Why does your appetite slow down when you’re sick? |
- Why does your appetite slow down when you’re sick?
- How much light is actually reflected by a mirror?
- Is urine really sterile?
- Is melatonin in breastmilk stored or expressed during feeding?
- At what height does it become dangerous to jump into water?
- When people hang upside down, how does the body keep stomach acid in the stomach and not sliding down someone’s throat?
- When you stick your arm out of the window on the freeway, how come the friction from the air rolling across your skin cools you off instead of warming you up?
- Do people with smaller tongues have fewer taste buds, or a higher density of taste buds? and if so, does this effect taste sensitivity?
- How badly do massive bushfires affect the atmosphere in terms of long term post-fire effects?
- Can you learn a language in your sleep?
- Are there any lifeforms that don't rely on sunlight (even indirectly)?
- Why do we say that there was no time before Big Bang?
- How does the location of the brake caliper on the disc affect braking performance?
- Polarization of light with tartrate crystals in a fluid... but how?
- How does gravitational time dilation cause the effect of Shapiro Time Delay?
- What kinds of chemicals make a perfume smell 'sweet', and why do we associate them with sweet tastes?
- How can some fish, for example salmon, survive in both, sweet and saltwater?
- In John B. Calhoun's behavioral sink experiments, what would have been the conditions of a control group of mice?
- Scientifically speaking, does the practice of 'mewing' (adopting correct tongue posture) improve jawline/ facial features?
- Could any stripped down commercial jet break the sound barrier?
- I've read that 500 million animals have died due to the NSW fires; what will be the long-term impact of this on the NSW ecosystem and at what point does that number become irrevocably catastrophic for the NSW ecosystem?
- How much of our sense of humor is dictated by genetics?
- What's the science behind the Hiroshima and Nagasaki bombs? Why were they still airborne when they detonated?
| Why does your appetite slow down when you’re sick? Posted: 01 Jan 2020 02:50 PM PST |
| How much light is actually reflected by a mirror? Posted: 01 Jan 2020 07:23 AM PST I know a mirror doesn't reflect 100% of light so what's the percentage and can anything actually Reflect 100% of light [link] [comments]  |
| Posted: 02 Jan 2020 06:52 AM PST I'm not thinking about drinking it obviously, it's just something I'm curious about because every time I look it up I get mixed answers. Some websites say yes, others no. I figured I could probably get a better answer here. [link] [comments]  |
| Is melatonin in breastmilk stored or expressed during feeding? Posted: 02 Jan 2020 06:52 AM PST Just wondering. I know melatonin levels in breastmilk are higher in the evening and early morning. But, is it stored at those times or does the body secrete it during letdown? If I last breastfed at 12 midnight, will i get the same melatonin content if there was no breastfeeding or pumping until, say 8 in the morning? [link] [comments]  |
| At what height does it become dangerous to jump into water? Posted: 02 Jan 2020 02:40 AM PST I believe the high jump of most diving boards is about 30 feet. So, at what point could it result in injury or even death if you jumped into water? Would a jump from, say, 50 feet be dangerous? [link] [comments]  |
| Posted: 01 Jan 2020 10:18 PM PST |
| Posted: 02 Jan 2020 06:40 AM PST So i know that when your rub your hands together when you are cold, they warm up because matter is rubbing up against matter. Air is matter, so why does it cool us down when it blows across us very fast when we drive down the road, even in the summer when the air is warmer? [link] [comments]  |
| Posted: 01 Jan 2020 03:32 PM PST |
| How badly do massive bushfires affect the atmosphere in terms of long term post-fire effects? Posted: 01 Jan 2020 01:57 PM PST In Australia, over 3 million hectares of bushland has been burned. Are there going to be any dangerous long term effects, or any permanent ones? [link] [comments]  |
| Can you learn a language in your sleep? Posted: 01 Jan 2020 05:53 PM PST There are many "learn a new language in sleep" videos that have a voice repeat words for hours on end, Have there been any studies on the topic? [link] [comments]  |
| Are there any lifeforms that don't rely on sunlight (even indirectly)? Posted: 01 Jan 2020 03:12 PM PST Can any lifeforms survive without sunlight? Objectively speaking, chemoautotrophs don't create energy from sunlight, so they don't directly rely on the sun. But according to several sources, this is misleading. I saw that the chemoautotrophs in Lechuguilla, for example, use atmospheric oxygen (derived from sunlight-driven photosynthesis) as an electron acceptor. Indirectly, they're still reliant on the sun's energy. Are there any cases of chemoautotrophs (or other lifeforms) which have zero reliance on the sun's energy? Perhaps lava tube microbial mats, or the bacteria around deep sea vents? I'm hoping to hear about lifeforms which could survive unaffected if the solar system suddenly went dark, which the Lechuguillan chemotrophs (presumably) could not. As an extension to this question, if sunlight-independent chemoautotrophs do exist, do they produce enough energy to provide for other animals? Is a deep sea vent, for example, home to a complicated ecosystem, with chemoautotrophs as the primary producer? [link] [comments]  |
| Why do we say that there was no time before Big Bang? Posted: 02 Jan 2020 02:48 AM PST If we observed space to be expanding, it means things were tiny once. So maybe everything exploded away from each other a long time ago. This is all about space though. It doesn't mean that time didn't when space was tiny. In fact, 'time didn't exist prior to Big Bang' also seems incomprehensible. Do people who say that have any idea what it means? That's because anything and everything exists inside time. Time is pretty much the stage where things exist. If we're theorizing the birth of time, we're pretty much saying everything just popped out of nothing. [link] [comments]  |
| How does the location of the brake caliper on the disc affect braking performance? Posted: 01 Jan 2020 05:03 PM PST Why are they on the front side for front wheels and on the rear side for rear wheels? I have noticed that this is the case for most (all?) cars. [link] [comments]  |
| Polarization of light with tartrate crystals in a fluid... but how? Posted: 01 Jan 2020 08:04 PM PST I was watching a youtube video last night about when Pasteur discovered left/right handed molecules due to the way that the crystals polarized light when dissolved in a fluid. My question would be - how in the world would polarization work with crystals in a fluid? Wouldn't the crystal orientation be every direction possible? Is there something else going on there? I would think that anything suspended in a fluid is going to be highly chaotic. Thanks [link] [comments]  |
| How does gravitational time dilation cause the effect of Shapiro Time Delay? Posted: 02 Jan 2020 01:24 AM PST How do observers detect a time delay for light traveling through a vacuum versus light traveling through a vacuum near an object of strong gravity but the same distance? If time is passing more slowly for light as it gets closer to the massive body then shouldn't it seem to be traveling faster to the outside observers since it will be covering the same distance in less time (from the reference frame of the light)? or at least take the same amount of time to the outside observer? What am I not getting? [link] [comments]  |
| Posted: 02 Jan 2020 12:39 AM PST I have some air freshener that's so sickly sweet that being in the room with it is like drinking a pint of syrup. What's going on here? [link] [comments]  |
| How can some fish, for example salmon, survive in both, sweet and saltwater? Posted: 01 Jan 2020 11:05 AM PST I know that seafish cope with high salt levels through elevated osmolarity compared to mammals. Sea mammals like dolphins have powerful kidneys. So how do wanderfish adapt when alternating between sweet and saltwater? Change of inner osmolarity? Powerful kidneys? Something else? [link] [comments]  |
| Posted: 01 Jan 2020 06:23 PM PST |
| Posted: 01 Jan 2020 09:19 PM PST Anyone with experience/expertise; it would be great if you could share your knowledge. [link] [comments]  |
| Could any stripped down commercial jet break the sound barrier? Posted: 01 Jan 2020 05:29 PM PST |
| Posted: 01 Jan 2020 06:09 AM PST |
| How much of our sense of humor is dictated by genetics? Posted: 01 Jan 2020 11:41 AM PST |
| Posted: 01 Jan 2020 03:33 PM PST |
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