Do COVID tests actually take 24 hours to process or are facilities just swamped? |
- Do COVID tests actually take 24 hours to process or are facilities just swamped?
- Can you create DNA in a lab?
- How many bits of data can a neuron or synapse hold?
- Why does having a BMI of 40 or over make you eligible for a free flu vaccine (UK)? Is flu more dangerous for obese people?
- How do dolphins leap so high out of the water?
- Why are most beaches sandy?
- How is the Clever Hans effect accounted for in animal language experiments?
- Is it possible to sample COVID-19 or markers from human waste?
- How did salt help preserve meat in the middle ages? And assuming it was a huge amount needed for it not to rot, how was it consumable afterwards?
- Why is blood group O considered the universal donor if it has antibodies that can agglutinate with antigens found in other blood groups?
| Do COVID tests actually take 24 hours to process or are facilities just swamped? Posted: 24 Sep 2020 01:54 PM PDT I had a COVID test done the other day and they told me the results could take 24-48 hours. Does the actual test take 24 hours to process or are the testing facilities/labs just really busy? How long does it actually take from the moment they begin testing the sample to when the lab knows whether or not the sample is negative/positive? I'm specifically curious about nasal swabs. If the actual test in the lab takes 24 hours, why is that? Does something in the test need to be cultivated for that long? Edit: thank you for all the great in-depth responses and for all of the hard work from our lab techs/professionals! It's very humbling to hear from so many different sides of the process. :) [link] [comments]  |
| Posted: 25 Sep 2020 02:17 AM PDT With companies such as 23andMe mapping your genes, could someone take that raw data and artificially recreate your dna? What would be the implications of such a thing? [link] [comments]  |
| How many bits of data can a neuron or synapse hold? Posted: 25 Sep 2020 06:35 AM PDT What's the per-neuron or per-synapse data / memory storage capacity of the human brain (on average)? I was reading the Wikipedia article on animals by number of neurons. It lists humans as having 86 billion neurons and 150 trillion synapses. If you can store 1 bit per synapse, that's only 150 terabits, or 18.75 Terabytes. That's not a lot. I also was reading about Hyperthymesia, a condition where people can remember massive amounts of information. Then, there's individuals with developmental disability like Kim Peek who can read a book, and remember everything he read. How is this possible? Even with an extremely efficient data compression algorithm, there's a limit to how much you can compress data. How much data is really stored per synapse (or per neuron)? [link] [comments]  |
| Posted: 24 Sep 2020 09:41 PM PDT |
| How do dolphins leap so high out of the water? Posted: 25 Sep 2020 04:52 AM PDT They seem extremely capable of jumping great heights too, almost as if there is some evolutionary purpose. As a bonus question if I may, WHY do they jump out of the water? [link] [comments]  |
| Posted: 24 Sep 2020 05:38 PM PDT Let me rephrase it a little better by saying that why are most beaches sandy while some or not. Why is sand the only deposit from the oceans or seas. Should it not be an ever expanding process then? Do sandy beaches also keep expanding like the desert sand does? [link] [comments]  |
| How is the Clever Hans effect accounted for in animal language experiments? Posted: 25 Sep 2020 04:15 AM PDT Specifically, I mean projects like Alex the parrot) or various ape language studies. Given the circumstances of those experiments, I would expect that to be a big concern but I've never been able to find any details. [link] [comments]  |
| Is it possible to sample COVID-19 or markers from human waste? Posted: 24 Sep 2020 09:15 AM PDT Is it possible to sample covid-19 from Human waste A lot of crazy and less crazy ideas have been tested in the search for a sustainable way to track and sample COVID-19, lately in Denmark COVID-19 tracking dogs have been suggested. But I have yet to see a solution to sample, measure or track COVID through the sewer system, has it been tested , is it possible and if so what are the problems with upscaling it? [link] [comments]  |
| Posted: 24 Sep 2020 07:12 AM PDT |
| Posted: 24 Sep 2020 06:52 AM PDT |
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