What makes gold so much more malleable than other metals? |
- What makes gold so much more malleable than other metals?
- Why is Supercritical Water Non-Polar?
- Can you actually tell the difference between artificial gravity generated by centrafugal force of a space station vs real gravity?
- I recently read in my anatomy textbook that recent studies have found that there is no correlation between cholesterol in the diet and serum cholesterol levels. How did we get this wrong for so many years and what causes high serum cholesterol then?
- Why can't bacteriophages infect eukaryotic cells?
- Why do low pressure areas form at warm places if pressure is directly proportional to temperature?
- How does ethanol in E-diesel reduce tailpipe emissions in vehicles?
- What is particle X17?
- Can someone explain displacement current?
- Can the stimulation of different senses from the same source improve the clarity of said source?
- How does grain growth work?
- How did we discover the amount of ATP and NADH that are made from cellular respiration?
- Would you find less fungal spores in the air during colder temperatures compared to warmer temperatures?
- Why is carbon in the soil important for plant growth if plants get their carbon from atmospheric carbon dioxide?
- If cracking our knuckles are air bubbles escaping the joints, then where does that air come from and where does it go?
- How does satellite communication work in space?
- Is the tangent basis and dual basis always orthogonal?
- How does our body deals or tries to deal with toxic substances such various poisons and specifically heavy metals?
- What is the maximum amount of atmospheric pressure a human can withstand?
| What makes gold so much more malleable than other metals? Posted: 09 Dec 2019 10:42 PM PST Gold is extremely ductile and malleable. One gram of gold can be stretched into a microwire hundreds of meters long. Low-tech traditional "gold hammering" readily produces gold leaf that is just a few thousands of atoms thick. This doesn't seem to be possible with most other metals. What is it that gives gold its high malleability? [link] [comments]  |
| Why is Supercritical Water Non-Polar? Posted: 09 Dec 2019 01:22 PM PST Edit and Answer Based off the Comments: The individual molecules of water in SCW are still polar. However, in bulk, SCW behaves as if it is non-polar. This is likely (not 100% certain) because with the increased kinetic energy of the molecules, the effect of hydrogen bonding is weakened. Furthermore, the molecules may conglomerate in ways that cancel out the individual molecules' dipoles. Ultimately though, there is still more research needed on this topic. Thank you to everyone who answered and commented. I really appreciate it. Happy Holidays! [link] [comments]  |
| Posted: 10 Dec 2019 04:29 AM PST If you are on a space station generating 9.8 m/s² by spinning, is there going to be any instinctual or tactile difference that would enable you to tell that it is artificial gravity if you close your eyes [link] [comments]  |
| Posted: 09 Dec 2019 09:15 PM PST |
| Why can't bacteriophages infect eukaryotic cells? Posted: 10 Dec 2019 03:09 AM PST I've wondered this for a while but never been able to find an answer. [link] [comments]  |
| Why do low pressure areas form at warm places if pressure is directly proportional to temperature? Posted: 10 Dec 2019 02:54 AM PST |
| How does ethanol in E-diesel reduce tailpipe emissions in vehicles? Posted: 09 Dec 2019 10:14 PM PST |
| Posted: 10 Dec 2019 02:48 AM PST |
| Can someone explain displacement current? Posted: 09 Dec 2019 05:48 PM PST I am having trouble with the basic concepts of displacement current and what it exactly is. I cannot find a solid explanation I truly grasp on the internet or in my ohysics book. [link] [comments]  |
| Can the stimulation of different senses from the same source improve the clarity of said source? Posted: 09 Dec 2019 06:35 PM PST I was doing some reading on the Argus II retinal prosthesis, and out of curiousity I was wondering. If, while the user sees an object with the Argus, and they also receive a stimulus from a video to audio device/software, does that somehow improve the image resolution or general perception in the brain of the user as opposed to if they just had the Argus alone? So basically adding an audio component to do some sensory substitution to somehow overlay two inputs to create and overall inproved perception. Is there research on this topic? [link] [comments]  |
| Posted: 10 Dec 2019 01:58 AM PST Just like the title say. How does it work? I couldnt find any useful or direct answers about it. [link] [comments]  |
| How did we discover the amount of ATP and NADH that are made from cellular respiration? Posted: 09 Dec 2019 03:18 PM PST Basically the title but how does one discover that, yes, glycolysis creates a net of 2 ATP and 2 NADH and some for the Citric acid Cycle? Do we just isolate each reaction separately? I feel that would be hard too. [link] [comments]  |
| Posted: 09 Dec 2019 02:29 PM PST I work in the environmental field and unfortunately due to situations at my work place, I have no one to ask this that would know/couldn't find an answer on google. I recently did some air monitoring and I am suspicious about the results I got. My ambient/outdoor spore counts seem extremely low. I looked at some results that I did in October and the results I got back from the beginning December. The Oct test gave a count of over 5000 spores while the December result gave a count of around 60. The only thing I can think that would be different is the air temperature. It was a warmer day in the October testing, while the December testing would have been below freezing on and before the date. Would this lower spore count be due to the below freezing weather? I didn't have to take many biology type classes for my degree so this stuff is a bit of an unknown for me. The only other thing I can think of would be something was wrong with my pump. [link] [comments]  |
| Posted: 09 Dec 2019 07:33 PM PST The biological molecules of plants are mostly composed of carbon, an element that is acquired from carbon dioxide in the air. Plants also need a series of macronutrients (nitrogen, phosphorus, potassium), other micronutrients (zinc, iron, manganese, etc.), and water, which is all acquired from the soil. Why then is carbon in the soil important for plant growth? What function does having a good amount of organic matter in the soil provide for the plant (with a large amount of soil carbon) that is not otherwise provided by a soil with no organic matter but highly fertilized with all necessary macronutrients and micronutrients? After all, the carbon in the soil is not "absored" by the plant, as that carbon is already acquired from atmospheric carbon dioxide, right? [link] [comments]  |
| Posted: 09 Dec 2019 04:46 AM PST Are we just constantly popping the same air bubbles in our fingers, or is the air coming from reactions within our body? I have nowhere to start on this question and pondering it is grossing me out so a concrete answer would be nice! [link] [comments]  |
| How does satellite communication work in space? Posted: 09 Dec 2019 01:23 PM PST So I understand we communicate with satellites via radio waves. But in the vacuum of space, what particles do the transmitters emit, and then, doesn't the spacecraft lose mass in sending a signal? [link] [comments]  |
| Is the tangent basis and dual basis always orthogonal? Posted: 09 Dec 2019 10:54 AM PST It seems like they must be because one is tangent to surfaces and the other are orthogonal to the surfaces. However, Mike Guidry writes, "However, for non-orthogonal coordinate systems the two bases generally are not equivalent and the distinction between upper and lower indices is relevant." [link] [comments]  |
| Posted: 09 Dec 2019 02:11 PM PST For example, it is said that phagocytes ingest various foreign particles within our body. Does that include toxic substances? When we know what lethal dose is, does that mean that generally speaking anything lower is somehow "dealt" with, or do these substances freely circulate within our body on their own? [link] [comments]  |
| What is the maximum amount of atmospheric pressure a human can withstand? Posted: 09 Dec 2019 04:16 AM PST Title. Wondering if there is a measure of how much pressure a human can take before getting harmed. [link] [comments]  |
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