Iridium and similarly hard metals are difficult to machine due to extreme work hardening. Is "grinding" based machining also affected? |
- Iridium and similarly hard metals are difficult to machine due to extreme work hardening. Is "grinding" based machining also affected?
- How do they search for patient zero?
- Since photons have no charge, what force or mechanism causes them to deflect/scatter when coming into contact with matter?
- Could seasonal influenza be reduced/eliminated at the same time as COVID-19?
- How do they figure out the correct dosage of a vaccine to ensure that all people of varying sizes and ages will develop an immunity to the disease?
- What is the majority of the liquid in a flu shot?
- These days I'm hearing a lot about diagnosis using pcr. My question is: once you have a lot of copies of the genetic material you want to test for, plus whatever other genomes were in the sample, how do you isolate it from the rest and identify it?
- How can cities reach a covid 19 peak while we're social distancing?
- How does the sun have a magnetic field when both helium and hydrogen have a very weak magnetic field, and when things are very hot they lose their magneticivty?
- Since MERS has a high fatality rate (36%) and only about 2500 confirmed cases over a span of eight years, why hasn't it been contained (and basically eliminated) like SARS-CoV-1 was?
- Why we itch? What is the science behind it?
- What determines how long immunity would last?
- Why hasn't COVID-19 slowed the rise of atmospheric C02?
- What makes Zoom (or other video conferencing software) a security risk?
- Why did the Smallpox vaccine work?
- Why are gold and copper the only metals that, in their elemental form, have a different color from the rest of the silvery grey metals?
| Posted: 10 Apr 2020 03:19 PM PDT I understand how drilling and traditional milling would be made essentially impossible due to rapid work hardening, but couldn't a "grinding" approach be used to get around this? Is there something I am not understanding about work hardening? Does work hardening affect materials at such a "small-scale" as sanding away tiny pieces of the material? [link] [comments]  |
| How do they search for patient zero? Posted: 11 Apr 2020 01:19 AM PDT I heard they are searching for the first patient of covid 19, but how exactly are they doing that? How do can one be 100% sure to have found patient 0? [link] [comments]  |
| Posted: 11 Apr 2020 07:44 AM PDT |
| Could seasonal influenza be reduced/eliminated at the same time as COVID-19? Posted: 10 Apr 2020 10:35 AM PDT Since a large part of the world is practicing social distancing, will this also reduce the seasonal influenza? Could we use this event as an opportunity to eliminate the flu as well as the coronavirus, i.e. could a future COVID-19 vaccine be paired with the current flu vaccine (since many people will likely seek the COVID-19 vaccine)? [link] [comments]  |
| Posted: 10 Apr 2020 11:41 PM PDT |
| What is the majority of the liquid in a flu shot? Posted: 11 Apr 2020 12:31 AM PDT Not anti vax or anything, just had a flu shot and wondered what the majority of the actual injected liquid was. Surely it's not all just virus and additives right? Some kind of saline solution maybe? Doc couldnt tell me (although I was in a rush) and I couldn't find much on google. [link] [comments]  |
| Posted: 11 Apr 2020 03:45 AM PDT |
| How can cities reach a covid 19 peak while we're social distancing? Posted: 10 Apr 2020 06:33 PM PDT How can cities reach a covid 19 peak while we're social distancing? Won't everything just explode once restrictions are lifted and things "get back to normal"? How can we ever return to normal?? [link] [comments]  |
| Posted: 10 Apr 2020 11:47 PM PDT I dont know much about magnetic fields, so sorry if the information I have in the question is incorrect. [link] [comments]  |
| Posted: 10 Apr 2020 11:32 AM PDT |
| Why we itch? What is the science behind it? Posted: 10 Apr 2020 08:02 PM PDT |
| What determines how long immunity would last? Posted: 10 Apr 2020 10:43 AM PDT Why does immunity against some viruses last for life and some just a few years (and needs a boost in case of vaccination)? What makes the difference? [link] [comments]  |
| Why hasn't COVID-19 slowed the rise of atmospheric C02? Posted: 10 Apr 2020 08:05 PM PDT Every website I look at shows data indicating an increase in C02 year-over-year for each month in 2020. I would have expected that with the limited industrial activity, reduced air traffic and many working from home instead of commuting; we might see a slight dip. Are we observing lag time in the reduction of C02 output and an appreciable change in atmospheric composition? Something else? [link] [comments]  |
| What makes Zoom (or other video conferencing software) a security risk? Posted: 10 Apr 2020 06:21 AM PDT I've done some brief searching and found that there was code that made Macs vulnerable. Other than that are the security concerns around having unwanted people in zoom chats? If someone gets into a zoom chat can they do something more malicious than posting inappropriate or racist things? [link] [comments]  |
| Why did the Smallpox vaccine work? Posted: 10 Apr 2020 02:23 PM PDT Why did it work when Cowpox and Smallpox are different viruses? [link] [comments]  |
| Posted: 09 Apr 2020 10:38 PM PDT Gold has a yellow color and copper is reddish-orange, but why are they the only metals that aren't silver or grey? [link] [comments]  |
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