If you had a frictionless rope, would you be able to tie knots in it that would hold? Are there some knots that would hold and others that wouldn't? |
- If you had a frictionless rope, would you be able to tie knots in it that would hold? Are there some knots that would hold and others that wouldn't?
- How can supernova remnants become "static" in a region of space?
- How can photons colliding create mass through pair production if they have no mass themself?
- Where did all our nipples go? Did we ever have them at all? How many nipples did our evolutionary ancestors have?
- Is local water hardness affected by wet/dry seasons in the area?
- How are non-comedogenic skin products non-comedogenic?
- Can cancer happen in any organ?
- Are most Hypergiant stars already dead?
- Difference between dendritic cell vaccines and peptide vaccines?
- How do guanine nucleotide-binding proteins effect collagen and mast cells?
- If the Covid vaccine is approved for kids, would the dosage for a large 11 year old be the same as the one for a small 5 year old?
- Are electrons which share the same orbital more likely to be found near or away from each other?
- Long non-coding RNAs and open reading frames?
- When a pregnant woman gets vaccinated, does the vaccine make its way into the unborn fetus and build up its immune system in much of the same way as its mother?
- What is "Mango Tango" in carbon nanotube research?
| Posted: 20 Sep 2021 04:36 PM PDT |
| How can supernova remnants become "static" in a region of space? Posted: 21 Sep 2021 05:37 AM PDT Aren't supernovas ultra-hyper-super-powerful explosions? The debris from the explosion was supposed to expand onto a sphere surface at stupidly high speeds. So they should spread across the universe in order to isolate themselves more and more. But apparently our solar system formed in a molecular cloud that contained many heavy elements, which came from supernovae. This cloud, apparently, is analogous to clouds we have on earth, only less dense. It would be "static" in a region of space. But that seems too weird to me. How can this be possible? [link] [comments]  |
| How can photons colliding create mass through pair production if they have no mass themself? Posted: 21 Sep 2021 06:21 AM PDT I have been reading into pair production and I was wondering where the mass came from. Thank you for your help! [link] [comments]  |
| Posted: 20 Sep 2021 06:51 PM PDT I can't help but notice a lot of mammals have more nipples than we do. I understand that we don't need more nipples because we don't have as many offspring as some animals, but how did that work evolutionarily? Did we come from a common ancestor that had 6 nipples and we lost them along the way? Or did lots of mammals evolve lots of nipples independently? [link] [comments]  |
| Is local water hardness affected by wet/dry seasons in the area? Posted: 21 Sep 2021 01:59 AM PDT Random thing I just thought of. Is the water table in an area diluted enough from rain to make a difference in hardness? Or would it make the water in the ground more likely to take on minerals? [link] [comments]  |
| How are non-comedogenic skin products non-comedogenic? Posted: 20 Sep 2021 08:46 PM PDT Non-comedogenic skin products promise not to block your pores. How can a formula containing dozens of different compounds, not all volatile, not block your pores once slathered all over them? They surely can't all be absorbed by the body either, as in many cases (such as in a moisturizer), a long-lasting protective layer is the point itself. So how can these products accomplish what's promised of them, chemically/mechanically? [link] [comments]  |
| Can cancer happen in any organ? Posted: 20 Sep 2021 12:41 PM PDT I've never heard of renal cancer or heart cancer or bladder cancer, but is that just because they're incredibly rare? [link] [comments]  |
| Are most Hypergiant stars already dead? Posted: 20 Sep 2021 01:43 PM PDT Got a question are most Hypergiant stars already dead? Due to the fact they only live for millions of years. Or are hypergiants still being created? Second question is it safe to say most of the visible/ observed Hypergaints we know such as UY Scuti, and Canis Majoris have died now? Apologies for the stupid question but i was struggerling to find an answer on google for this, as it only pertains to blue giants of the largest type. Most questions similar are around stars in general meaning all sizes which means they can live for billions of years, but mine is only about the hypergiants that are noted to have much shorter lifespans of millions of years. taking into account the distance light has to travel and their relative shorter lives i thought its worth a go asking. [link] [comments]  |
| Difference between dendritic cell vaccines and peptide vaccines? Posted: 20 Sep 2021 09:19 AM PDT I'm the caregiver for someone on a clinical trial involving dendritic cell vaccine. After doing some research into past trials, I've noticed that the ones with dendritic cell vaccines seem to produce better results than the ones using peptide vaccines (even when the antigen is the same). Is there a reason why this could be the case? Is there any settled science about the difference between the two vaccine approaches? [link] [comments]  |
| How do guanine nucleotide-binding proteins effect collagen and mast cells? Posted: 20 Sep 2021 08:30 PM PDT |
| Posted: 20 Sep 2021 04:01 PM PDT My understanding is that the kids version of the Covid vaccine would be a much smaller dose than the one adults receive. When I was younger, my doctor told my mother that (despite my age) I could take the full adult dose of ibuprofen because of my height and weight. Do vaccines work the same? I've worked in schools with sixth graders who looked like they could be in high school. Would a 5 year old get the same dosage as an 11 year old who's 5'4 and 150lbs? They have the mass of an adult, so would they still be given the kids dosage? Would they be more prone to contract Covid as a result? [link] [comments]  |
| Are electrons which share the same orbital more likely to be found near or away from each other? Posted: 20 Sep 2021 07:32 AM PDT |
| Long non-coding RNAs and open reading frames? Posted: 20 Sep 2021 01:12 PM PDT Does anyone know why long non coding RNAs have open reading frames even though they don't code for proteins? [link] [comments]  |
| Posted: 20 Sep 2021 08:57 AM PDT Like, I keep hearing stories about how we don't have vaccines for children under twelve yet, at least not until this fall, and even then, for children between the ages of five and twelve. And it's because of that, it makes me think about how any children under the age of five, or even during infancy would be able to get the vaccine themselves. So I'm wondering if unborn infants growing in utero will get vaccinated any time their mother gets vaccinated while pregnant with them. [link] [comments]  |
| What is "Mango Tango" in carbon nanotube research? Posted: 19 Sep 2021 10:05 PM PDT I have been reading up on the processes around the manufacturing of carbon nano tubes. I've seen separate articles from MIT and Yale referencing a "home-built setup, a.k.a. Mango Tango" for their oxygen dehydrogenation reaction. What the heck is a Mango Tango setup? Edit, the articles didn't have any clear references to this setup either. [link] [comments]  |
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