Mfw we've only perceive 3 dimensions and have only voyaged as far as the moon yet claim to have an understanding of how the universe came into existence and how it will end
what are astronomy and physics
>>7768815
What about time?
>>7768815
No one claims as fact anything other than 3 spacial dimensions and 1 temporal dimension. Which we do perceive.
String theorists think that 7 more spacial dimensions probably exist, but don't claim it as fact.
Hey guys, i have a math assignment that involves astronomy of our solar system. I need to come up with research question/aim that can be answered using math, like calculus and linked to astronomy. Do you guys have any tips or suggestions?
Find the rate of change in the velocity of a planet in an elliptical orbit as a function of time
EZPZ
gravity
>>7768722
Why do experimental observations of the precession of mercury not aline with predictions made by newtonian gravity?
So there is obviously a correlation between extremely intelligent doctors (Doctor House level), and whether or not they went to a prestigious medical school. So my question is, is it possible for one to be as good of a doctor as some of the world-renowned and even fictional doctors after attending medical school at a sub-par university, due to their lack of motivation to strive for high GPA's but still apparent presence of potential and intelligence of these extremely good doctors? Give me some hope.
Fucking hell, some of you on here ask some weird ass questions.
>>7768716
>Dr. House
>extremely intelligent
Almost all graduates from prestigious schools are really smart
There are still really smart graduates from non prestigious schools
Which medical school you attend and how smart of a doctor you are isn't really causative. Those really smart doctors who went to prestigious medical schools would have been just as smart if they went to the University of Indiana
What do you think about medicine? I would really like to discuss this topic that has been floating in my head for quite a while now.
Questions I would like to discuss:
1. What do you generally think about medicine? Is it harmful or helpful?
2. Do think medicine should be used in every case for a fast regeneration or do you think for minor diseases (like the general cold) should natural cures be used instead of antibiotics?
3. What do you think about psychological medicine (dont know the exact term right now)? Does it help patients to live a normal life or are they just prescribed because someone doesnt fit into society?
4. Do you think it is easy to develop something similar to an addiction from taking psychological medicine or that it can even permanently damage your brain (like a nicotin addiction for example)?
5. What do you think about people taking psychological medicine and stimulants to raise their performance, for example students trying to get better grades?
6. Do you think psychological medicine is also used militarily or even politically to put rebels who could start a revolution down and make them unconscious of their surroundings?
bump, since writing a more lengthy answer to this could take a while
Is this bait?
1
Depends. It's a tool. Tools are neither inherently helpful or harmful, but they should only be used to be helpful
2.
>general cold
>antibiotics
Clearly you don't know much about medicine
But no antibiotics should only be used when required to prevent serious damage
3.
Depends. I think generally it is over prescribed a lot and that it should only be used over small amounts of time to show people what their lives *could* be like. But therapy is probably more helpful and sustainable
4.
This isn't really an opinion and it depends on the drug. People develop physical addictions to SSRIS but not psychological ones. On the other hand, benzos are both physically and psychologically addictive. And yes, abuse of some medicine can damage the brain. This is an objective fact.
5.
Not bad at all so long as doses taken are reasonable and nobody gets addicted.
6.
Wow you might actually be retarded
You're stupid
Disregarding all the memes and shitposting, how hard is an engineering degree like mech eng? What aspect presents the greatest difficulty?
>>7768606
Depends on your IQ.
>>7768611
>meme, the post
>>7768606
bumping because I'm still not sure what to major in and have a buffer semester of math catching up and freshman english/microecon
>Reading a scifi novel
>They refer to am arbitrary "range" for a spaceship
>No mention of Delta V
Let us discuss the silly things in scifi, and suggest good hard scifi.
>reading sci-fi
>they say op is not a fag
Perhaps their calculator auto-calculates the furthest destinations based on their available delta-v and a preset time limit. ^^
What type of ship is it?
Where in space is it?
Could be many reasons why they aren't using Delta-V.
I'm a computer programmer but I've been keen on reading some biology (and later genetics) books purely out of interest.
I can easily find cheap introductory biology textbooks at my used bookstore that are maybe 5-10 years old. Is it going to make a big difference if I get a dated edition? I know genetics moves at such a fast pace but I wonder if an introductory biology textbook from 2005 vs. 2015 would be much different?
Get a new one
Your good... for now.
>>7768400
Fuck a textbook. Go learn some bioinformatics and you'll pick up biology along the way.
Check out Rosalind. It's like project Euler for bioinformatics.
With globalization taking over the planet, slowly, I cannot help but wonder about the future of the human species.
Since humans don't really follow natural selection anymore, in the sense of survival skills, it seems impossible to determine which types of traits that would develop and be more useful for future generations. (ie: brain size, height, etc)
When you look at which groups of people are having more children, it's almost impossible to tell. The majority of people in the developed world having kids have probably 2 maybe 3 at the most. Some outliers having more.
So say in 2 million years, and assume that humanity hasn't been wiped out or anything, how would we see the human species, is it damn near impossible? Is it more than possible for humanity to divulge into 2 or more different species?
Anybody an evolutionary biologist student or grad, anthropologist, can weigh in on this?
Less intelligent and more impulsive people are those who have more children in today's society. It doesn't look too good desu senpai...
>>7768315
Genetic engineering will make natural selection irrelevant very soon. IOW, the traits that predominate will be those we consider desirable to have, not those that result in having more offspring.
>>7768326
Makes sense. So do you believe culture can influence physiological changes in humanity? I believe even somebody who seems dumb, can be educated just as well as another healthy person.
When electricity passes through a resistor, some of it is dissapated as heat.
How much heat does one watt of electricity produce?
Pic unrelated
>>7768313
>How much heat does one watt of electricity produce?
One watt.
>>7768313
0.000526565066840732 degrees Celsius per second.
Heat is energy
Power is the rate of energy use over time
One watt is one Joule per second
To answer OP's question we need more information (like the fucking resistance)
Let's have an algebraic topology thread.
Yesterday I learned about Eilenberg-MacLane spaces. That is for a group G and a natural number n you can construct a topological space K(G,n) such that G is the n-th homotopy group and all other homotopy groups are trivial.
Can I get a similar result if I want more homotopy groups to be non-trivial and to equal other previously specified groups? For example if I have a set of groups (Gi) with i in some finite or countably infinite index set, can I find a space where the i-th homotopy group is Gi for all i? Or is there some obstruction making such a space impossible?
Maybe there is a glueing of the K(Gi,nj)'s which does this, I'd ask on SE
>>7767928
I know category theory and need to learn some basic algebraic topology for a homotopy type theory course. What's a good introductory resource?
>>7768076
OP here. I like Tom Dieck's "Algebraic Topology" and Davis & Kirk's "Lecture Notes in Algebraic Topology". Bredon's "Topology and Geometry" also contains many chapters on algebraic topology, but I only briefly looked into that book.
Four new elements (113, 115, 117 and 118) have been confirmed by IUPAC, completing the seventh row of the periodic table. What do you think should they be named? Srs bzns.
For sure 113 should be named after Japan like rikenium or nipponium. I don't know about the other ones.
>>7767862
This is all over IFLS and similar on facebook.
>>7767862
USA USA USA USA USA USA USA USA
Freedium
Libertium
Prosperium
>>7767904
those aren't legal names, faggot
Imagine if there happened to be a general consensus to divert all attention into a particular field of Science, which field would it be and why?
For me it's Medicine, at least we would less likely die out and hopefully find cures for shit like AIDS and Cancer this way or possible be immortal.
Mathematics, obviously.
>>7767731
Electrical engineering, battery technology specifically
>>7767731
Chemistry. Central science, so advances in chemistry directly impact all other fields of scientific knowledge.
Good afternoon /sci/!
This is your chance to show that you're not all undergrad faggots...
Time for Kummer-Dedekind and chill.
Undergrad fag here. What does (p, a)^(n)=(p) and that little cross symbol mean in the first question? And why algebraic number theory? Why not analytic? Or are you doing both? And aren't you in your first/second year?
PhD here. What is a "number"?
>>7767643
>what is the little cross symbol
gtfo
How do you use the Taylor series for curve fitting when it requires knowing the curve in the first place?
She is a beauty, but she do lack curves.
>>7767309
because you don't do taylor series for curve fitting
>>7767309
I thought you could only use taylor to approximate a function only near a certain point..? Can you use it to approximate an entire function? Correct me if I'm wrong /sci/
The chicken and the egg riddle is a linguistics problem.
Depends on whether you say it's a chicken or a hen it could be the egg or the animal:
-If it's hen, then the hen came first.
-If it's chicken, then the egg came first.
Discuss.
>>7767107
>"The egg, laid by an animal that was not a chicken"
>- Neil D. Tyson
>>7767107
A chicken just means a chicken. If you wanted to communicate that it is male you would say rooster. For the purpose of the 'paradox' it is assumed that the chicken is a hen.
Anyway the answer is the egg.
>>7767125
Maybe just in the english language. Other languages have a name for the baby and another one for the grown animal.
