Score
Title
85
AskScience Panel of Scientists XVIII
273
AskScience AMA Series: "I am Rhett Allain, physicist and technical consultant on Mythbusters and MacGyver. Ask me about the physics of pretty much anything!
162
Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology
139
is it possible to move an object in circular motion using magnets?
37073
Why is it that during winter it's not uncommon to have days with abnormally high temperature and summer-like weather, but in the summer it never drops to winter-like weather for a day?
60
What triggers beta particles to form, and for what reason can they not penetrate substantially thick aluminium?
74
If capacitance increases as distance between plates decreases, why aren't there very small 1F capacitors?
26
What happens to the spin of an electron when it leaves a nucleus?
56
If the moon was created from an impact with Earth, could there be “Earth rocks” deep within the Moon?
55
Whats the truth about applying water to burns? Will cold water cause it to blister or stifle it? What about lukewarm water?
2
Have animals been observed using facial expressions to communicate among themselves?
219
If 2 people dislike the same food, are they then more likely to dislike other similar foods?
24
If both the liver and the kidney are filtering organs, what are their different responsibilities? Are there other organs that perform similar functions?
13
Why do martian rovers last so much longer than planned?
29
Are there positions of a chess board that are impossible to achieve legally?
19
Are there any materials that only allow radio waves to pass through in one direction?
1
Why are the characteristic lines from X-Rays limited by a lower AND UPPER energy?
1
How did chemists determine the structures of molecules before they had high power microscopes?
16
Why does water make paper products translucent?
61
Does the Mach Cone occurs only appears when crossing the 1 Mach speed or it can also appear later during the supersonic flight (> 1 Mach)?
5
How exact do orbital speeds need to be so you don't fly off into space (too fast) or fall into the atmosphere (too slow)?
32
What was going on in the science community when the first dinosaur bones were discovered? Did we realize early on what we were looking at? What was the attitude of the community towards the discovery?
5
How are the eggs of birds formed and what is the process called? Are they formed to the size that they are eventually hatched?
11
Is there a theoretical limit to how many protons an atom can contain?
6
What physically happens inside a computer when it crashes or freezes?
23
Could a planet with a highly eccentric orbit be tidally locked?
1
How do scientists assess/prove the age of ancient foot prints?
12
At what frequency does a repetitive sound become a solid sound?
544
Can dogs observe and recognize aging in adult humans? Do they differentiate between young adult, middle-aged and elderly humans?
12
Does the gravitational force of the sun and moon affect the atmosphere the same way it affects the tide? Is there an increase in oxygen during high tide/low tide?
0
I was never able to tune a guitar using my ear. Yesterday i did it out of the blue without practice. What happened to my brain?
10
Why are there so few species of mammals?
2
Can an oil reservoir "blow out" on its own with no human interaction?
29
Why don't the palms of our hands and the soles of our feet tan or burn?
1
Is energy gain relative?
16
Is it possible to trigger or "activate" a volcanic eruption?
2
How uneven can London Dispersion Forces make an atom?
8
Are there any known mutations in drosophila melanogaster that cause a phenotype of folded downward wings?
0
If Earth were larger, would it move closer to the sun or farther away?
9
Are blood bags usually sealed (in a vacuum)?
11010
When does a mushroom die? When it's picked? When it's packaged? Refrigerated? Sliced? Digested?
15
When you physically break or shatter a flash storage chip, to what degree is the data still readable from the fragments?
2074 [deleted] [removed]
169 tbird1134 I have experience with surgically implanting radio telemetry tags in the abdomen of different species of fish, they're made of metal encased in a cylindrical tube of clear hard plastic. Multiple times I've taken them out of fish (living and dead) that have had them in for a year or two. What I've found is that their bodies actually absorb the object and begin calcifiing and attaching flesh to the object. I have no idea if that's the same with humans but it happens in fish.
24 Sounkeng One thing that is missing from the responses so far is that these objects can (and typically do) result in a low grade chronic inflammatory response that typically results in the formation of a fibrous capsule surrounding the implant. Also if particulates break off or form with the degradation of the material than it can result in macrophages being unable to destroy that particulate matter and so they fuse with other macrophages resulting in the formation of giant cells to try and destroy it resulting in frustrated phagocytosis. As others have said certain materials are better and are used a lot as implants because they have minimal degradation, have minimal interference with biological processes among a number of other desirable properties. But even these materials (think Silicone for breast implants) still result in fibrous capsule formation.
80 NilacTheGrim Our immune response largely targets proteins and other organic compounds. This is for good reason -- generally the things trying to kill us are all viruses (coated in proteins) or bacteria (also coated in some proteins). We don't really have much of an immune response to things like metals or non-reactive inorganic compounds. Our immune systems largely ignore these things. Coating the chips properly with a suitable material will almost guarantee 0 immune response, basically.
10 dyneine There is ongoing research for better threads (sticking materials ) and coatings that are more bio compatible and don't get attacked by the immune system or are harmful to the cells. This is not done for micro chips, but for implants . Like for example hip or knee implants where the whole bone or parts of it needs to be replaced
2073 0 [deleted] [removed]
168 0 tbird1134 I have experience with surgically implanting radio telemetry tags in the abdomen of different species of fish, they're made of metal encased in a cylindrical tube of clear hard plastic. Multiple times I've taken them out of fish (living and dead) that have had them in for a year or two. What I've found is that their bodies actually absorb the object and begin calcifiing and attaching flesh to the object. I have no idea if that's the same with humans but it happens in fish.
25 0 Sounkeng One thing that is missing from the responses so far is that these objects can (and typically do) result in a low grade chronic inflammatory response that typically results in the formation of a fibrous capsule surrounding the implant. Also if particulates break off or form with the degradation of the material than it can result in macrophages being unable to destroy that particulate matter and so they fuse with other macrophages resulting in the formation of giant cells to try and destroy it resulting in frustrated phagocytosis. As others have said certain materials are better and are used a lot as implants because they have minimal degradation, have minimal interference with biological processes among a number of other desirable properties. But even these materials (think Silicone for breast implants) still result in fibrous capsule formation.
80 0 NilacTheGrim Our immune response largely targets proteins and other organic compounds. This is for good reason -- generally the things trying to kill us are all viruses (coated in proteins) or bacteria (also coated in some proteins). We don't really have much of an immune response to things like metals or non-reactive inorganic compounds. Our immune systems largely ignore these things. Coating the chips properly with a suitable material will almost guarantee 0 immune response, basically.
10 0 dyneine There is ongoing research for better threads (sticking materials ) and coatings that are more bio compatible and don't get attacked by the immune system or are harmful to the cells. This is not done for micro chips, but for implants . Like for example hip or knee implants where the whole bone or parts of it needs to be replaced