Archived threads in /sci/ - Science & Math - 1997. page

>>7772907

Probably the most fundamental important idea that should be taught to biology students today is that biodiversity is overrated.

>How does a Supercontinent effect the biodiversity of the organisms living upon it?

Affect. Not effect. Honestly, it doesn't really matter. It could increase biodiversity, and it could lower biodiversity. Do you mean locally, or for the planet? Local biodiversity could drop in a location, but the total diversity of life on Earth could increase.

But ultimately it doesn't matter. Life doesn't care about biodiversity. You have to understand that originally the biodiversity of life, assuming a common ancestor, was 1. One. There was no biodiversity. So, the idea that biodiversity is important in some abstract sense is a non sequitur. You can get biodiversity from zero biodiversity, n=1.

>(Both plants and animals) You're missing 3 kingdoms here. Life involves more than just plants and animals.

>What would the biodiversity in the OCEAN be like?

You can make hypotheses, like coastline in relation to latitude, and say that longer coastlines nearer to the equator = more biodiversity, but again, who cares? Your professor might care, but nature doesn't give a shit. The real question you should ask is, "What's wrong with less biodiversity?"

Biodiversity and conservation at this moment are in a very sad place.

>>7773003
Ignore this retard.

>>7772907
A good place to start would be to start looking at how continents moving around affected biodiversity.

Supposedly South America was full of marsupials and large animals until it collided with North America, at which point all of the marsupials were wiped out along with lots of other animals in general.

>How does a Supercontinent effect the biodiversity of the organisms living upon it?

Biodiversity will drop.

>What would the biodiversity in the OCEAN be like?

Same with the supercontinent.

Depends:
If the circuit is using direct current, you're correct.
If alternating current is used, They are correct that it takes more energy, but for the wrong reason.
It has to do with just how many Joules/coulomb you can squeeze out of a modern-day battery source.
Hope that helps.

>>7771652
Btw most cars today are extremely efficient at start up. If you are stuck in traffic with low gas it is usually better to turn the car off at stops.

You are right and they are wrong. They are probably confused because they heard that will wear out the bulb faster (which is true), but it won't use more energy.

You can see that's the case even without a current meter. If switching it on used more energy, that energy would still have to go somewhere, ie light or heat. It doesn't create a bright flash of light, so that leaves heat. Does the bulb heat up instantly in a flash, burning your hand if you are touching the bulb when it turns on? No, it starts out cool and takes several seconds to warm up.

That's correct tho

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I sincerely hope you're not implying that atheism is either scientific or reasonable.

>>7789131
I don't see anything incorrect in that image

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>The Mars Exploration Rovers carry two 8-amp-hour lithium batteries.
I wish I had a 8000MAh lithium battery that would last this long. Can't seem to go for more than 3 years before mine puff up with gases and become a fire hazard.

Though I suppose you don't really need to worry about a fire in an atmosphere that is nearly vacuum and primarily composed of fire retardant.

>>7786764
I hope not, it's cool as hell.

>>7786764
Eventually and without maintenance, it will break down. I mean I'm pretty shocked it's still going.

>>7784433
Complex Geometry

Algebra

>>7784433
set theory, it's also the most useful desu

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>dat distributive property
>dat rigorous reasoning to obtain a value for y

makes my peepee firm, /sci/

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feels so good to get those correct answers

thanks uncle Sal

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dem energy points, feels so good

>mirin avatar, /sci/ ?

>>7783453
Why do even have BSG in your feed? Unfollow whoever retweeted it to you.

No one here respects pop-scientists.

>>7783453
>create unhackable systems

I respect the man but this shows complete ignorance of the subject.

It is literally impossible to create unhackable systems.

>>7783462
He's good for the kids and pseudo-intellectuals.

I have every confidence in the future of humanity. The reasons are best explained in this manifesto, which I highly recommend you read.

http://www.ecomodernism.org/

Key reasons;
- increasing development leads to less environmental dependence, and therefore impact, per capita
- the world has reached 'peak child', where global fertility rate is a stable ~2.6 children per woman. Result; better education and opportunities for children resulting in rapid development.
- projected global population at end of century is easily fed by farming current farmland more efficiently (inefficiency in developing world is staggering due to poor access to modern agricultural technology)

Earth is kill my friend. Focus on terraforming Mars.

>>7782920
Well people have been predicting malthusian collapse for a little over 200 years, it's still not happened. So I'm pretty confident.

>>7782611
Because it's challenging and fills me with joy. Research in pure math obviously.

>>7782613
Would your fun and strive for challenging work stall; if you majored in physics or other sciences?

>>7782619
Not him but I started disliking the sciences back in high school. I was always good at them but the lack of precision and the limitations of nature made me feel powerless doing it and thus it wasn't very enjoyable.
Math on the other hand let's me explore my ideas in more depth without running into stupid issues such as: is this possible?
I'd like to do research or some comfy software dev

>time cube style website
>news articles
>anecdotes

Post actual science or GTFO pop sci retard

>>7781565
what an absolute camel shagging wife beating gypsy peasant you are

shut the fuck up and stuff that ciggy up your arsehole

>>7781565
what the fuck is wrong with you idiots coming into /sci/ daily with this "smoking isn't bad" shit? fuck off and die from cancer already

This is bait.

>>7781261
it doesnt matter how many times u roll a 10 faced dice, there is one case such as 77777.... you cant deny its existence.
That is, y = (10^x - 1)/10^x, if y can be 1, then 10^x = 10^x - 1, then 1 = 0.

0.999... is just not 1, give it up

>>7781275
The probability of it being 777777... is 0. Note that probability 0 [math]\neq[/math] impossible.

Sage because bait.

>>7779877

Algebra by Artin
Linear Algebra by Friedberg, Insel, and Spence
Applied Partial Differential Equations by Haberman

>>7779877
Pretty sure they have published Spacetime and Geometry by Carroll.

Really any Giancoli physics text is pretty good, despite the shekel grubbing at Pearson

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>>7777475
CS. Machine Learning Specialization.

Graduate Student. Working on Hyperloop design.
College and Autodidact on EE curriculum.

Bishop - Pattern Recognition and Machine Learning.

>>7777475
>If it goes well we might have a wiki

We already do

http://4chan-science.wikia.com/wiki/Mechanical_and_Aerospace_Engineering
http://4chan-science.wikia.com/wiki/Electrical_and_Electronics_Engineering
http://4chan-science.wikia.com/wiki/Computer_Science_and_Engineering
http://4chan-science.wikia.com/wiki/Chemical_Engineering

>>7777481
What are your references for studying EE?

>>7777485
Thanks.

> breathe oxygen
> contributes to cell aging and death

Eating and breathing through the same hole is utterly retarded.

Thanks God.

>>7774450
But oxygen is the most potent electron receiver, and it is also abundant in the athmosphere. Without using it for energy, complex multicellular life could never have evolved!

>>7785197
Khanacademy is just a resource for education, like a book. Retards could always pick up books so nothing is being changed.

The rest you list is simple entertainment. No one watches the martian and then thinks he wants to be a botanist. At least I hope so.

>>7785197

Does it matter? They're going to get weeded out by their second year.

>>7785197
>>7785201
Veritasium, MinutePhysics and Vsauce are good for a few things, getting the gist (in layman's terms), teaching children and entertainment. Anyone who is serious about learning a STEM related subject should then go on to do proper research, or enroll with an academic institution.