What happens to the 0.01% of bacteria that isnt killed by wipes/cleaners? Are they injured or disabled? |
- What happens to the 0.01% of bacteria that isnt killed by wipes/cleaners? Are they injured or disabled?
- Will a conductive material attached to a insulating material (Like a copper plate attached to a glass plate) have a thermal conductivity equal to one of the materials, or an average?
- Is cancer actually more common today in developed countries or are other causes of death just not as prevalent anymore?
- How does the diameter and width of a wheel affect the ability of it to move on a soft surface such as sand?
- How does fabric softener work?
- Why does rain fall in varying-size drops? Why is it not a uniform droplet size?
- What do people here mean with "laws of physics start breaking down"?
- At what speed does 2 deuterium nucleus has to collide for them to fuse into Helium-4?
- According to the theory of relativity, do all observers agree on causality?
- How can electrical charge be detected in ionic solutions?
- Does the smoke from forest fires meaningfully block UV rays?
- Do people aboard the ISS experience astro-intestinal problems?
- What can you tell about a person from a DNA test?
- How much C02 is released during a forest fire?
- If two points determine a line, two parallel or intersecting lines determine a plane, then does two parallel or intersecting planes determine 3d space?
- Has a gravity assist/swing-by to pick up speed ever been done using the Earth itself? Could it help send probes to Venus and/or Mars?
- Why hasn’t London been able to reduce its NO2 levels?
- So I’ve seen posts asking about disease caused by cannibalism among humans and a few other animals, but is it common for other species to engage in cannibalism?
- Is Lightening a Threat to Airplanes?
- Why do solar panels installed diagonal to the ground and not vertically facing the sun?
- Is astronomy a predominantly western study? Are there any stars/planets/phenomenon discovered and named by Arabic/Eastern cultures?
- Is it possible the Bootes Void is void of planets because an advanced civilisation(s) harvested them all?
- How does hurricane modeling provide prediction on storm path?
- What does the amount of blades do for a airplane or helicopter?
| Posted: 21 Aug 2018 05:41 PM PDT |
| Posted: 22 Aug 2018 07:09 AM PDT As an example, if I bake cookies in a pan that consists of a bottom made of a typical metal sheet pan and a top made up of glass, with the cookies sitting on the glass, would the cookies bake the same as if they were in a glass pan? [link] [comments]  |
| Posted: 21 Aug 2018 12:19 PM PDT Hi, it seems like the prevalence of cancer today is relatively high in developed countries. I don't have any figures but historically I'm not aware of it being a leading cause of death, whereas 3 of the top 10 causes of death in high income countries are related to cancer, according to the WHO. Is cancer actually becoming more common in developed societies due to pesticides, processed foods, air pollution, sedentary lifestyles etc. or are we simply eliminating other diseases which historically would have killed people at a younger age, and because people are living longer they are more likely to develop cancer over time? I'm not sure it's possible to answer this (unsure how reliable historical data relating to cause of death are, and also not sure how it would be possible to assess whether the child of a medieval peasant would have developed cancer later in life had they not died of childhood diseases), but if anyone has any insight into this I'd be really grateful! [link] [comments]  |
| Posted: 22 Aug 2018 06:16 AM PDT |
| How does fabric softener work? Posted: 22 Aug 2018 07:35 AM PDT |
| Why does rain fall in varying-size drops? Why is it not a uniform droplet size? Posted: 22 Aug 2018 06:35 AM PDT Sorry to sound like Forrest Gump, but why is there itty bitty stinging rain and big ole fat rain in the same temperate climate? Thank you for any answers you have. [link] [comments]  |
| What do people here mean with "laws of physics start breaking down"? Posted: 21 Aug 2018 10:47 PM PDT Are they talking about the laws of physics as we know them start being incorrect and faulty or is it physics itself becoming unpredictable and weird like in a blackhole? [link] [comments]  |
| At what speed does 2 deuterium nucleus has to collide for them to fuse into Helium-4? Posted: 22 Aug 2018 12:42 AM PDT |
| According to the theory of relativity, do all observers agree on causality? Posted: 21 Aug 2018 08:51 PM PDT This is a question that I posed to my astronomy 101 teacher, but I don't think she understood my question. So, as I've heard relating to the theory of relativity, if observer A is on Earth, and observer B goes at ½c to the nearest star and back, observer B will have experienced far less time than observer A. But that's from the perspective of observer A. From the perspective of observer B, observer A is receding at ½c away from them, and so observer A should be experiencing less time. How is this resolved within the theory, or am I just not getting it? [link] [comments]  |
| How can electrical charge be detected in ionic solutions? Posted: 22 Aug 2018 12:38 AM PDT So today, I have a very complex question I need possible answers for, or to just brainstorm with other people on. Background: So, dissolved solutions with ions, such as saltwater which we will use here, are proven to be great conductors; this is because when an electrical current is produced in salt water, the sodium and chlorine ions form bridge like paths that carry electrons. My Question; Here is what I need help with; I need to know how to pick up these electrons from, let's say, salt water. Now normally this would be easy; a signal could easily be read say if lighting struck salt water. But here's the catch. I need to detect (or notice the presence of electrons) electrical currents at voltages in the nanovolt region without touching the item which is producing the voltage. In other words, I want to be able to detect the present of nanovolts in salt water in order to run them trough an amplifier to get readings for data, so images sticking a machine in a tank of salt water with a machine producing nanovolts in it and getting a reading on the magnitude of the voltage. Currently, I have thought about using slightly charged chemicals which could take up the free electrons and produce a chemical signal or something like that. I also don't want to spend to much money. I would love to hear peoples suggestions, it would really help me! -Mbio [link] [comments]  |
| Does the smoke from forest fires meaningfully block UV rays? Posted: 21 Aug 2018 08:47 PM PDT |
| Do people aboard the ISS experience astro-intestinal problems? Posted: 21 Aug 2018 05:11 PM PDT |
| What can you tell about a person from a DNA test? Posted: 21 Aug 2018 04:53 PM PDT I'm thinking about getting one some time in the future. I'm curious how it works, and I want to know as much as practically possible. I'm guessing there's thousands of things, but as far as what you're told, what is there? [link] [comments]  |
| How much C02 is released during a forest fire? Posted: 21 Aug 2018 08:55 PM PDT Take the current forest fires in California at present for example. [link] [comments]  |
| Posted: 21 Aug 2018 06:16 PM PDT |
| Posted: 21 Aug 2018 05:43 PM PDT |
| Why hasn’t London been able to reduce its NO2 levels? Posted: 21 Aug 2018 02:13 PM PDT As shown by this graph, many cities across the globe have gradually reduced their NO2 emissions over the past 20 years. However, there are multiple outliers. In particular, London is demonstrating a slight upward trend in emissions. Why hasn't London been able to reduce it's NO2 emissions like other comparable cities. [link] [comments]  |
| Posted: 21 Aug 2018 12:32 PM PDT Are there many species which are NOT affected negatively by cannibalism, and if so, do any of those carnivorous/omnivorous species actively or willingly engage in cannibalism? [link] [comments]  |
| Is Lightening a Threat to Airplanes? Posted: 21 Aug 2018 04:36 PM PDT Living near an airport, I see a lot of planes fly into storm clouds and it has me wondering - what's stopping these giant metal tubes from being struck by lightening? [link] [comments]  |
| Why do solar panels installed diagonal to the ground and not vertically facing the sun? Posted: 21 Aug 2018 01:42 PM PDT |
| Posted: 22 Aug 2018 02:55 AM PDT |
| Posted: 21 Aug 2018 09:12 PM PDT |
| How does hurricane modeling provide prediction on storm path? Posted: 21 Aug 2018 12:13 PM PDT Whether a hurricane will angle left or right as it proceeds? Or continue straight? When a hurricane departs much from a predicted path, is that considered highly aberrant? [link] [comments]  |
| What does the amount of blades do for a airplane or helicopter? Posted: 21 Aug 2018 03:20 PM PDT |
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