Can cancer be transferred from host to host? |
- Can cancer be transferred from host to host?
- How far back in human history would we have to go before modern humans could not reproduce with their ancestors?
- How does Vanta Black work when it comes to absorbing light?
- Is there a point/determination which a trans person is considered male or female when gender specific health/medical information is involved?
- Why do very few high order derivatives not show up very often in equations of motion?
- Why there is potential energy inside the nucleus of an atom?
- Why is it that objects are exposed to great heat and friction when entering into Earth’s atmosphere coming from space, to the ground, when those same objects that leave earth do not seem to be affected by the same forces?
- Why do neutral atoms of almost all elements release energy when an electron is added to them,why do some elements deviate from this behaviour?
- We can't specify the position of an electron around the atom, applying the same principle we also can't specify the position of the nucleus, right?
- Why is it that some scents (cigarette smoke) cling to our clothes or other objects, and others do not?
- Are there any physical or chemical differences between fast and slow twitch muscle fibers?
- Does Mars have enough of an atmosphere to allow sound to travel through it?
- How do our brains know to send the correct signal to move a specific part of our body (i.e a specific finger or toe)?
- I've read that it is estimated that something between 60% and 90% of all species are insects. Regardless of the actual number: why are insects such a rich and diverse class of species?
- Can what someone looked like in life be reconstructed with DNA alone? Can we use the DNA of people who died before photography and reconstruct their appearance? (For example, King Richard III's bones/DNA)
- What kind of fish and other aquatic creatures lived along side cavemen?
- Is it true that time stops at the surface of a black hole? How does that happen?
- What purpose does HBr serve in medications?
- Is a particle's probability wave a wave in the quantum field?
- Do Bosonic and Fermionic isotopes tend to have different chemical properties?
| Can cancer be transferred from host to host? Posted: 24 Aug 2018 07:47 PM PDT Okay, so say cancer cells or a tumor are removed from a human or animal, and are then surgically placed inside of another hosts body, will the cancer cells survive and continue to duplicate? Or will the process of them leaving the host be enough to kill them in the first place? [link] [comments]  |
| Posted: 24 Aug 2018 01:11 PM PDT i.e. how far back would we have to go to be technically considered a different species? [link] [comments]  |
| How does Vanta Black work when it comes to absorbing light? Posted: 25 Aug 2018 06:29 AM PDT Specifically, what happens to the light it absorbs? Is there a limit of how much light it can absorb? Does the fact that it absorbs light mean it actually stops the photons? [link] [comments]  |
| Posted: 25 Aug 2018 05:38 AM PDT Something that I've often wondered is when a transgender person is considered their cisgender equivalent in terms of government advice on health and alcohol consumption, but also taking 'gendered' multivitamins among many other possibilities. For example, regarding:
When does it matter that a trans person follow the guidelines for their cisgender equivalent? Does it at all? Hormone replacement therapy does redistribute fat and change a bunch of other things like the ability to gain and maintain muscle mass, so I'm wondering when these types of advice above becomes relevant. If I had to make an educated guess, would it be based on the dominant sex hormone(s) over a certain period of time, or the mere fact that a sex hormone is dominant to begin with (regardless of a timescale)? [link] [comments]  |
| Why do very few high order derivatives not show up very often in equations of motion? Posted: 24 Aug 2018 02:22 PM PDT I've seen a lot of equations of motion in terms of velocity and acceleration. But I've never seen ones where dn x/dtn for n > 2 show up or even the n-th integral of x with respect to t ever pop up. This even seems to happen in what I've read about quantum mechanics and relativity, (although I haven't read much about relativity). Why would the laws of physics pretty much limit itself to only using distance, velocity, and acceleration when there's an infinite amount of higher order derivatives that it could use? [link] [comments]  |
| Why there is potential energy inside the nucleus of an atom? Posted: 25 Aug 2018 05:20 AM PDT I dont understand why there is a lot of potential energy inside atoms and why fission and fusion release energy. I dont understand the relationship between binding energy and electrostatic force. [link] [comments]  |
| Posted: 25 Aug 2018 04:45 AM PDT When objects are coming from space back to earth's ground surface, they experience great heat, friction and other forces when entering the atmosphere. Why is it that rockets don't seem to be subjected to the same fear of burning due to friction leaving earth, as they do returning? Obviously, rockets can explode and they can break apart due to gravitational forces and pressures, but unless I am fundamentally misunderstanding physics, they don't seem to share the same kinds of concerns leaving, as opposed to entering. What is the cause for reentry friction, as opposed to initial take off friction and heat? [link] [comments]  |
| Posted: 24 Aug 2018 01:10 PM PDT I don't quite understand why electron gain enthalpy is negative. [link] [comments]  |
| Posted: 24 Aug 2018 01:20 PM PDT |
| Posted: 24 Aug 2018 10:57 AM PDT |
| Are there any physical or chemical differences between fast and slow twitch muscle fibers? Posted: 24 Aug 2018 03:13 PM PDT For years, I've been told all about my "fast twitch" and "slow twitch" muscle fibers when being coached for cross country, track, and tennis. However, I've never stopped to think about what makes muscle fibers one or the other. Here are some of my main questions about it: 1) Are there any actual differences between them? 2) Are muscle fibers either fast twitch or slow twitch? If yes, can they switch from being fast twitch to slow twitch, or are they only either one? 3) Do the differences come from the way they are formed, or utilized (difference in signals coming from the brain)? If the differences come from being formed, how does your body know what type to form and where to form them? If there are no differences, am I thinking into this too much? Is it just that there's a difference when you're doing aerobic versus anaerobic exercise? Clearly, I don't know much about this topic. Please try to help me understand :) [link] [comments]  |
| Does Mars have enough of an atmosphere to allow sound to travel through it? Posted: 24 Aug 2018 02:56 PM PDT This picture of Godzilla on Mars made me wonder if Mars has enough of an atmosphere to allow sound to travel through it. Such as Godzilla's distinctive roar (assuming it could even roar with so much carbon dioxide) If we had a microphone, or even a human standing on Mars in an EVA suit, would they be able to hear sounds from any large distance? Or would they even feel the vibrations through the soles of their shoes from a sound originating above ground level? [link] [comments]  |
| Posted: 24 Aug 2018 11:40 AM PDT |
| Posted: 24 Aug 2018 01:58 PM PDT Is there any practical reason as to why there are so many species that are insects compared to other classes? Or is it just that our way of classifying animals makes the insects somehow a broader class than others? [link] [comments]  |
| Posted: 24 Aug 2018 03:14 PM PDT |
| What kind of fish and other aquatic creatures lived along side cavemen? Posted: 24 Aug 2018 02:48 PM PDT |
| Is it true that time stops at the surface of a black hole? How does that happen? Posted: 24 Aug 2018 07:45 AM PDT |
| What purpose does HBr serve in medications? Posted: 24 Aug 2018 08:08 AM PDT I'm super interested in medications and chemistry. Obviously I know this is Hydrobromide, but what purpose does it serve? Thank you for your responses! [link] [comments]  |
| Is a particle's probability wave a wave in the quantum field? Posted: 24 Aug 2018 08:31 AM PDT A particle is an excitation in some quantum field. Before measurement, when the particle is best described as a probability wave, is that waviness something happening in the field, or is the probability distribution itself a description applied separately to the field. In other words, is the probability wave a wave in the quantum field, or a statement of uncertainty about what is happening in the quantum field? [link] [comments]  |
| Do Bosonic and Fermionic isotopes tend to have different chemical properties? Posted: 24 Aug 2018 08:00 AM PDT |
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