Is bar soap a breeding ground for bacteria? |
- Is bar soap a breeding ground for bacteria?
- AskScience AMA Series: We're Event Horizon Telescope scientists with groundbreaking results on our own galaxy. Ask Us Anything!
- Is there anything really special about our sun that is rare among the universe?
- What is the storage capacity of the human brain?
- A meter is defined as the distance light would go in a vacuum at 1/299792458 of a second. Where did this number come from?
- There are many cases of species evolving to lose limbs for a snake-like bodyplan or losing other organs, is there any occasion where a species regains the use of a vestigial body part?
- Can children learn musical instruments like languages?
- What are long term side effects of tonsils removal ?
- Can decompression sickness cause pneumocephalus (air in the cranial cavity)?
- Safety of alternating (not directly mixing) bleach and other cleaners?
- What would happen if someone donated blood while having a cold?
- Why do volcanoes produce sulfur dioxide?
- Is it possible to send a missile to orbit like a satellite, and only launch at a ground target when needed?
- Why can't our eyes move smoothly as we scan across our field of view, but can move smoothly when focusing and tracking a moving object across our field of view?
- To what extend do animals have “culture” in the way that humans do?
- Does the atmosphere bulge at the equator like the land/water does?
- Do Americans suffer from seasonal allergies more then other nations/regions?
- Do any pre-industrial cultures use dental floss?
- Why is rust red as a powder but gray/silver in bulk (hematite)?
| Is bar soap a breeding ground for bacteria? Posted: 12 May 2022 10:10 AM PDT I'm tired and I need answers about this. So I've googled it and I haven't gotten a trusted, satisfactory answer. Is bar soap just a breeding ground for bacteria? My tattoo artist recommended I use a bar soap for my tattoo aftercare and I've been using it with no problem but every second person tells me how it's terrible because it's a breeding ground for bacteria. I usually suds up the soap and rinse it before use. I also don't use the bar soap directly on my tattoo. Edit: Hey, guys l, if I'm not replying to your comment I probably can't see it. My reddit is being weird and not showing all the comments after I get a notification for them. [link] [comments] |
| Posted: 12 May 2022 04:00 AM PDT Three years ago, we revealed the first image of a black hole. Today, we announce groundbreaking results on the center of our galaxy. We'll be answering questions from 1:30-3:30 PM Eastern Time (17:30-19:30 UTC)! The Event Horizon Telescope (EHT) - a planet-scale array of eleven ground-based radio telescopes forged through international collaboration - was designed to capture images of a black hole. As we continue to delve into data from past observations and pave the way for the next generation of black hole science, we wanted to answer some of your questions! You might ask us about:
Our Panel Members consist of:
If you'd like to learn more about us, you can also check out our Website, Facebook, Twitter, Instagram, and YouTube. We look forward to answering your questions! Username: /u/EHTelescope [link] [comments] |
| Is there anything really special about our sun that is rare among the universe? Posted: 12 May 2022 07:40 AM PDT There are systems with multiple stars, red and blue giants that would consume our sun for a breakfast, stars that die and reborn every couple of years and so on. Is there anything that set our star apart from the others like the ones mentioned above? Anything that we can use to make aliens jealous? [link] [comments] |
| What is the storage capacity of the human brain? Posted: 12 May 2022 10:51 AM PDT Do we have any estimate for how much a person can actually know? And what happens when they reach that limit? Does learning new things become impossible? Do older memories simply get overwritten? Or do things just start to get jumbled like a double-exposed piece of film? [link] [comments] |
| Posted: 12 May 2022 11:30 PM PDT The length of a meter is defined by the speed of light, and not the other way around. So where/why specifically did we divide a second by 299,792,458 segments and then measure the distance light traveled in a one of those segments and called it a meter? Where did 299,792,458 come from? [link] [comments] |
| Posted: 12 May 2022 06:50 AM PDT |
| Can children learn musical instruments like languages? Posted: 12 May 2022 10:01 AM PDT Parents often teach their children second languages during their critical period, but does the same principle apply to musical instruments? Do we have so many extremely talented young musicians because of their developmental period, or do the parents just push their children to their limits? [link] [comments] |
| What are long term side effects of tonsils removal ? Posted: 12 May 2022 05:52 AM PDT |
| Can decompression sickness cause pneumocephalus (air in the cranial cavity)? Posted: 11 May 2022 07:37 PM PDT |
| Safety of alternating (not directly mixing) bleach and other cleaners? Posted: 12 May 2022 11:18 AM PDT If bleach is used to sanitize, say, a bathroom, is there any practical risk to using other cleaners on the same surfaces shortly after? e.g. bleach is used to clean a bathroom counter, and Windex is used to spray the mirror above in the same cleaning session where some spray is likely to hit the counter; or a shower is cleaned with a bleach solution, and next day a citric acid-based daily shower spray is used on the same surfaces. I'm assuming there's going to be some residual bleach, for some period of time after using it to clean. But I have no idea what amount would produce enough fumes to be dangerous. [link] [comments] |
| What would happen if someone donated blood while having a cold? Posted: 11 May 2022 09:08 PM PDT Would the blood be 'tainted'? Could it potentially get someone sick? Asking out of curiosity all I could find online is "don't donate until one week free of symptoms". [link] [comments] |
| Why do volcanoes produce sulfur dioxide? Posted: 11 May 2022 09:08 PM PDT Evidently there is sulfur and oxygen in magma and it combines to form SO2. What magma chemistry leads to this being a primary constituent of volcanic eruptions? [link] [comments] |
| Posted: 11 May 2022 06:48 PM PDT |
| Posted: 11 May 2022 10:35 AM PDT Try this experiment: film your face with your phone as you look to the side and try to move your eyes smoothly across the screen. You can't. All you'll see is saccadic eye movement (rapid little darts in eye position). Next, hold your finger behind your phone and focus on it while you move your finger from one side to the other. You'll see that your eyes move perfectly smooth while they track your finger. Why is this the case? I can already imagine evolutionary motivations for it: when we look out into our environment, we are performing visual search so rapid, darting eye movements are good for snapping from one area of interest to another. But, when tracking a moving object of interest (such as prey) it is important to be able to smoothly fixate on it. But my question is, do we know the cortical or neuromuscular mechanisms involve in this? Is there some sort of reflex involved? [link] [comments] |
| To what extend do animals have “culture” in the way that humans do? Posted: 11 May 2022 01:02 PM PDT Humans are very culturally different across the globe. They learn different things from their culture, then think and act a certain way because of what they've learned and how they were raised. Are there any examples of animals who have similarly profound cultural differences based on where they are from? [link] [comments] |
| Does the atmosphere bulge at the equator like the land/water does? Posted: 11 May 2022 11:48 AM PDT |
| Do Americans suffer from seasonal allergies more then other nations/regions? Posted: 11 May 2022 12:50 PM PDT I was thinking about this between delicious sneezing episodes. Anecdotal, but I know immigrants who claim they've never had issues with pollen in their home countries but after arriving here they suddenly started succumbing to Big Pollen. What gives? Side note, the people I've asked have been mainly from warmer countries [link] [comments] |
| Do any pre-industrial cultures use dental floss? Posted: 11 May 2022 10:49 PM PDT My dentist is mad about the stuff, reckons if I can only do one I should floss rather than brush. Good way to stop teeth decay. But what do First Nations culture use if they don't have plastic? [link] [comments] |
| Why is rust red as a powder but gray/silver in bulk (hematite)? Posted: 11 May 2022 09:27 AM PDT At first I presumed it was because they were polymorphs, but that doesn't seem to be the case. It also doesn't seem to be a result of particle size (i.e. like maybe only nanoscale particles appear red). What's going on here? [link] [comments] |
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