Why doesn't the immune system kill incoming sperm? |
- Why doesn't the immune system kill incoming sperm?
- Would gravitational waves be a suitable replacement for RF in communications in the distant future?
- Why does spicy food clear sinuses and cause perspiration?
- What happened to US presidential election voter turnout between 1896 and 1920?
- Pleochroism vs Birefringence, same or different?
- How long would it take to brute force the encrypted iPhone that the FBI wants Apple to decrypt?
- What happens to radioactive elements when they're cooled to near absolute zero / super heated into a plasma?
- Does the Cosmic Microwave Background increase the lowest measurable temperature ?
- Why doesn't the human body reject new blood (i.e. from transfusions) in the same way that it often rejects new organs?
- What are the differences between alpha particles and helium nuclei?
- Why does 1-propanol has higher boiling point than 2-propanol?
- When I'm in an area with "spotty" phone/data service and my signal goes in and out even though I'm keeping my phone perfectly still, what is happening? Are the radio waves moving around randomly like the wind?
- Do gravitational waves stretch time like they do space?
- I am a resident of Miami, Florida and my mom is convinced the entire city will be underwater in 25 years. While I know this is false I don't have any evidence to back up my claim. Can someone knowledgeable on the subject tell me why this is false and at what time Miami will be underwater?
- How do scientists compare animal intelligence to their equivalents in human children at certain ages?
- What neurological differences are there in a crow's brain that allow it to have such high intelligence for its size?
- If the sum of all natural numbers is -1/12, what is the sum of all negative whole numbers to negative infinity?
- Do black holes and hurricanes/vortexes look similar mathematically?
- Do black holes exist or not?
- In our solar system, are the distances of planets from the sun random or is there a mechanism at work like in the electron shells?
| Why doesn't the immune system kill incoming sperm? Posted: 19 Feb 2016 03:42 PM PST |
| Would gravitational waves be a suitable replacement for RF in communications in the distant future? Posted: 20 Feb 2016 06:15 AM PST |
| Why does spicy food clear sinuses and cause perspiration? Posted: 19 Feb 2016 08:06 PM PST I saw somebody else had asked this question a long time ago, but that answer didn't feel satisfactory, especially since I'm now studying in the Biomedical Engineering field. Does the capsaicin bind to a receptor that induces sweating? [link] [comments]  |
| What happened to US presidential election voter turnout between 1896 and 1920? Posted: 19 Feb 2016 10:47 AM PST |
| Pleochroism vs Birefringence, same or different? Posted: 19 Feb 2016 03:03 PM PST TLDR: What's the difference? I learned a new word recently from the Skeptic's Guide to the Universe podcast; pleochroism. I am a lab tech in a hospital lab. We perform crystal exams on synovial fluid. In our procedures we call the crystals birefringent if, under polarized light, they display a different color when oriented parallel than perpendicular to the axis of the light source. MSU crystals are blue when perpendicular to the axis while they are yellow when parallel. This seems to be more like pleochroism than birefringence. Clarify it for me. [link] [comments]  |
| How long would it take to brute force the encrypted iPhone that the FBI wants Apple to decrypt? Posted: 19 Feb 2016 04:57 PM PST Setting aside legal or moral debate and just speaking straight cryptology/computer science, is it possible to decrypt that phone in a reasonable amount of time? [link] [comments]  |
| Posted: 20 Feb 2016 04:19 AM PST |
| Does the Cosmic Microwave Background increase the lowest measurable temperature ? Posted: 20 Feb 2016 05:44 AM PST We know the Cosmic Microwave Background has a temperature of 2.7 Kelvin ...Does that mean that the lowest measurable temperature is -273.15 °C or -275.85 °C but we can't actually create the latter ? And if we can cool below the CMB temperature, how do we do it ? Can there be naturally occuring temperatures lower than CMB ? [link] [comments]  |
| Posted: 19 Feb 2016 12:19 PM PST |
| What are the differences between alpha particles and helium nuclei? Posted: 19 Feb 2016 10:00 AM PST |
| Why does 1-propanol has higher boiling point than 2-propanol? Posted: 19 Feb 2016 11:35 AM PST They have the same intermolecular forces, but their molecular structure is different. [link] [comments]  |
| Posted: 18 Feb 2016 08:47 AM PST |
| Do gravitational waves stretch time like they do space? Posted: 19 Feb 2016 09:28 AM PST If so can this be measured? Would a gravitational wave change the rate at which atoms like cesium vibrate? Physics [link] [comments]  |
| Posted: 19 Feb 2016 09:01 AM PST |
| Posted: 19 Feb 2016 07:01 AM PST I've read many times that Border Collies are potentially as smart as 4-year-old kids, dolphins are compared similarly, etc. [link] [comments]  |
| Posted: 19 Feb 2016 05:26 AM PST |
| Posted: 19 Feb 2016 12:36 PM PST I saw a video of a proof that the sum of all natural numbers from 1 to infinity was -1/12 and it blew my mind, so it made me think what the sum of all negative whole numbers to negative infinity would be. Is it the same analogous result or + 1/12? [link] [comments]  |
| Do black holes and hurricanes/vortexes look similar mathematically? Posted: 19 Feb 2016 06:53 AM PST I was looking a picture of a vortex and realized visually, black holes and vortexes look identical. Does the math share this similarity? Do the equations found in transport phenomena and fluid mechanics have similarities with the ones we used to predict black holes? [link] [comments]  |
| Posted: 19 Feb 2016 07:50 AM PST Hi everybody! After seeing a lot of "black holes related questions" in AskScience I remebered reading articles back in 2014 which said that someone proved mathematically that black holes can not form and do not exist. So what is true about that? Do black holes exist or not? Articles I've meant: http://phys.org/news/2014-09-black-holes.html And this is (I believe) the paper: http://www.sciencedirect.com/science/article/pii/S0370269314006686 Disclaimer: I'm no native speaker, sorry if there are any mistakes. EDIT: format [link] [comments]  |
| Posted: 19 Feb 2016 08:22 AM PST |
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