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Archived threads in /sci/ - Science & Math - 1075. page

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http://www.cell.com/cell/fulltext/S0092-8674(16)31664-6

Published today, by the Salk institute in California, this paper shows that forced expression IN VIVO of the Yamanaka factors (OSKM) in order to induce pluripotency in differentiated cells in mice results in the amelioration of phenotypic aging symptoms i.e. mice tissues get healthier, as if they were younger, WITHOUT INCREASED RISK OF CANCER.

This confirms that epigenetic marks on the genome play a central role in aging and paves the way for more research into how mammalian aging itself works. This could be very useful research that could allow for clinical tests in humans in a few years from now.

Thought /sci/ would like to know, what with all the recent immortality craze.
PLEB VERSION: scientists discovered and outlined a protocol to "reverse" aging in mice tissue. Yes, this could show us the way on how to reverse aging in human tissues using the suitable pharmaceuticals, some years from now.
Simplified article: http://www.salk.edu/news-release/turning-back-time-salk-scientists-reverse-signs-aging/

Dumbed-down article: https://www.theguardian.com/science/2016/dec/15/ageing-process-may-be-reversible-scientists-claim
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>>8541613

>you were born too late to receive the sweet embrace of death
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>>8541613
Reversing aging is stupid. We already live abnormally long lives. Old humans die so that new humans can take their place and progress can be made.
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>>8541628
>Reversing aging is stupid.
I beg to differ.

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Singapore tops latest OECD PISA global education survey
Japan, Estonia, Finland & Canada are the 4 highest performing OECD countries

https://www.youtube.com/watch?v=q3TCpzSe4cs
https://www.oecd.org/pisa/aboutpisa/pisafaq.htm
https://www.oecd.org/pisa/pisafaq/
https://www.youtube.com/watch?v=i4RGqzaNEtg
https://www.youtube.com/watch?v=HZjxkDA1s-c
https://www.youtube.com/watch?v=-xpOn0OzXEw
https://www.youtube.com/watch?v=9Wbl-PflEc0
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>>8539415
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>>8539419
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>>8539415
>Portugal higher than USA
kek

/sci/, I come to you as but a humble idiot. I need to pass a CLEP exam for College Mathematics to be able to graduate college. No problem, right?


Except I haven't had a proper math class in years, and even the classes I've taken way back when didn't cover all of the material I need. Also I need to learn college-level Math in about 2 weeks.

Do you have any learning tools/book recommendations I should check out? I'd really appreciate it. I'm checking out Khan Academy now, but I feel extremely unprepared.
6 posts and 1 images submitted.
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do you have a list of topics that you're expected to know for the exam
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>>8549016
https://clep.collegeboard.org/exam/college-mathematics
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>>8549026
>College mathematics
>All highschool shit

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As a /sci/ do you recognize that believing in a reality that exists independant of our senses is akeen to believing in the existence of a divine heaven or god? Both incomprehensible ideas.
Both example of a belief in a primal source of truth or knowledge from which all else flows and can be undertstood.
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>>8548666
Learn to spell, retard.
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>>8548666
Go away Satan, we don't want what you're selling.
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Except that it is supported by experiments, retard.
2/10 poor bait

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>Approach new problem in maths
>Can't solve it unless I know the maths necessary or an example that relates to it closely
>Look at math Olympiad papers
>No clue how to even start on some of the problems

Is this confirmation I'm not smart but instead a hard worker who learns from example not intuition?

What does it feel like to be truly gifted at mathematics?
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Mathematics isn't a plural word, faggot.
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>>8548621

In the UK we use "Maths"
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>>8548630
That doesn't make it right.

Does water in movement drag light? If I put light inside a water current, and the light is going against water's speed, will I see a slower beam of light?
8 posts and 1 images submitted.
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>>8548540
its not dragging light, light just constantly flows and is constantly messed with (direction changed) by the water.

It remains at the same speed.
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>>8548547
What if the water current is laminar and there is no turbulence?
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>>8548557
same exact thing
its movement in one direction is independent of the other.
If you shoot a bullet and drop a bullet they will hit the ground at the about same time assuming its perfectly flat.

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Ways to study physics? I have my Electricity and Magnetism final tomorrow morning and I need to learn everything now. What is the best way to learn all that shit about impedance and ac circuit frequency?
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>>8548033
Get off 4chan and start doing problems.
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>>8548033
just fucking drop out. why the hell did you wait this long to start preparing? did you even go to class and do the homework?
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>>8548044
I went to class and halfheartedly did the homework but I need to have all the formulas and shit memorized for tomorrow. I would like to have an excellent theoretical understanding where I can see the formulas derived from the differential equations and eigenfunctions but I haven't found anything like this yet.

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How do I get better at math, /sci/? no memes please

It's a very broad question but I appreciate any help I can get.
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>>8547865
What do you suck at
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1. Read/watch other people do math. Learn how they do it.
1a. If you can, try and find multiple people doing the same problem in different ways. This prevents you from 'overspecializing' in one particular approach and finding yourself helpless if it fails.
1b. This is going to be more controversial, but if you can find people doing [math]bad[/math] math, do so. (By which I mean relying on faulty or non-rigorous reasoning.) If you can explain why they're incorrect, or where their errors come from, it will increase your understanding of the topic. 4chan is actually pretty good for this, if nothing else because of the lack of avenues for you to learn from mistakes.

2. Practice. You've probably heard this one before: start by copying what you've seen in (1.), then try and tackle some problems on your own. If you often find yourself unsure of how to proceed, or making too many mistakes, go back to (1.) and do more of (1a-1b.).

3. Make your own notes, or better yet try and explain the topic to someone else. You know you've internalized and understood it if you can explain it in a simple manner.
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>>8547883
There's nothing in particular that I'm "bad" at per say, it's just that my knowledge is very basic. I've never had an active interest in math until recently, but I'm roughly on a high school
civics senior level.

I wouldn't mind revising everything I was taught in high school in order to improve my foundation because usually I'll just compensate for my shaky math knowledge with logical thinking, basically by doing what >>8547909 called bad math
>1b. This is going to be more controversial, but if you can find people doing bad math

I find math interesting and physics even more so; especially algebra and I'd rather try my luck and improve rather than feel handicapped without attempting to get gud.

So rather than improving in a specific field, basic guidelines that aren't too apparent would be really helpful. I guess if there's anything specific I'd like to get better at then it would be linear functions.

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Hello world!

I said it last week, I took a vacation and am going to go through the book in pic related. Here's the video I just made, it's just a brief history and the basic C++ "Hello World!" program being discussed. Any related and vaguely related discussion welcome.

Todays video (next one tomorrow):
https://youtu.be/0ClVmNGXB00

Intro video from last week:
https://youtu.be/JGcC67uDHvg
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What c++ is this? 2011 2013?
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>>8547607
The book is from 2003 (I talk about that in both videos)
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>>8547614

Why the fuck would anyone want to learn old and outdated C++?

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Every Physicist is a mathematician but not every mathematician is a Physicist. Thus a physicist is the lord of all.

This can be empirically observed with intelligence testing.
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>every physicist is a mathematician
lmao no they're not
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>>8547452
Yes, they are. This is basic logic, so it is expected that basic people like you struggle with it.
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>>8547457
>This is basic logic, so it is expected that basic people like you struggle with it.
Wouldn't that imply that I would grasp it? If the logic is simple, and I am simple?

Did a mathematician fuck your wife?

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'Dark Lightning' Zaps Airline Passengers with Radiation

http://www.livescience.com/28594-dark-lightning-zaps-airline-passengers.html

>"Dark lightning" that is almost invisible within clouds may regularly blast airline passengers with large numbers of gamma rays, scientists find.

What will they think of next? And will it start with Dark?
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Dark memes acting as space propulsion method.
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>>8547322
Dark Universe.

A universe that exists within our universe that you cannot see and mirrors us.
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>>8547322
>What will they think of next? And will it start with Dark?
Trouble with trib, errr, I mean theories
? Just prepend "Dark" and you are now the established capacity in the field.

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I guess it can.

https://www.youtube.com/watch?v=5d5iIoCiI8g
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I'd just like to point out that the fallacy here is assuming that a structure needs to melted in order to fail.
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>>8547148
The only question was can thermate melt steel.
Draw your own conclusions for everything else.
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>>8547140
Who said it couldn't?

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Hey /sci/,

Environmental engineering technologist student here. I'm wondering what the general concerns us and opinion is here of Nuclear energy in general and Thorium in particular.

From the research I've done it seems like the best possible energy source, but Thorium reactors are held back from a more general fear of Nuclear energy and its potential hazards.

All opinions are welcome, I'm just seeking greater understanding here.
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It seems like you're just another mindless drone repeating what the lobby tries to propagate. Your "reasearch" probably consits of reading 2 pages on wikipedia after watching some video from Reddit.
I hope you're just a naive 18 year old freshman and not literally retarded.
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>>8546878
Wow. Very helpful. Do you have any data too back up that smug attitude or are you just being a faggot for fun?
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>>8546842
>Environmental engineering technologist

NAIT? SAIT? SIAST? Unfortunately the only thing awaiting you is unemployment

What are you guys doing? Why are you doing something useful when you could be posting in:

Math general!

OP is a faggot and has nothing to say.
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>>8546695
Reviewing differential equations for the study of dynamical systems.

The titles of my subsections are getting ridiculously large
> Second Order Homogeneous Linear Differential Equation with Constant Coefficients
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>>8546695
I'm going to crossdress and try to quantify its effectiveness on my productivity.
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>>8546699
just wait for
> n-th Order non-Homogeneous non-Linear Differential Equation with Variable Coefficients

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What type of movements make a plane pilot experience g forces?

I mean can you explain the mathematic basis behind that?

I understand that these g forces are created because the aceleration of the plane

But I dont understand how turning or the speed of the plane make you feel g forces
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What type of movements make a car driver experience g forces?
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>>8545728
The reaction force from your inertia acting on the plane's body when it accelerates. Like a centrifuge, which is why they use them to train pilots.
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>>8545728

imagine you are going one direction at a specific velocity

it takes a force to change your direction (or accelerate). Without a force acting upon you, nothing would ever stop you from moving in that one direction at that one velocity. G forces are just those forces that cause the pilot to change his direction or velocity.

Also imagine being in the middle of empty space with no gravity: if you throw a ball it will just go on forever at whatever velocity it is at after it leaves your hand it in a straight line.

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