If you had a pinhole camera with an aperture that only let one photon in at a time- what would its pictures look like? |
- If you had a pinhole camera with an aperture that only let one photon in at a time- what would its pictures look like?
- Would it have been possible to watch Neil Armstrong on the moon through a telescope?
- My 5-year-old wants to know: What would happen if a giant ball of water even bigger than the sun ran into the sun?
- If the "vacuum of space" is really a very thin distribution of gasses and dust, are areas near stars and other gravity wells notably thinner?
- Why don't seeds germinate whilst inside ripe fruit?
- Why does cornstarch make soups and sauces thicker?
- How do we know how far away and across galaxies and other space objects are?
- Temperature is the average kinetic energy of a substance's molecules, so does a substance's temperature increase if its translational speed—and thus translational kinetic energy—increases?
- Could a bright enough light shine through metal?
- How do IR thermometers work? Or more specifically, do they guess the emissivity of what they are measuring?
- Birth rate seems to be inversely related to wealth and resource availability. Does this phenomenon occur in non-human species? Is there a biological(i.e. hormonal) influence behind it?
- Why does hair loss always begin from the top region of the head?
- Because they look similar, are okras and chilies more genetically similar than, say, chilies and potatoes?
- How did Hawaii's current vegetation get there?
- If all the mass of the universe was distributed evenly, would space still be a vacuum?
- How do cuckoo chicks know to remove host eggs after just hatching from their egg?
- If you gathered all the particles in the intergalactic space between the Milky Way and Andromeda, would you have enough to form a star?
- Why does liquid arranged themselves in a certain pattern when they freeze and not stay random as they are in their fluid state?
- Why do humans perceive that more massive objects should fall faster than less massive objects?
- [Linguistics] Is it simply because linguists haven't been able to discover the reason yet so they say the relationship between a signifier and the signified is mostly arbitrary except for the onomatopoeia words?
- Ignoring wind, how much of an effect could rainfall have on the range of football kick?
- How does a ribosome understand which exact protein goes with a corresponding codon?
- Why do so many things in nature manifest themselves in the form of waves? E.g photons, sound, electrons
| Posted: 25 Dec 2016 08:53 AM PST |
| Would it have been possible to watch Neil Armstrong on the moon through a telescope? Posted: 25 Dec 2016 09:18 PM PST |
| Posted: 25 Dec 2016 06:56 PM PST |
| Posted: 25 Dec 2016 08:46 AM PST |
| Why don't seeds germinate whilst inside ripe fruit? Posted: 25 Dec 2016 09:39 PM PST Like a tomato. You never see the seeds inside germinating while inside the wet moist tomato environment. [link] [comments]  |
| Why does cornstarch make soups and sauces thicker? Posted: 25 Dec 2016 02:15 PM PST |
| How do we know how far away and across galaxies and other space objects are? Posted: 25 Dec 2016 06:13 PM PST For the pillars of creation for example, we estimate it is 6500-7000 light years away. What method are they using to make that estimate. Also how do we estimate(or know) the size of these things? [link] [comments]  |
| Posted: 25 Dec 2016 05:58 PM PST For example, when a pitcher throws a baseball, he increases the ball's translational kinetic energy. Neglecting the affects that drag force has on the ball, does the combined affect of the molecules' translation and vibration cause them to become 'hotter?' [link] [comments]  |
| Could a bright enough light shine through metal? Posted: 25 Dec 2016 12:29 PM PST So, light waves can be either absorbed or reflected by a material, or can go through a material. However, no material reflects or absorbs 100% perfectly. At least a few photons will go through (correct?). Anyway, say I write a message on a white piece of paper, and cover it with a black piece of paper. I can't see the message anymore, but if I went in a dark room and shined a light under it I could. If I did the same thing but covered the message with aluminum foil, it wouldn't work. What if I bought one of these expensive flashlights with thousands of lumens, would it work then? Is there any amount of light that would make it possible to see through the aluminum foil? Or a different wavelength of light? Somehow "x-ray" it? [link] [comments]  |
| Posted: 25 Dec 2016 02:25 PM PST Since real objects aren't ideal black bodies how does the IR thermometer measure temperature? [link] [comments]  |
| Posted: 25 Dec 2016 07:32 PM PST |
| Why does hair loss always begin from the top region of the head? Posted: 25 Dec 2016 02:33 PM PST Why does pattern hair loss in men particularly seems to always start from the same region, top of the head, and never from the sides? [link] [comments]  |
| Posted: 25 Dec 2016 06:12 PM PST My friend was saying that okra and Chili are pretty much the same due to them looking so similar. I said I thought they were dissimilar but had no proof. How much does look matter when talking about genetic similarity? Thanks!! <3 [link] [comments]  |
| How did Hawaii's current vegetation get there? Posted: 25 Dec 2016 02:08 PM PST Based on my knowledge of how islands are formed (lava escapes through faults in Earth's continental plates, and cools down after contact with water), Hawaii would have been very bare at one point. I am imagining a small island similar to what is in this picture (https://imgur.com/a/24qZs). My question is, how did Hawaii turn into the lush archipelago it is today? How did all of the plantlife that exists there, get there, if it was at one point bare and isolated from everywhere else. All of the trees and small plants couldn't have evolved and converged to become so similar (I doubt it), and I can't see how the DNA of any of the trees/plants would be transported to an isolated island chain otherwise. [link] [comments]  |
| If all the mass of the universe was distributed evenly, would space still be a vacuum? Posted: 25 Dec 2016 02:08 PM PST |
| How do cuckoo chicks know to remove host eggs after just hatching from their egg? Posted: 25 Dec 2016 01:55 PM PST Are there any other species that take on such tasks at 'an early age'? [link] [comments]  |
| Posted: 25 Dec 2016 11:40 AM PST I know intergalactic space is very sparse, but it is also very vast. Would you have enough between say Milky Way and Andromeda? [link] [comments]  |
| Posted: 25 Dec 2016 04:48 PM PST |
| Why do humans perceive that more massive objects should fall faster than less massive objects? Posted: 25 Dec 2016 11:18 AM PST I haven't been able to find anything through search. If this assumption is the exact opposite of basically all empirical observations (setting aside instances of terminal velocity), why would the truth be counter-intuitive? Why wouldn't it just be obvious? [link] [comments]  |
| Posted: 25 Dec 2016 02:42 PM PST |
| Ignoring wind, how much of an effect could rainfall have on the range of football kick? Posted: 25 Dec 2016 07:12 PM PST Referring to American football here. Also ignoring changes in kicking style etc. Just wondering about the effect on momentum from drops falling on the ball, or the ball colliding with drops in its flight path. [link] [comments]  |
| How does a ribosome understand which exact protein goes with a corresponding codon? Posted: 25 Dec 2016 12:58 PM PST How do our cells understand the language of codons? What exactly makes a ribosome synthesize Methionine when it "reads" AUG or to stop when it reaches UAA, UAG or UGA? [link] [comments]  |
| Posted: 25 Dec 2016 09:57 AM PST Is it humans limited way of describing these phenomena? Or does it have to do with the energetic nature? [link] [comments]  |
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