Archived threads in /sci/ - Science & Math - 628. page

Yes.

No.

>>8829195
if you are a 5'0" manlet with 2" wrists is it possible for you to become an olympic weight lifter? probably not.

can you go to the gym and get stronger than you are? yeah.

same thing.

>>8829195
Genius is by definition atypical neurology.
So, if you wanted to create a genius, just get vaccinated. :^)

>>8828773
Brainlet here, where did you find this?

>operating infinite products as if they were finite
How's high school going, OP?

>>8829050
Read the sentence, idiot

Never heard of him. He's talking about Graham's number?

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>>8828215
this meme

>>8828218
Well if you don't like him, there are tons of other lecturers to choose from at least. Like I said, I never even heard of him. Never even seen that meme.

>>8827949
>do you have one?
yes, in my office

>do you use it?
all the time

>what do you write on it?
pictures of things I'm explaining to people or equations I'm working out to solve a problem

>should i get one?
yes

>>8827949
>what do you write on it?
Algorithms that sum all primes to 2 million.

>>8827949
>what do you write on it?

Benis

CPAP machine

Yes, go learn about sleep cycles. 6 hours of sleep and waking up during a light cycle is better than 8 hours and waking up during REM (there's alarm phone apps that'll essentially monitor your sleep cycles and wake up you during a light a one around the time you set it to)

>>8827626
really? why would I need something like this?

>muh prototype

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>>8821791
It could very well be the EMdrive of batteries:
https://qz.com/929794/has-lithium-battery-genius-john-goodenough-done-it-again-colleagues-are-skeptical/

So like you know how metal in a battery is supposed to 'corrode'? Well in this battery it doesn't.

>>8822114
It doesn't look fantastically unbelievable or like it's violating thermodynamics to me. I'm reading the paper (10.1039/C6EE02888H), and it looks like ordinary battery chemistry: when discharging, alkali metal ions travel through an electrolyte to form an ionic compound with sulfur made conductive by carbon, when charging the alkali metal ions travel back the other way to plate as the pure element onto the alkali metal electrode.

>Goodenough’s battery has pure metallic lithium or sodium on both sides. Therefore, the voltage should be zero, with no energy produced
No it doesn't! That's fucking stupid!

This is why science reporters can't be trusted to paraphrase.

It feels like you are constantly having sex with every else's moms.

>>8821378
I just realized that I don't know anyone that smart. My half bro is 137, and he's almost 50 (huge age difference).

>>8821385
everyone*******

>>8833760
Weight of the water on the seal is greater than the weight of water displaced by the air balls.

if it worked the free market would have done it already

>>8833776
So the balls wouldn't be able to penetrate the seal?

x=x^1 so if x^1=x^a then log(x^1)=log(x^a) or equivalently 1logx=alogx or equivalently 1=a

>>8821829
Thanks: I totally forgot you could rewrite log_{x}(x^1) as 1 log_{x}(x). That totally makes sense. Thank you!

>>8821825

I'd rather show this using patterns:

x^4 = x*x*x*x
x^3 = x*x*x
x^2 = x*x
x^1 = x

You need x^1 = x in order to keep the pattern consistent.

Then, define a as the exponent to get the general case:

x^a = x*x*x*...*x [where the number of x's is a]

This way, you don't need to introduce the concept of "log" to see it -- so the result is immediately understandable and more intuitive.

>>8829256
Earth is flat. Continental drift literally can't happen.

Continental drift is a byproduct of plate tectonics. Why Earth has such active tectonic activity is probably due to the fact that we have water, which acts as a "lubricant" of sorts for the plates to move and subduct.

Venus has grooves on its surface that suggest it once had plates and tectonic activity, but that died with any trace of liquid that may have been on Venus' surface.

Saturn's moon Titan (aka. Saturn VI) has evidence of current tectonic activity - check out the Cassini data if you're interested - although not exactly like Earth's.

>>8829306

>Why Earth has such active tectonic activity is probably due to the fact that we have water, which acts as a "lubricant" of sorts for the plates to move and subduct.

I thought that the movement of continental plates was being caused by the movement of magma several miles deep beneath the Earth's crust, within the mantle?

>>8832873
d^5-d^3=d^3(d^2-1)=d^2(d-1)d(d+1)

note that (d-1)d(d+1) is divisible by 3

two cases:

1) d even: in this case d^2 is divisible by 4, so d^2(d-1)d(d+1) is divisible by 4*3

2) d odd: in this case d-1 and d+1 are both even, so (d-1)d(d+1) is divisible by 4. since 4 and 3 are relatively prime, it follows that (d-1)d(d+1) is divisible by 4*3.

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>>8832895
Pretty good. Now try this one.

>>8832914
do your own homework brainlet

I don't care. Life without beef is no life.

>>8832756
Yeah man!
>t. Vegan pussy

>>8832756
>mercola
No.

because you can count the rationals but you can't count the irrationals, so the irrationals have a larger cardinality

>>8832648
what do you mean by count?

How do you count 0.333...?

>>8832647
>where are all the rational numbers located?
Numbers are abstract objects that are not "located" anywhere. That being said, it can help to visualize the reals as a line, and in that sense the rationals are points on that line. However, remember that your intuition can often mislead you.

Both the rationals and the irrationals are dense in R. The rationals are countable and the reals are not. Density and cardinality are very precise formal terms that do not translate exactly into any informal idea (although you might try thinking of density as zooming in and cardinality as counting).

too many brainlets asking for homework help, degree advice and which textbook to use

fucking immigrants from /pol/

>>8832244
welcome to 4chan, now piss off

The unmoved mover came first

The egg.
Birds and Reptiles were laying eggs before chickens existed.

If you go through every iteration of every species, and find the first version of what you would consider to be close enough to call a chicken, it started as an egg laid by it's ancestor that you deemed not to be a chicken.
So technically the egg came first.

>>8832228
But who moved them?