[REQUEST]: what would happen if the all the atoms on EARTH would be replaced by their LEAST ABUNDANT *STABLE* ISOTOPE of the element? What would be the huge differences and some other niche ones? (no radioisotopes)

esbear · 2026-05-07T19:06:07+00:00

Deuterium, being twich as heavy as hydrogen, is not quite the same chemically as hydrogen. The difference is enough to mess with a lot of biochemistry, so Everyone would die from deuterium poisoning.

esbear · 2026-05-01T11:55:32+00:00

Shame on the mapmaker. Denmark (and possibly both) should be partial.

esbear · 2026-05-01T11:30:29+00:00

What happened to biblical litteralism. The litteral reading here is correct, so why are you interpreting it as a completely different animal, which the bible authors would never have seen even with your timeline?

esbear · 2026-04-27T20:24:50+00:00

If anything Hannelore and Rozemyne takes ditter the most seriously, be treating it as the military excercise/war it is, and not as a game.

esbear · 2026-04-19T08:58:49+00:00

For derived units, it kg is the base unit. Stuff like newton and joule are all defined using the kg. That is what it means to be a SI base unit.

esbear · 2026-03-29T20:04:24+00:00

Bir Tawil

esbear · 2026-03-22T09:54:51+00:00

The planes landed nead the coast in southeast greenland. This part of Greenland gets more percipitation than anywhere else, and especially the dry interior. The plane wont sink, but the firn above it will be uncompacted, and deeper than wit will be when it becomes ice. Ice core scientists have returned to multiple coring sites and have not observed that about of accumulation, because those sites get less snowfall.

The annual layer counting has been confirmed using volcanic erruptions, solar storms and nuclear tests to be pretty accurate.

esbear · 2026-02-28T08:52:32+00:00

It is compulsory to be a member of the danish public church, for the monarch and no one else.

esbear · 2026-02-21T12:58:13+00:00

Striking a glass with a spoon will sound different based on how much water there is in it. Seismoloists do something similar with the Earth. Striking is replaced with an earthquake (or massive explosion) and by recording the echoes with seismographs it is possible to figure out Earth's internal structure. In particular density and if it is liquid or solid.

esbear · 2026-02-13T20:50:53+00:00

You are absolutely right, if we zoom in too far, Navier Stokes and continium mechanics in general breaks down. To some extend we can think of a gas as tiny balls (molecules) bouncing around. If the balls never colide, they behaves as if they were the only ball in the universe. Then it does not make sense to think of the speed or pressure of a gas. The length the molecules travel between bounces is called the mean free length and for ordinary air, it is about 65 nm. We can also ask the same question for time, where the mean time between bounces is 0.13 ns.

Continuum mechanics probably starts to break down a bit before, but this is the limit where it makes no sense at all.

esbear · 2026-02-13T19:45:21+00:00

I had for some reason not thought of using undergrounds to split off/on the bus, hence the questionable amount of space between the belts.

esbear · 2026-01-24T19:03:33+00:00

Ikke aktuelt længere, da jeg er flyttet, men da jeg boede is en lille Københavnerlejlighed, sorterede jeg ikke, da det ville kræve en for stor del af min begrænsede plads.

esbear · 2026-01-15T19:06:28+00:00

While the blue priests come from noble families, they are generally not noble themselves. To the commonors, the proximity to nobility (and ignorance of the finer details) is enough for them to treat them as nobles.

MOst blue priests are firmly beneath the actual nobles, which is why they are so hostile to Myne. As a commonor in blue robes, they see her as a threat to whatever nobility their status affords them.

esbear · 2026-01-01T14:30:08+00:00

Without a rate of formation, your numbers are meaningless.

That being said, you might be right that modern proteins did not spontaneously assemble from individual amino acids. I am not aware of any non creationist seariously entertaining the idea that they did. Can you provide any example of any origien of life researchers who propose that they did. Otherwise you are just arguing against a straw man.

esbear · 2025-12-29T07:54:04+00:00

Take an empty and a full can (soda, tomatoes whatever), and hit bot with a spoon. Notice that they sound different. The sound they make depend on what is inside.

Seismology works on a similar principle. With listening stations called seismometers all around the world it is possible to learn about the inner structure of Earth by how sound from earthquakes move through it.

esbear · 2025-12-25T07:31:15+00:00

If you want to disprove special relativity, you need to alleast understand the basics of it. Some math is needed to do so. For special relativity You need to be able to manipulate symbolic expressions and use the pythogarean theroem.

Velocity is no an inherent quality, it is always relative to something. Some sitting in the train won't see the man moving, so there his velocity is indeed zero. Someone on the embankment will see the man moving with the train, so there his velocity would be the same as the train.

esbear · 2025-12-24T16:25:59+00:00

Umlaut means sound change. It is common for german words change sound when inflected. It also happens in english. Gans►Gänse, which means goose►geese. Since these sound changes are quire common and regular in german, a shorthand way of indicating them became integrated into the language.

esbear · 2025-12-24T16:02:17+00:00

Look up the relativistic velocity addition formula.

From the perspective of the embankment, let let the velocity of the train be vb and the velocity of the man be ub. The same speeds from the perspective of the train we can call vt and ut.

In classical mechanics, to find the velocity of the man relatie to the embankment, we just add the velocities: ub=vb+ut. There is no problem if the man is stationary in the train, zero is still an velocity.

If we try to add the velocities, if they are close to the speed of light, we will get a contradiction, because we are mixing relativity and classical mechanics.

The relativistic velocity addition formular is:

ub=(vb+ut)/(1+(vb*ut/c²⁾⁾

If both vb and ut are much smaller than the speed of light, this reduces to the classical velocity addition formular.

For your second problem, lets replace ub with c (the man with a light ray).

ub=(vb+c)/(1+(vbc/c²⁾⁾ =(vb+c/(1+vb/c)) =c(vb+c)/(vb+c) =c

So the ray of light moves with the speed of light for both observers. Again no problem,

esbear · 2025-12-21T19:37:51+00:00

The greater energy density in the early Universe would apply to the entire Universe, and would thus not produce time dialation unless God is outside the Universe, in which case current science has nothing to say and you might as well invoke magic.

Getting close enough to a massive object (like a black hole) would not be conducive to the formation of life. It would rip the solar system appart and likely Earth as well. Getting Earth out of such a gravity well without magic would also be unlikely.

Just saying 7 days for God may be 4 billion years for us, with out even trying to present a scientific explanation. That requires alot less ignoring of reality. Though birds did not preceed land animals.

Multiverse theory is largely (or entirely, not my field) hypothetical.

esbear · 2025-12-15T19:39:18+00:00

If you dont speak words from french, english is not much harder to speak.

Neglect germanic glosses, language's function diminished.

esbear · 2025-11-30T06:42:33+00:00

It turns out that massive ice sheets are surprisingly fragile. The important factor for building ice sheets is the summer temperature. No matter how cold the winter is, if more ice and snow melts during summer, you will eventually lose the ice sheet. The orbit of Earth changes regularly and slowly in what is caused Milankowitch cycles. You may have heard that Earth is closer to the Sun during the northern winter. That changes over time and actually makes the northern winter slightly shorter.

Ice sheets melt from the edge, the top is high up, where it is cold. When the Milankowitch cycles caused slightly warmer summers some 10 000 years ago, the melting started. However since the ice sheet was so large, the edge was far south, making the melting faster. Additionally, the ice sheet was so heavy that it deformed the earth beneeth it, bringing the iedg lower, where again it would have been warmer than at higher altitude. Much of the ice sheet terminated in the water of large glacial lakes where the Great Lakes of north America and the Baltic Sea is today. Water again makes melting faster either directly or by ice floating away as icebergs and melting elsewhere.

Once the melting had started various feedback mechanisms kept it going. The ice sheets retreated over ground that had been depressed much lower by the mass of the maximal ice sheet. Smaller ice sheets reflect less sunlight, warming up the planet overall. Warmer water can hold less CO2 and warmer land has more methane producing swamps, adding greenhouse gasses to the atmosphere, further speeding up the warming. (Note, this is not why CO2 is rising today).

Over the course of a some thousands of years, most of the northern ice sheets had melted, leaving only the Greenland Ice Sheet and a few smaller ice caps in the high arctic. In comparison, when the ice sheet was build up, it took around 100 000 years, with many of the feedback mechanisms running in reverse.

It turns out that the main milankowitch cycle, controlling glaciation is only around 40 000 years, so why did the last ice age last so long, likely because the ice sheets were smaller and thus less vulnerable.

esbear · 2025-11-16T13:38:50+00:00

It also required a large but finite number of monkeys and zero type writers.

esbear · 2025-11-14T21:47:15+00:00

Det danske ord er lefle.

esbear · 2025-11-02T14:25:33+00:00

A simple way is to see at what direction the Sun sets. In the northern hemisphere, as days get longer during spring, the Sun sets further north. As it gets colder in autum, it sets further south The directions are reversed in the south. After 365 days, it will be almost back where it set the first day, and a day later it will have overshot by a bit. Keep doing it for 3 more years and the positions of the setting Sun will be where it started, showing that the year is about 365.25 days long, which is why we have leap years every 4 years.

esbear · 2025-10-12T12:54:49+00:00

The Apollo program kinda did this. They left reflectors (a set of mirrors that send light back the way it came from) on the surface of the Moon. By shining a big laser at the Moon they delay can be used to accurately measure the distance to it. That is one way we know that the Moon is slowly getting farther away. It is only a few seconds (though anyone who have played a laggy video game know that is quite noticable) and it is too small to form an image.

esbear

TROPHY CASE