1

Physiology & Medicine / Re: Why has no Warp Speed Pill been invented to Stop Periods?

« on: 04/08/2022 13:42:36 »

You appear to be in the wrong forum. This is not the games forum.

Are you deliberately missing the point, or just... well missing it for some other reason?

2

Physiology & Medicine / Re: Why has no Warp Speed Pill been invented to Stop Periods?

« on: 04/08/2022 13:39:01 »

It has.

Where?

OK, This is the bit where you make it utterly clear that you do not know what you are talking about.

The usual formulation for the contraceptive pill is 21 pills with active ingredients in - typically both a progestin and an oestrogen- and then 7 days without pills during which so called "withdrawal bleeding" occurs.
But if you keep taking the active pills that doesn't happen.

So, this "magical " pill you say should be invented at "warp speed" is "the pill" and  has been around for half a century.

Did it occur to you that you should ask a doctor, or at least a woman, about this before posting?

3

Chemistry / Re: Why does austenitic stainless steel fail to burn?

« on: 10/07/2022 20:05:45 »

It's an interesting question and I don't know the answer.
The melting ranges of stainless- and mild- steel pretty much overlap.

Nickel is easier to melt than iron, and harder to oxidise, but the melting point of the oxide is lower than for iron.
Chromium is harder to melt than iron and it is easier to oxidise than iron, but the melting point of the oxide is higher.

(with some hand waving added because the oxides aren't well defined and they will be mixtures anyway)

4

That CAN'T be true! / Re: What causes motion sickness?

« on: 09/07/2022 13:46:45 »

What other explanation could there be for such dogged unwillingness to accept sound scientific argument together with error repetition ad infinitum?

https://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect

5

General Science / Re: What caused rope to spin while pulling stuff 6 stories up?

« on: 03/07/2022 19:14:46 »

Most ropes have a twist to them; sometimes it's obvious, sometimes not.
But when you hang a load on the rope, it untwists a bit, and that's why the scaff poles twist.
But when you let the load off, it untwists again and that happens when you lower the rope back. But you are less likely to notice that.

6

New Theories / Re: Origin of magnetic force

« on: 02/07/2022 12:05:27 »

I seem to have CoVid

Get well soon.

7

New Theories / Re: Can we draw a geometrical representation of gravity?

« on: 01/07/2022 15:37:34 »

Can we draw a geometrical representation of gravity?
Yes.
↓

8

New Theories / Re: How Many Numbers Exist?

« on: 01/07/2022 09:59:31 »

https://twitter.com/pickover/status/1541962088926560256?t=ml0TBOGlhgCZIKDaLXserg&s=03
There are many hypercomplex numbers known by modern math. Do they have the same size as real number?

Apparently, the complex numbers have the same cardinality as the reals and I'm tempted to assume that the hypercomplex ones do too.
https://quizlet.com/explanations/questions/show-that-c-the-set-of-complex-numbers-has-the-same-cardinality-as-r-the-set-of-real-numbers-cf3e343a-9b5b-4f78-8a0c-0dcfe9ee5b15

9

General Science / Re: How much of me is original?

« on: 30/06/2022 18:30:24 »

(not teeth - they all fell out and were replaced when you were a child!)

The replacements may have already been in place, but it's probably beside the point.

I'm not saying this is an accurate mechanism to answer the question but it does give some indication.
In a typical year you can expect to eat something like 1000 Kg of food. That's about 7 times your weight.
The stuff food is made from isn't very different from the stuff you are made from.
So each year your body takes in 7 times its mass in "stuff".

If that were properly mixed then only 1/7 of you would be still there at the end of the first year.
So it's 1 in 49 after 2 years and by the time you are 65 it's pretty close to bugger all.

Obviously some bits are better mixed than others.
The chip in my front tooth that I have been carrying round since school is still there- more like 45 years than 65, but the point remains.
Most of that stuff is pretty much fixed. Skeletal bone is turned over much faster than that, but still pretty slowly.
My skeleton is something like 10Kg
It contains something like 1400 grams of Calcium
"The calcium content of bone at maturity is approximately 1,200 g in women and 1,400 g in men"
from
https://www.ncbi.nlm.nih.gov/books/NBK56060/
and it turns over about 0.5 grams per day
https://www.medscape.com/answers/241893-20078/how-much-calcium-turnover-occurs-normally-each-day
so that's about 180 grams per year or (very roughly) the whole lot gets rebuilt every 7 or 8 years.
Some bits deep in the middle might date back to when I was a teenager.
At best, very little of it will be original.
"At full-term birth, the human infant has accrued about 26 to 30 g of calcium, most of which is in the skeleton."

Just a thought; if we are what we eat, why are we not "new and improved"?

10

New Theories / Re: Molecular chain that would end all life? Causality Firewall of life/ CFL?

« on: 30/06/2022 13:43:51 »

If the hydrogen bond between water molecules suddenly disappeared all life (as we know it) would die.
Also the oceans here would boil.
But, on a scale bigger than planets, the weird properties of water probably don't matter much.

This has nothing to do with causality or firewalls.
It's a fantasy.

11

Technology / Re: What Question Could You Ask To Determine Sentience Of An AI ?

« on: 28/06/2022 18:32:05 »

What Question Could You Ask To Determine Sentience Of A Human?

12

New Theories / Re: Can conscious thought act on matter?

« on: 28/06/2022 09:35:50 »

" Can conscious thought act on matter?"
If it didn't, we wouldn't know it existed (other than our own).

13

Physiology & Medicine / Re: The crucial ingredients of CBD:

« on: 21/06/2022 17:36:21 »

I'm just waiting for the spam advertising.

14

Physics, Astronomy & Cosmology / Re: Is there a net heat exchange between water and ice at 0 degree C?

« on: 16/06/2022 21:06:14 »

I'm going to say no, not reliably or meaningfully.

Others may differ
http://users.mrl.illinois.edu/cahill/intel08.pdf

But if you asked about a nanometre cubed, it would be tricky.

15

Technology / Re: What Is The Benefit Of Cryogenically Treating Cables ?

« on: 16/06/2022 13:53:48 »

You have to get copper down to 35K before it becomes superconducting

I'm fairly sure that copper doesn't superconduct  even at much lower temperatures than that.

16

That CAN'T be true! / Re: hydrinos!

« on: 10/06/2022 21:39:07 »

Randall mills claims he can lower the ground state 1s electron of a hydrogen atom to a lower level producing energy in the process

Maybe.
But he hasn't shown anyone else that he can do it, not has he shown anyone else how to do it.
So his claim looks a lot like saying there are fairies at the bottom of the garden.

17

Physics, Astronomy & Cosmology / Re: Is there a net heat exchange between water and ice at 0 degree C?

« on: 08/06/2022 21:39:20 »

It's not how well tested the laws of thermodynamics are that matters here.
Again, it's Galileo dropping things off a tower.
He did not need to do the experiment.
He knew that the light thing and the heavy thing had to fall at the same speed- because he had considered what would happen if you tied a heavy ball to a light ball and dropped both.
The combined "thing" consisting of the two balls would obviously weigh more than the constituents.
So, if Aristotle had been right, the combination would fall faster than the heavy ball.
And the light ball would fall more slowly.
But how could the combined thing fall faster then the heavy ball when the light ball was trying to fall slower?

It's impossible.
Galileo knew that.

He only did the experiment for the benefit of the local dignitaries who were not clever enough to understand the logic.

Now we are looking at the laws of thermodynamics, rather than falling objects.
But, like Galileo, we have the advantage of a deep understanding.
We have known for a hundred years or so that momentum, angular momentum and energy are conserved.
We don't rely on experiments to know this.
We have a mathematical proof.
https://en.wikipedia.org/wiki/Noether%27s_theorem

And yet, we still have hamdani yusuf saying that, because he can't do a proper experiment, he doesn't believe it.
He refuses to learn, or even accept the science.

You can lead a horse to water, but you can't make it drink.

He is even less well informed that those local busybodies for whom Galilei had to climb the tower and drop stuff.

18

Chemistry / Re: Why is Armstrong's mixture so sensitive?

« on: 07/06/2022 18:46:34 »

I read that part of the reason why mixtures of  sulphur and chlorates are so unstable is something like this:
 the sulphur is attacked, even at room temperature, by oxygen.
That produces sulphur dioxide and that, together with water in the air is acidic.
That acid reacts with the chlorate releasing oxides of chlorine.
Those react with the sulphur to produce more acid(s).

The reaction is "autocatalytic".
The heat generated also speeds up all of the reactions.

I suspect something similar happens with phosphorus.

19

Plant Sciences, Zoology & Evolution / Re: Do Spiders Cooperate ?

« on: 28/05/2022 17:23:27 »

Do Spiders Cooperate ?
They mate.

20

General Science / Re: Are Black Holes The Blackest Things Ever ?

« on: 27/05/2022 15:55:29 »

They're not perfectly black, but they're blacker than a place in space with no stars in it.

The black sheep don't quite win, but close.

Why is the one in the middle winking at us?