All-nighter cramming or sleep?
Does sleep even matter bros?
I'm curious about this as well. Does anyone have final exam cramming tips? I have an operating systems exam tomorrow.
>he actually needs to study
What is this machine /sci/ ? my electrical machines teacher will give us grades based on using this machine and i dont know shit about it.Can you guys enlighten me?
>>8044996
its your class and you
A) dont even know what the fucking machine is
B) cant even take a fucking proper picture of it
seriously, learn to enjoy failure.
>>8044996
Does Fisher-Price make a breadboard?
>>8044996
They are mini nuclear reactors. Maybe if you paid attention to your teacher you'd know. But yeah, have fun not being able to blast into outer space.
This is a video of a truck getting thrown off of an aircraft carrier. When it hits the water, it bounces off instead of sinking. Why?
>>8044969
look up physics of stone skipping
>>8044972
B-but that's why I came here.
>>8044974
Surface tension of water, a big chunk of the kinetic energy in the truck is reflected back when it hits
How does 5 msec = 250 Hz?
5 times 50 equals 250, come on now.
>>8044945
why do we multiply by 50?
>>8044945
is it because 5 msec = 10^1?
What's next after we colonize Mars?
>>8044878
The Moon.
Callisto
>>8044878
A revolutionary war breaks out between the Martian settlers and Imperial Earth
Which side are you on, /sci/?
It's happening
http://actu.epfl.ch/news/a-vitamin-that-stops-the-aging-process-of-organs/
immortality by 2050 confirmed
pic probably not related
>>8044772
>http://actu.epfl.ch/news/a-vitamin-that-stops-the-aging-process-of-organs/
>>8044772
Nah
https://www.fightaging.org/archives/2016/04/a-recent-study-of-nicotinamide-riboside-supplementation/#comments
>>8044772
explain
What are /sci/'s opinions on the dangers of big solar CME's and why nothing is being done to protect our infrastructure from it?
http://microgridmedia.com/grid-will-not-survive-geomagnetic-storm-or-emp-attack/
https://en.wikipedia.org/wiki/Solar_storm_of_1859
>There is a 12 percent chance of a super solar storm the size of the Carrington event hitting Earth in the next 10 years, according to physicist Pete Riley, who published a paper in the journal Space Weather earlier this year on the topic.
http://phys.org/news/2014-07-earth-survived-near-miss-solar-storm.html
Anyone?
It would be bad if it hit something like a nuclear power plant.
I've lived through hurricanes and the proceeding two weeks of no electricity.
I think people are frightened by this because the electrical grid will be down where the CME hits hardest. If you are really worried, just keep extra food, water and some way to boil water with gas or propane.
>>8044574
>"..big enough to "knock modern civilization back to the 18th century," NASA said.
That's a euphemism because they conceal the existence of nuclear installations. A few will fukushima within a week and not a single one will survive going 'island' for more than a month.
The ball gains speed with each magnet. He is getting more energy out than he put in. How is this not perpetual motion?
>>8044566
He is taking energy out of the magnets
>>8044569
How much energy does the magnet contain and how did it get in there?
>>8044570
Im not a physicist I dont know. Fuckin magnets man
Why do we only hear about reducing CO2 and almost nothing on geo engineering?
Well there is discussion about it, but one approach is dealing with the root of the problem, and the other is more like slapping a band aid on after the damage is done. So which is better?
most of it isnt feasible in large enough instances to make a difference
i mean space mirrors?
really?
I think the best method of action is to run a closed circuit that uses excess energy for hydrolyses. Solar, wind, geo, nuclear all eventually make their way back to a fuel cell that generates hydrogen and stores it. It's less efficient than batteries but more utilitarian at this point, it's relatively easy to retrofit vehicles with hydrogen-hybrid systems which with proper tuning and R&D could substantially boost fuel efficiency. That's not just ICEs either, you could implement it in coal plants and natural gas plants too. Unfortunately the efficiency of reciprocity is really low, like below 13% and with current materials and understanding unscalable but it's excess energy so is efficiency really an issue?
What will toilet paper be like 100 years from now? Will there be some sort of biodegradable paste that forms into sheets or would that be too expensive to justify?
Have we reached the limit of ass wiping technology?
>he doesn't know how to use the three seashells
>>8044401
>What will toilet paper be like 100 years from now?
>>8044401
These are the questions that the Human Race should be asking!
Rate my molecule.
Also, can someone figure out it's IUPAC name?
>>8044289
Oops sorry guys there shouldn't be N3 groups on the double bonded nitrogens in the ring
:^)
>>8044289
A giant ring of nitrogen that looks like what probably was in the hiroshima nukes.
I'll assume red book autism would name it: Bold & Brash
>classical physics: a particle is a little ball
>quantum mechanics: a particle is a wave
>QFT: a particle is a field
>string theory: a particle is a string
Get your shit together, physics fags. For fucks sake, how am I supposed to trust you, if you can't even agree what a particle is?
not a monkey
Just embarrassing how divided physicists are
physicsfags btfo
literally bio-tier
What went wrong in the Soviet/Russian space program?
They used to be the leaders of space exploration in the 50's and early 60's, but starting around the late 60's they've been slowly dropping off the race and facing failure after failure.
Has Korolev's death really been that destructive?
You also keep hearing about how much the N1 rocket bogged everything down and what a complete failure it had been, but the people involved in it insist everything was going according to plan, that the biggest issues with it were ironed out by 1973, and if only it had another test launch it would have proved itself successful.
the problem with the N1 was they rushed it and didnt test the parts thoroughly prior to trying the complete setup
if they had, they'd have caught all the problems with fuel flow and vibrations
as another anon pointed out in a previous thread, depending on how you define "engines", the N1 isn't that much crazier than the gold-standard lifters in use today
I also think a issue was NASA talking the lead. They started buran and I think mir. Lots of R&D don't quote me I am a NASA nerd. Non related but does NASA ares include SLS?
>>8044247
The private sector does it now at least.
Check it out! A live HD stream of some newly discovered hydrothermal vents!
http://oceanexplorer.noaa.gov/okeanos/media/exstream/exstream.html
Nature. Vapes.
>>8044165
check out these chimneys
they found another one!
Are sterotypes of academics standing in the way of scientific progress? It seems like you can't even discuss evolution or climate change in public in the US without getting some shit about scientism hurled at you.
Pic related. (from the previous thread)
You're the retard that decides to address memes rather than focusing on the scientific discussions and blame them for your own autism.
Also the last thread got deleted right before anon delivered
>>8044136
>engineering paper
>calls anon a fag