Archived threads in /sci/ - Science & Math - 624. page
Why do people act like global warming is actually a thing? Im currently a senior, but last year in AP Chemistry I was surprised over how many people in my class (Liberals) actually believed in global warming.
Thoughts?
I think you have multiple personality disorder that really clashes with your other self. Why don't you two get a room.
>>7661253
yeah you tell em brother
I went outside this morning and it was colder than it has been in weeks. Global warming my ass.
>>7661253
do you seriously buy all the 'climate change is a big conspiracy' crap?
What's the physics behind hamsters running wheels?
tide goes in, tide goes out
you can't explain that
God : 1
Atheists : burning in hell
>>7661227
Isn't that a biology question
>>7661227
wat
HELP !
Stuck with doing Biology 102
I got three questions which I have no idea how to answer... PLZ ANONS HELP ME
1. Name the key enzyme used during PCR, and identify the original organism in which the enzyme was first discovered ?
2. What special feature does the enzyme you described possess, that allows it to work in PCR ?
3. The EvoBead(TM) are specially formulated the company Edvotek. What must be present in the "beads" to allow for DNA Copying during PCR ?
NOTE: THIS IS "DNA FINGERPRINTING USING PCR LAB"
>>7661223
lol have you tried googling any of this?
>>7661223
I would've helped you, but I took offence at your picture's filename.
>>7661242
have i !?!?
I tried real hard !!!!
Can anyone explain ways to link physics to molecular biology (Biochemistry, genetics, etc). It's a pretty open-ended topic but I have a degree in Molecular Medicine and am interested in physics. Anyone have any ideas on how to link these two? It might sound stupid but this is only out of interest
>>7660671
The connection to physics is mostly through statistical mechanics (and quantum to a lesser extent) which is used to develop models and methods in chemical solutions thermodynamics that is applied to biochemical systems including surface science and macroscopic systems (molecular thermodynamics models applied to chem. sol. thermo. methods). Textbooks:
>Garland, Dill K A , Bromberg S Molecular Driving Forces; Statistical Thermodynamics In Chemistry And Biology
Written by physicists,...
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>>7660691
*Switched my titles around accidentally.
>>7660671
bump for santa
How easy is it to get a degree in physics when you have a master in math?
>>7660665
I wish Cirno was posted more often in math-related threads.
Should be very easy, it's just applied math.
>>7660665
Completely different ways of thinking. Some mathematicians can't do physics even if their life depend on it, some can do it and they are good at it. It's up to you.
>>7660665
People get physics degrees without a math masters? That's like the bare minimum entry requirement.
Brain: complex quantum device
Computer: electrons flying around.
Why do AI researchers even hope that they can emulate the brain or create some intelligence and shit? It's clearly retardedly hard. Why are we being warned against rogue AIs and shit?
Basically AI nowadays is just a massive curve fitting operation be it RNNs or LSTMs or whatever you're using. Is it a dead fucking field?
Pic very unrelated.
Are AI researchers really trying to emulate a brain in software. Maybe they might be trying to understand some heuristics used by humans so they can use them in programming a theorem prover or something but is anyone actually trying to build a copy of a brain using electronics?
>>7660063
Fuck your shit OP.
I want to know if that troll science comic would work at a small amount.
The brain is no more a quantum device than computer circuitry. Both exist in a world subject to quantum laws. And neither exploit those laws in any particular way, but rather seem to do their best to cancel out all quantum jitter from their mechanisms.
The brain is several magnitudes more complicated than the wildest fever dreams of a CPU architecture designer, but the difference is not some hand-wavy thing like "quantum mechanics." Instead it is raw fucking complexity.
http://www.newgrounds.com/portal/view/655010
What kind of mathematics, if any, provides a systematic way to solve problems like the game above?
(Pic related?)
Graph theory basicly. These problems are often linked to computer sience though, with algorithms like depth-first search and width-first search
>>7659927
https://en.wikipedia.org/wiki/Knot_Theory
>>7659927
graph theory. Look at planarity of a graphs and elementary counterexamples (K5, graphs having K5 as a subgraph)
Semester is almost over. anyone else going to miss their lab partner?
FUCK NO. I have to do a final project for this intro to engineering course and this stupid kid followed me into the final project choice I wanted to do simply because he knows I'll do all the work. He's going for Civil and I'll doubt he'll even manage getting through school for that.
>>7659840
Why don't you tell him to get his ass in gear?
>lab partner
>in math
https://finance.yahoo.com/news/leading-harvard-physicist-radical-theory-160000092.html
http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.112.161301
Have you guys read this? This is a /sci/ topic. The first link is for popsci lads, and the second is for the austimo of /sci/.
>>7659565
>https://finance.yahoo.com/news/leading-harvard-physicist-radical-theory-160000092.html
Not http://physics.aps.org/articles/v7/41
Stay plebtier pleb
> not aliens
shit theory
Math without applications in mind is literally pointless and this is coming from a math major.
>>7659517
I hope your wife/best friend is an engineer then so your life won't be wasted on chalk scribbling for muh ego
Not having a suitable application at the moment doesn't mean there isn't one.
History is full of cases where the true value of a given theorem wasn't realized until much later.
>>7659535
But still, your value of the math hinges on it being applicable in the future.
Suppose you could know that a certain field of mathematics could never be applicable. Would you value it?
So can anyone here come up with a theoretical hoverboard design?
>>7658678
BTTF2 was fiction.
>>7658678
All of the ground would need to be magnets.
>>7658680
>aeroplanes were fiction
>jet engines were fiction
>rockets were fiction
>computers were fiction
>space travel was fiction
Let's do dis
page 2/2
>>7658381
most promising thread i've seen in ages
1) It's useless to pick an a_i to be 4 or more - you can split it into 2 + (a_i - 2) if that's the case and get a better one product. So we're left with choosing from 2 and 3. Two 3's are better than 3 2's (9 > 8) so we have to pick as many 3s as possible. That takes us to 999. Then we have to compare 3 vs 2+2, where the 2's win.
Final answer:
n = 334
Sequence = 2 times 2, 332 times 3,
>>7658381
2) Let's assume a solution exists, x needs to be close to the square root of 379. This is about 19. Try 19 (it's easy to multiply these numbers because it includes 20), doesn't work, too big. Try 18. It works, looks like this:
380 * 378 + 1 = 379^2
>not using this god tier book
>introduction to proof
>>7656887
what's so funny you bumfucker
>>7657434
Not to comment on the contents of a book I've never read, but you should have been introduced to proof at the high school level, not at the upper division level.
I think I may have dun goof'd.
Egg whites contain antibacterial lysozymes. I've designed an experiment where I'm going to put paper discs soaked in egg white solution into bacterial agar jelly dishes to see how potent the antibacterial effect is...
... but I didn't consider the fact that egg whites themselves are comprised of proteins and other nutrients which are food for bacteria.
Have I fucked up?
>>7655860
yep. bacteria are just gonna grow. idiot.
>>7655860
the fact that the eggs are full of nutritious/delicious proteins is exactly why the antibacterials are there in the first place - to fend off hungry parasprites. this experiment can show the effectiveness of these lysozymes in their egg drop soup served on paper plates, but if you want to find their effectiveness in other environments... well, you know.
>>7655860
Don't see a problem with that. Even bacterial growth would be a result, just like the opposite (antibacterial effect).
Will we ever be able to revive cryogenically frozen people or is it all just a giant waste of money?
The processes behind reviving someone in such a way are still far from reality and the methods that we go to cryogenically freeze shit today are not good for tissue to begin with.
We have no use for cryogenically freezing people and reviving them to begin with. The only realistic application is long term space travel or some shit like that and we're better off trying to get shit like the meme engine working.
So the only people left outside of that who would give a remote shit about that specific application in cryogenics is the industry of rich assholes who...
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>>7655467
I believe, Anon.
If it truly was a giant waste of money the government would be doing it by now.
>>7655503
>If it truly was a giant waste of money the government would be doing it by now.
DARPA invested in it for years
