroblasts (if we do replicate new fibroblasts or not)? Or do we still have fibroblasts well into our 70s and 80s, but they lose their function? [link] [comments]  |
| How was the Phase 1b 75 years and older age determined? Posted: 06 Jan 2021 05:22 PM PST I understand the complexity behind determining the phased rollouts (in the US) for the COVID-19 vaccine. I'm wondering, though, given that the mortality rate varies between race, socioeconomic background, etc. why/how/what the science or statistics were behind the "75 years or older" metric used for the 1b phase of the vaccine rollout? [link] [comments]  |
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