In geometry, do opposite and parallel essentially mean the same thing? A kite has two equal-length sides that are adjacent to each other, while a parallelogram has two equal-length sides that are opposite to each other. Would it be equivalent to say that a parallelogram has two parallel sides of equal length? Parallel is even in the name.

Assuming the recursive function f(x)=2x , x eof N we can see that all results are even.

Let's define that the start value of the recursion has to be odd.

f.e. we get this sequence starting with the number 3:
[3,6,12,24,...]

Here is my question: Given an even number can we find the odd start number without having to divide it by 2 until we got there?

If no, can we somehow construct an odd numbers where this is possible? It don't have to be all odd numbers.

Why do melanesians look like black Africans ? Is there an explanation regarding their genetic?

> Picrel are melanesians rioting against the systemic oppression done by austronesians (asian looking people) in Indonesia against them

Should the government be expected to fund scientific research or can we rely solely on the market?
Is government funding of science usually effective or is it wasteful on the whole?
How does it affect science as a whole? Do we encourage good research this way or bad research?
Anecdotes from professional scientists welcome :^)

Hello, /sci/. I usually don't post here so if this is not the correct board I apologize in advance.
To make story short, I work in a fictional world and I've created a landmass that basically occupies a great portion of the north hemisphere and reaches to almost the equator forming a some sort of peninsula, picrel it's an approximation of what it looks like. Now, having that peninsula connected to the pole by land makes me wonder how far inland would the ice sheet travel, which coordenates would occupy. Would the ice sheet travel beyond the 60º latitude, esentially freezing the whole peninsula or would oceanic currents prevent the absolute freezing of the land?
Thank you in advance.

Can only certain types of people think scientifically?
Is it possible to teach someone how to think scientifically?
If the answer is no, is that the reason much of the world reamins undeveloped and unindustrious?

The Kelly criterion is a rule on how much to bet, mathematically. is there an adaptation of it for more than a single event?

The standard Kelly criterion is: $\frac{pb - 1}{b - 1}$. If the probability of some event happening is $p$, and I can get $b$ times my money if it happens (including stake, e.g. b=1.4 means a $100 bet gives $40 profit).

But say I want to bet on two events with slight correlation, like "team 1 ahead by half-time" and "team 1 wins". I have the following 6 probabilities:
1) P(home team ahead and wins)
2) P(home team ahead but doesn't win)
3) P(home team behind but wins)
4) P(home team behind and doesn't win)
5) P(home team ahead)
6) P(home team wins)

If I'd treat them like independent events, I'd end up overbetting. If I'd treat them like 100% dependent, I'd bet less than I ought to. What's the solution?

I know I could do a mathematical optimization, but it feels like there should be a closed-form solution.

Would it be possible to break it up into 4 mutually exclusive bets and compute "phantom odds"?

Whats the objective, non schizo reasons behind those /pol/ memes of "person DEAD after getting COVID jab!" or "its not a vaccine, its XYZ that's why its called a jab and not QRS!" and the like?

Every time I see this shit, I know there's probably more to it that's not addressed which renders it more mundane and unremarkable. But of course, if you look all you get is pozzed good boy points propaganda or retarded schizoid ramblings by people actively trying to find demons under every rock in their yard

Is it pointless to study science if I only have 5 hours per week spread over two days to do so? I'm thinking it would take too long to be worth the effort. I am 36yo.