Why some south american plants produce curare alkaloids, if those alkaloids are not absorbed via GI route and are only effective via parenteral injection? |
- Why some south american plants produce curare alkaloids, if those alkaloids are not absorbed via GI route and are only effective via parenteral injection?
- Why do we experience no sort of gag reflex when we are swallowing food or a drink?
- Why is a peanut allergy much more common than say, an apple allergy, and why is a peanut allergy much more deadly than other allergies?
- How are the amounts of contents in food measured on the Nutrition Facts?
- Can we and how do we determine if a sound is produced in front or behind us?
- How does the harm of electromagnetic radiation depends on the types of electromagnetic radiation?
- If the sun exploded, would we notice the light first or the gravity/momentum shift?
- Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science
- I know that lines of magnetic induction never terminate, but can they form knots? If so, is it physically interesting somehow?
- Why does dew not condense on items under a cover?
- How does humidity affect smell?
- How does Sevoflurane work? Does it affect memory permanently? What functions of the brain are subdued?
- Will water freeze if it can't expand?
- What has humanity done to protect against large coronal mass ejections (CMEs) and solar flares?
- can objects lose or gain energy through smell?
- Can enough gravity crush an atom?
- What does the microwave (oven) do differently when heating normally vs defrost mode?
- What's responsible for the strange weather in the Northeastern US the last few days?
- Why does π come in integrals of Gaussian curves ?
- What do we actually see when we look at the cosmic microwave background?
- Is white a lack of colors or so many colors our mind can’t process it?
- If there is energy coming to Earth from the sun's radiation, and leaving it from heat that radiates out from the planet into space, what is the net change over time? Is it perfectly balanced, or does the Earth cool down/heat up over a long enough timeline?
| Posted: 25 Jul 2018 05:30 AM PDT |
| Why do we experience no sort of gag reflex when we are swallowing food or a drink? Posted: 24 Jul 2018 08:37 AM PDT |
| Posted: 25 Jul 2018 07:53 AM PDT |
| How are the amounts of contents in food measured on the Nutrition Facts? Posted: 25 Jul 2018 05:07 AM PDT For instance, how is sodium and cholesterol accurately calculated for a vanilla cone or pancake batter? Even if it were as simple as adding the amounts from the ingredients, how would it be measured from the ingredients? [link] [comments]  |
| Can we and how do we determine if a sound is produced in front or behind us? Posted: 24 Jul 2018 07:03 PM PDT Obviously we can tell if a sound is on either side of us, but can we - without visual aid - tell if it's in front, behind, above or below us? If so, how? [link] [comments]  |
| How does the harm of electromagnetic radiation depends on the types of electromagnetic radiation? Posted: 25 Jul 2018 12:46 AM PDT I know it's common sense but I can't get my head around the Physics behind it. [link] [comments]  |
| If the sun exploded, would we notice the light first or the gravity/momentum shift? Posted: 24 Jul 2018 08:55 PM PDT To my understanding nothing goes faster than light, but wouldn't we notice our momentum shifting pretty quickly? [link] [comments]  |
| Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science Posted: 25 Jul 2018 08:12 AM PDT Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Physics, Astronomy, Earth and Planetary Science Do you have a question within these topics you weren't sure was worth submitting? Is something a bit too speculative for a typical /r/AskScience post? No question is too big or small for AAW. In this thread you can ask any science-related question! Things like: "What would happen if...", "How will the future...", "If all the rules for 'X' were different...", "Why does my...". Asking Questions: Please post your question as a top-level response to this, and our team of panellists will be here to answer and discuss your questions. The other topic areas will appear in future Ask Anything Wednesdays, so if you have other questions not covered by this weeks theme please either hold on to it until those topics come around, or go and post over in our sister subreddit /r/AskScienceDiscussion , where every day is Ask Anything Wednesday! Off-theme questions in this post will be removed to try and keep the thread a manageable size for both our readers and panellists. Answering Questions: Please only answer a posted question if you are an expert in the field. The full guidelines for posting responses in AskScience can be found here. In short, this is a moderated subreddit, and responses which do not meet our quality guidelines will be removed. Remember, peer reviewed sources are always appreciated, and anecdotes are absolutely not appropriate. In general if your answer begins with 'I think', or 'I've heard', then it's not suitable for /r/AskScience. If you would like to become a member of the AskScience panel, please refer to the information provided here. Past AskAnythingWednesday posts can be found here. Ask away! [link] [comments]  |
| Posted: 25 Jul 2018 01:29 AM PDT |
| Why does dew not condense on items under a cover? Posted: 24 Jul 2018 01:57 PM PDT Living in an area that has high humidity, it's not unusual to come out in the morning to go to work and have a car that's covered in condensation from the temperature variation overnight. That led me to a question that I can't quite find the answer to: why do I not get condensation on the items in my (uninsulated) garage? Or, if if a vehicle is parked under a carport cover, why does that prevent condensation? [link] [comments]  |
| How does humidity affect smell? Posted: 25 Jul 2018 06:33 AM PDT Couldn't pick the flair between physics, chemistry, biology, and human body. [link] [comments]  |
| Posted: 24 Jul 2018 07:59 PM PDT |
| Will water freeze if it can't expand? Posted: 24 Jul 2018 10:02 AM PDT I know that water is essentially incompressible, and actually expands by ~10% when it freezes. But what if it's not allowed to do that? Like, imagine I had a watertight container made of steel, or some other material that's sturdy enough to not buckle under the force of expanding water. What if I filled it to the brim with water, sealed it shut, welded the seams for good measure, and stuck it in the freezer? I know that the reason Earth's inner core is solid is because the pressure created by the entire planet's mass pressing down on it is so strong that it prevents the core from melting. Would the same principle apply to the water in my container and keep it mostly liquid? Or would I get some weird and exotic form of ice? Does the answer depend on how cold my freezer is? [link] [comments]  |
| What has humanity done to protect against large coronal mass ejections (CMEs) and solar flares? Posted: 24 Jul 2018 11:13 AM PDT I've recently read about the dangers they pose to our electricronics and I'm curious as to how screwed we'd be [link] [comments]  |
| can objects lose or gain energy through smell? Posted: 25 Jul 2018 01:22 AM PDT like, objects can release energy through noise in the form of decibels. is there a specific unit smell is measured with to calculate the energy loss/gain into or out of an object? [link] [comments]  |
| Can enough gravity crush an atom? Posted: 25 Jul 2018 01:21 AM PDT Can enough gravity crush an atoms electrons into its core? How small could an atom get this way? [link] [comments]  |
| What does the microwave (oven) do differently when heating normally vs defrost mode? Posted: 24 Jul 2018 11:16 AM PDT |
| What's responsible for the strange weather in the Northeastern US the last few days? Posted: 24 Jul 2018 12:26 PM PDT I'm in Philadelphia. We usually have a westerly wind with relatively predictable weather patterns this time of year, with storms corresponding to cold fronts moving along the direction of the jet stream. Occasionally we'll get a storm of tropical origin that moves up the coastline. Lately, for three or four days, there have been scattered storms moving from southeast to northwest. It doesn't seem to be a tropical storm, just a long line of storms traveling in an unusual direction. Can anyone explain? [link] [comments]  |
| Why does π come in integrals of Gaussian curves ? Posted: 24 Jul 2018 09:30 AM PDT |
| What do we actually see when we look at the cosmic microwave background? Posted: 24 Jul 2018 11:42 AM PDT I was thinking about the cosmic microwave background and the earliest stars and how far we can see, and it occured to me, that if the CMB is the oldest and farthest thing we can see and looking as far as we can into the night sky is like looking into the past of the universe's history then are we basically looking at the relic radiation of some of the particles that we are made of? If that is the case, does that mean that we could basically see every intermediate step of star formarion etc. up to the point where our own star is forming in a gas cloud, given that we look at the right spot and the right distance (e.g. 13bly, 10bly, 7bly etc. away)? Or am I understanding something fundamentally wrong? [link] [comments]  |
| Is white a lack of colors or so many colors our mind can’t process it? Posted: 24 Jul 2018 08:10 PM PDT |
| Posted: 24 Jul 2018 07:48 AM PDT |
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