Archived threads in /sci/ - Science & Math - 1149. page

>>8510240
[math] V= \partial_r \frac{\pi r^4}{3} [/math]

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>>8510244
>partial when there's only one variable

>>8510247
thats general notation for a derivative

Maybe it's done to make it harder to overblow the recorder?

I've never played the flute, but I did play the recorder as a kid and I don't remember being able to produce the first overtone on it without adjusting the fingering, unlike all the other wind instruments.

>>8510097
>the tone hole is at the true half wavelength, but the register hole is slightly past it

help me follow what you're talking about, I play a bit but the specifics...
is the tone hole on the back and you cover it with your thumb?
is the register covered by the index finger?

>>8510185
Other way. Tone hole closest to the mouthpiece plays the Do above the fundamental (all holes closed). The register hole allows access to higher octaves beyond that Do (though fork fingerings seemt o call for the use of the register hole for that Do which confuses me a little.)

>>8510061
Study Physics or some Biology with a good masters and go to NASA or w/e European equivalent there is

>>8510079
I'm an international studies/GIS major who speaks Japanese. I have the opportunity to go into Space Law. I guess that is the best a math-retard like me can do.

>>8510085
Hmm, yeah maybe that's one of the things you can do

But hey, at least you don't need subs to watch anime or translations to read some manga
>RIP DJT

God damn Russia is huge.

>>8509888
>Russia

Ah, another Kremlin troll spreading fake news.

>>8509888
Well, there are several ways. But trigonometry is the best one. You just measure small triangles and compute their area. Then just add the areas of the triangles together.

P.S.
Yes, I know that Earth is a sphere. However, for small triangles, it does not matter. If you want to know the margin of error, learn some manifold topology.

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>>8509864

>>8509866
Like I said I think it's retarded and easily debunked, but that's not really an argument against it. Our theories about the universe are not set in stone. Saying that a claim that contradicts the First Law of Motion can't be true because it violates the First Law of Motion is circular reasoning.

I'm just looking for people's inputs on whether or not the researches who built the thing just got experimental error.

>>8509868
There are like 3 open threads on this in the catalogue, which you should check out before creating a thread on a popular topic.

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desperate bump

>>8509508

The speed is always the same but because it travels through a medium it bounces and reflects around it so it takes longer to reach the end point.

>>8510333
Nope.
Polaritons, OP.

1.5 years into my master's degree

still at stage 0

>>8509258
pretty good. finally got a journal paper accepted. now i just need to do a revision on in in the next 6 weeks

>>8509355
Good journal?

>>8509255
Your apparatus will melt before you create a black hole.

>weird stuff start happening when photons get concentrated enough?

I don't exactly remember the documentary (might have been times arrow) but they said light can effect gravity, or maybe photons have gravity, again I forgot sorry. If you had series of powerful enough lasers, arranged in a funnel shape it would create a gravitational distortion where you could fire photons into the funnel and the photons would travel back in time. Anyone know what my swiss cheese memory is trying to think of?

>>8509448
Light has mass so of course it affects gravity

>>8509142
>2 holes merging
that's gay as hell dude

>>8509142
Looks like a piggy

>>8510267
Thats not funny. If you actually looked up at night to the sky and saw that piggy nose you and everyone you love would instantly die being sucked into that snout of certain hell. It would obliterate all

>>8509066
MIT needs to push diversity.

People complained their problems were too sexist and racist because women had trouble solving them and were feeling 'raped' by the problems.

>>8509070
What?...

>>8509073
MIT problems used to be hard but then women complained they were being raped by their difficulty so they put in friendly problems.

Is that some motherfucking bismuth

>>8509056

Colors=thin layers of oxide

>>8509100
What about the shape?

This is depressingly bad bait

>>8508791
Wrong, you can't even refute it so you insult it instead.

>>8508791
You do realize that -1 x -1 is the same as -(1 x 1) right

>>8508439
Because most useful research gets patented and you don't hear about it for decades

i.e. the technology behind touchscreen was known since the 1960s but only got mass commercialised once smartphones took off in 2008

Anyone else?

>>8508439
For one thing, it would probably destroy our entire ecosystem. Sure, it could lie developed but hidden for a few decades like >>8508448
says, but even if at first it is only available to the rich, it is such a breakthrough that I'd wager many would do anything they can to scrounge money together to afford the therapy/treatment/procedure/whatever it would be, especially when you rationalize that a longer lifespan will mean more time to make it back. Plus, like most technology, as it is further developed and streamlined it will only become more accessible.

So now our still-rising population is augmented with a lowering mortality rate, which means a substantial rise not only in food and other resources consumables, but also a decrease in available livable space.

tl;dr it sounds appealing, but would probably kill the human race.

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>>8510028
>tfw entered a meme program

>>8510028
>>Are you too stupid for all of the above
>CS
Kek
>>Are you a conman
What's that?
Did he mean't common man?

>>8510083
>>8510083
Oh shit, i just google'd it, THAT'S MY SHIT BRAH
>tfw want to major on Stats or AppMath+MathFinance Masters
Breh, i also could do some Physics but eh, i have to get a PhD in order to have a nice job or something

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Try looking it up on the internet instead of asking, this is trivial and there are myriad resources that go into whatever level of detail you could possibly want.

>>8509878
Wow, calm down, I've tried searching it up, but, there is no concrete answer. The only result I found were questions using this as an integral, without any proof as why r squared is left as a constant. Hence, I'm asking here as a last resort (professor still didn't respond).

>>8509885
r^2 is the jacobian for spherical integrals
google that, then come back to me