Archived threads in /sci/ - Science & Math - 519. page
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What limitations are keeping this from reality? This being a personal craft capable of independent vertical liftoff, and able to travel out of earth's orbit and back
The Apollo missions did that in the 60s.
>>7741692
>personal craft capable of independent vertical liftoff.
His questions was really specific.
>>7741682
we don't have magic fairy dust propulsion
iirc he refuels a couple of times in the series
but the engine is so rampantly powerful and fuel efficient that it's completely outside of any technology we currently have
Smart people, tell me how to kill myself, I bought some Hydroxyzine hydrochloride and I don't know how to use it.
>>7741782
Insert anally and you're done.
Don't kill yourself senpai, it's a mortal sin.
>>7741782
You're a real dick if you do it. The shit you put on your family. Don't be such a fucking coward. Things were much worse in the past and for your ancestors. You have no right to even contemplate suicide you fucking coward
What is /sci/'s opinion on the modern scientific and social consensus that race "is a social construct"? i.e.
> "muh race doesn't exist"
> "muh no biological basis for race"
Do you agree? Are there any benefits to humanity in accepting this belief? Can it end racism?
>inb4 >>>/pol/
>>7745992
>will people stop being racist when they realize skin color doesn't matter
Containment board now please and thank you.
>>7745992
Our opinion?
Race is not used in biology anymore, not even for other species than humans. The concept has no scientifc meaning anymore.
If you want to discuss race, give us a rigorous definiton of it to do so
How good do I need to be at Math to be good and Computer Science?
>>7740637
You mean CS, not programming, right?
For CS, you probably need to be pretty decent at math. I.e. you've made it through linear algebra and other upper level maths. For programming, you just need like fucking pre-calc or some shit.
personally i think it's not the math itself what you need, if not the mind that allows you to be good at math...
Is it possible to construct a system of ethics purely based on math (logic)?
Is +ve number better than -ve number?
Is higher complexity > lower complexity?
Is more information > less information?
>>7739956
No, ethics is a human concept after all.
>>7739987
So is math.
If object A is moving to the left with the speed of light and object B is moving to the right with the speed of light at what speed is object A moving relative to object B?
Help pls. I need to know
Speed of light. And those objects are light.
>>7745254
Speed of light + speed of light = 2 speed of light.
Simple relative motion.
why dont we just switch to hydrogen now?
why must we wait for gas/oil to run out?
hydrogen is the future is it not
>>7744680
It's extremely explosive.
>>7744680
Do you want some Arab going Allahu akbar and driving a portable nuke to your house?
We have to wait until the jews have made enough shekels on available fuel. Also hydrocarbon fuel will never run out, just fossil fuel.
Economics is the future.
You can't just throw hydrogen into a car, you have to make the fuel first.
That would require renewable energy infrastructure first to be sensible.
How many solar powered hydrogen fuel factories do you see?
troll science meta-misconception thread
>people misunderstanding conservation of momentum
>people actually think this is impossible because the chair isn't heavy enough or that it's impossible to jump up during free fall, rather than the fact that if your legs were that powerful in the first place you could simply land on the ground and survive
>>7743990
>if your legs were that powerful in the first place you could simply land on the ground and survive
I suspect this is not the case.
Your legs and spine would absorb the energy of the wall, causing massive trauma.
If you, however, pushed off the chair, you would be imbuing it with your kinetic energy. The chair would be obliterated, you would survive.
Always jump with furniture. It maybe save your life.
>>7743990
It is impossible. You'd be moving too fast, and your legs wouldn't be able to create enough downward force to slow you to a safe speed. But I'm assuming you're just trolling, so carry on.
>>7744013
Imagine if you will, Chun Li, in a similar situation.
There is nothing wrong with the physics, is the point.
Where were you when science officially became a reddit meme.
https://archive.is/uWIw7
>ninja
>glowing
Leave it to biologists to be shit at jokes.
It's 2015, grandpa This is how we quirky redditor millennials do things in 2015. Don't like it? Too bad.
Also, I just fucking love science.
>>7742847
A REAL HUMAN BEAN
What are some theories that are currently considered "fringe science" but are now gaining traction in the scientific community?
What are the most outrageous or supernatural-like things that are being confirmed scientifically? For example, telepathy, time travel, teleportation, life after death, etc.
String theory, Quantum gravity.
Gravity
cold fusion
Is the speed of our thoughts faster than the speed of light?
Yes. You should have been taught this in grade one. Fucking retard
>>7745540
False. Retard.
No, it is not. Nerves fire off pretty fast,, yes, but remember they have to convert electrical and chemical energy every step of the way. It happens pretty fast, but not near the speed of light.
>be me
>be chemical engineering undergrad
>taking introductory thermodynamics and also transport phenomena next semester
Any good books that I could start reading right now to prepare for next semester? I'd really appreciate any help or advice so I can hopefully get good grades on these classes and raise my gpa.
>>7745382
http://4chan-science.wikia.com/wiki/Mechanical_and_Aerospace_Engineering#Thermodynamics
http://4chan-science.wikia.com/wiki/Chemical_Engineering#Chemical_Thermodynamics
http://4chan-science.wikia.com/wiki/Chemical_Engineering#Transport_Phenomena
>>7745384
thanks m8. I apologize for not knowing the ins and outs of this place, only been here a couple of times.
Undergrad chemical engineering here. I recommend the following books:
For thermodynamics:
Engineering and Chemical Thermodynamics by Milo D. Koretsky
Introduction to Chemical Engineering Thermodynamics by J. M. Smith
For transport phenomena:
Transport Phenomena by R. Byron Bird
Try the last editions, but the old ones must be fine too.
The speed of light is constant right?
What if everything in the universe is traveling the speed of light all the time?
>>7745151
well if i remember correctly the relative speed of light is always the speed of light.
if you think about that, the only thing u can change about light is its frequency.
if you move toward a source of light the frequency increases (blueshift), and away then the frequency decreases (redshift).
The relative speed of the light is still the speed of light. But thats just off my memory dunno if correct
>>7745157
oh, i'm interpreting "the speed of light is constant" wrong, it's relativistic speed of light is constant.
>>7745151
>What if everything in the universe is traveling the speed of light all the time?
take out the 'what if' and you have your answer
How do you define "increasing" or "decreasing" for a sequence of vectors? Do we use the standard norm [math]|| \cdot ||: V \rightarrow \mathbb{R} [/math] or what?
>>7745062
Considering you just made up those two meaningless terms you can apply whatever definition you want.
is length usually drawn with 2 lines or 1?
>>7745065
W-What did I make up?
I REPEAT THE COLLATZ CONJECTURE HAS BEEN PROVEN.
How could we as professional mathematicians have failed to find such an elegant proof to this problem, whereas this guy was successful?
Link.
http://vixra.org/abs/1204.0011
>this guy's other uploads
Are the world's mathematicias to arrogant to acknowledge that all outstanding problems in number theory were solved someone who refused to join their sekrit-latex club?
>>7745162
Should be
>mathematicians too
>>7745162
man everything wouldve been better than his handwriting
