If going at the speed of sound creates a sonic boom, then hypothetically, if a light source was accelerated to the speed of light, would there be a big "light wave"? |
- If going at the speed of sound creates a sonic boom, then hypothetically, if a light source was accelerated to the speed of light, would there be a big "light wave"?
- Is there a consensus in the scientific community that the perception of time passing is a sense similar to sight & hearing? The University of Dublin recognizes time blindness as a condition and accommodates students with it. Is this rare?
- why are our fingers and toes all different lengths? is there an evolutionary benefit? did earlier humans differ?
- I got a new deodorant recently that says that it has no aluminum or parabens. Is there research showing that aluminum and parabens are harmful in the quantities that they usually come in in deodorant?
- For planets with dozens of moons, do moons ever collide? And if so, what impact would that have on the planet?
- Does drinking lots of water prevent the negative side effects of a high sodium diet (eg. increased blood pressure) ?
- Can your immune system create resistance against bacterial infections the same way it does viral?
- Is there any study on wheter the increase of depression rate in the last decades is an actual increase or an increase on diagnosis only?
- Are bird songs learned or built into the birds DNA?
- What's the significance of Mersenne primes?
- is nuclear waste more or less radioactive than nuclear fuel?
- Does birdsong carry any information that we've been able to "codify" (not sure the word I'm looking for) to any extent? As opposed to the assumption that it's "Here I am, Here I am" over and over?
- Are there any foods (besides coriander/cilantro) that people dislike due to their genetics?
- Is there a way to effectively treat autoimmune disease without strong immunosuppression?
- Can caffeine facilitate the biosynthesis of norepinephrine?
- Why do we have more cases of kids diagnosed with ADD or ADHD today vs 30 or 40 years ago?
- Are religious people less likely to face depression and suicide than non-religious people?
- Is computer addiction a real disorder?
- Can a cell present multiple antigens on all of its expressed MHC class I receptors?
- What's stopping the US from creating water pipelines to the drought-stricken western states like we do for oil?
- Loud sound is bad for your ears, but are certain frequencies more dangerous than others?
- Why is the dirt around anthills so different from the dirt around it? As if the anthill dirt is uniformly size and dried
- Do you fertilize multiple embryo’s in the process of IVF, and choose the one that is the healthiest to place back inside the host?
- If cones in the eye peak at 560 nm (yellow), 530 nm (green), and 420 nm (violet), why are the primary colors red, green, and blue?
| Posted: 05 May 2022 11:04 AM PDT |
| Posted: 05 May 2022 05:58 PM PDT Sights & sounds can be measured in terms of brightness or loudness. Periods of time can be measured by length - e.g. minutes or months. People with time blindness cannot accurately sense or measure the passing of time without external aid (a clock or timer - this one is designed specifically for them). This recent study (March 31/2022) on the pupils of people with aphantasia (the inability to visualize images) proved what millions afflicted with it have been saying since the 1800's: that they cannot "see" anything with their mind's eye. For them, that eye is blind. Similarly, time blindness is also believed to be a sensory issue by those who have studied it, but unlike aphantasia, it has yet to be proven scientifically. For people with time blindness, starting to use a timer for daily tasks can feel like putting on a pair of needed glasses for the first time. They need an aid to monitor the passing of time the way others can naturally. Was aphantasia a "theory" before the scientific proof was found, and is now a proven sensory deficiency? Does the "timer" part of the brain need to be discovered and a deficiency noted in the time-blind in order for their condition to be validated, or does science accept time perception as a sense like sight or hearing, without physical evidence of the mechanism? This research university (University of Dublin) recognizes time blindness and accomodates students with it. Is this recognition rare/emerging in the scientific community? [link] [comments] |
| Posted: 05 May 2022 02:42 PM PDT |
| Posted: 05 May 2022 04:04 AM PDT I.e. when you consider the concentration that they're in in deodorant and when you consider that people use a tiny amount of deodorant once or twice a day, are those amounts of aluminum and parabens harmful to humans? Edit: WOW this blew up while I was at work. Thanks for all the replies, everyone! [link] [comments] |
| Posted: 05 May 2022 09:39 PM PDT In case of collision, do both moons cease to exist? Do their remains rain down on the planet like a meteroids, or are they pushed into outer space? Losing our only moon would be catastrophic for life as we know it. But would it affect life on a planet when their moon counter drops from like 50 to 48? [link] [comments] |
| Posted: 06 May 2022 04:10 AM PDT |
| Can your immune system create resistance against bacterial infections the same way it does viral? Posted: 05 May 2022 10:24 AM PDT Say you got a bacterial chest infection and was prescribed antibiotics to treat it. Would your immune system create some kind of resistance to it if you were to come in contact with someone else who had the same infection after you'd recovered? [link] [comments] |
| Posted: 05 May 2022 02:55 PM PDT |
| Are bird songs learned or built into the birds DNA? Posted: 04 May 2022 06:34 PM PDT If a bird (the type who has distinct recognizable calls) is hatched/raised in isolation, will it still know how to do it's distinct bird song? Or are these songs always learned and just passed down generation to generation? [link] [comments] |
| What's the significance of Mersenne primes? Posted: 06 May 2022 12:52 AM PDT (Keep in mind, the highest math course I have taken is Calc 1. So please try to adjust your answer to my knowledge base) Why have mathematicians been studying these elusive numbers for decades? And why is their (in)finitude such a highly researched mathematics problem? [link] [comments] |
| is nuclear waste more or less radioactive than nuclear fuel? Posted: 05 May 2022 04:12 AM PDT |
| Posted: 05 May 2022 02:52 PM PDT When I hear a bird vocalize repeatedly, it sounds very "similar" to itself, which leads me to think of it being a very basic "Here I am, here I am" sort of thing. But I also remember reading the roots of the word "barbarian", where folks thought certain other folks were just saying "bar bar bar". And nevermind that silly comparison, it was just what prompted me thinking about this just now. I know some birds have various vocalizations for various settings. Crows have their caw and their rattles and clicks. But even here, the caws have significant variation, in the single caws and in the sequence of caws, their spacing/etc. Of course so do the rattles and clicks. How deeply, if at all, do we understand significance of "some series of rattles" vs "some other series of rattles." An answer could be "There is no significance, they are basically automatons" but... I suspect that's just too convenient and human-centric. Why bother with all that different subtlety if it's just "I'm here, I'm here, I'm here." Or "My territory, my territory." Has there been any work done on attempting, I guess what I would have to call translation, of various bird's vocalizations? And to what degree have we gone the deepest with this? The robins in my area, probably all robins, have this long sequence of chirps, which always maintains the identifiable structure, but which has a huge amount of variation. I can't help but feel that there could be very nuanced information encoded in this variation. They also do a sharp single chirp at various times, though always when they're getting their babies out of the nest. I'm wondering if anyone could discuss it or point me at studies related to this or just tell me I'm bird-brained! [link] [comments] |
| Are there any foods (besides coriander/cilantro) that people dislike due to their genetics? Posted: 05 May 2022 10:13 PM PDT It's pretty common knowledge now that coriander tastes bad to some people (including myself) due to our genes. Do we know of any other foods where something similar happens? For example: Walnuts taste quite bitter to me in a similar way to coriander. (ruins carrot cakes by the way) Could this be genetic, or do I just dislike walnuts? [link] [comments] |
| Is there a way to effectively treat autoimmune disease without strong immunosuppression? Posted: 06 May 2022 12:13 AM PDT Asking in regards to the ongoing risk of COVID right now for people with autoimmune disease, and situations where there's long COVID, possibly making COVID already present in the body when autoimmune disease also needs to be treated. [link] [comments] |
| Can caffeine facilitate the biosynthesis of norepinephrine? Posted: 05 May 2022 09:45 PM PDT |
| Why do we have more cases of kids diagnosed with ADD or ADHD today vs 30 or 40 years ago? Posted: 06 May 2022 03:24 AM PDT Is it because we have better was of detecting it and there was no apparent increase? Or is it something to do with our society etc? [link] [comments] |
| Are religious people less likely to face depression and suicide than non-religious people? Posted: 05 May 2022 02:51 PM PDT |
| Is computer addiction a real disorder? Posted: 06 May 2022 01:41 AM PDT |
| Can a cell present multiple antigens on all of its expressed MHC class I receptors? Posted: 05 May 2022 10:06 AM PDT (across all of its MHC class I receptors) There are so many possible internal antigens, both potentially viral-induced and non-viral-induced, that a cell can present on its MHC Class I receptors. How many MHC Class I receptors does a cell typically have? (both prior to and after stimulation by interferon?) [link] [comments] |
| Posted: 05 May 2022 06:48 PM PDT |
| Loud sound is bad for your ears, but are certain frequencies more dangerous than others? Posted: 05 May 2022 10:29 AM PDT |
| Posted: 05 May 2022 12:07 AM PDT |
| Posted: 05 May 2022 12:37 PM PDT How do they choose the healthiest? And how many fertilized eggs are destroyed in the process? This is not meant to be political. Thanks! [link] [comments] |
| Posted: 05 May 2022 03:14 PM PDT Humans have three types of cones in their eyes that respond to different wavelengths of light. According to Wikipedia the three types of cones' response peak at at 560 nm a yellow color, 530 nm a green color, and 420 nm a violet color. Here is a good image showing this. Why then are the three primary colors red, green, and blue, and not yellow, green, and violet? [link] [comments] |
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