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Post by B. Hieronymus Da on Jul 4, 2024 21:29:17 GMT
I don't think fish or reptiles will ever exhibit any greater intellectual powers. Why not? Birds are technically reptiles and all tetrapods are in essence land based fish. Well, it's like this, "technically", the reptile class these days is re-defined to be by the openings in the skull. It no longer has anything to do with the evolutionary history (ancestry yes, but not history), the typical physical adaptions, traits or lifestyle. But in the context of the question, I, of course, referred to modern world reptiles, since they are the only ones we have, which do correspond to "classical" reptile. And modern reptiles are very far away, evolutionary, from the active, warm blooded, non-classical "reptiles" like Pterodactyls, Dinosaurs, Ichthyosaurs. And of course, Birds are essentially the same as Dinosaurs. And I think that an active, warm blooded animal, that has to constantly move around and search for more food, is more evolutionary advantaged by intelligence, and thus evolves intelligence. Certainly, I see no signs of intelligence in amphibians, reptiles or fish, advanced behavioral "programming" perhaps, but not intelligence. Whales descend from warm blooded mammals, have intelligence, but mainly use it for communication. The life they live,.. fish does it just as well, Manta rays, Basking sharks, Whale sharks, without the big brain.
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Post by Deleted on Jul 7, 2024 9:38:25 GMT
Is there life on other planets? What say you? Lot's of guesses and discussion about this from many experts. On the one hand we have the overwhelming statistical data saying yes. 200 billion to 2 trillion galaxies. 200 Billion Trillion stars 2 trillion planets on observable space. Stats say there must be more life and more than likely intelligent life. However it takes a long time to develop life to our point and the universe is supposedly not old enough for widespread life. Also time also suggest that some parts of life may have come and gone already. What say you all? Life elsewhere? Intelligent life? Now if our rules of physics are correct and hold up and there is no fast than light travel and no way to harness theoretical things like worm holes, there could be intelligent life elsewhere but simply too far away. Opinions? Theories? Is there life on other planets then my answer would be a definite YES  i simply cannot believe that with soooooooo many other galaxies and planets that we are the only ones out there.  So there is also definitely intelligent life out there and i also believe that it is like in Babylon 5 that there are species who are millions of years ahead of us or at least thousands of years ahead.  Do i believe that aliens visited us in the past ( pyramids  ) or are among us nowadays then my answer would be no  just to far away even with lightspeed travel. My new religion based on the below YT video is that god is just a giant Spiral Art toy.  You're talking about God i don't think God is a giant spiral art toy though.  Do i believe in a almighty God then my answer would be NO. I do believe that here is something after we die because i refuse to believe that when a baby dies that that was it for her him. 
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Post by Deleted on Jul 18, 2024 3:39:13 GMT
Okay. You've all likely seen the "astronaut stuck in 0G" video at some point or another. Here's a gif to remind you...  My theory and solution to this is simple:  *** Okay, but really. If I was in that situation the first thing that sprung to mind was taking off my shirt, twisting it into a line, tying the end into a big knot, and using it like a bolas/lasso to try and hit the wall. Pants/belt/sticky hand would work too, but the principle is that he's literally wearing a great many items that could aid or speed up the process. |
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Post by Deleted on Jul 28, 2024 7:56:58 GMT
Bit late out the gate but still new to me, kinda neat. Now we can find a whole new nuclear catastrophy! 
***
Meltdown-proof "pebble-bed" reactor. Paywalled article sourceWhat's apparently behind the paywall via a reddit comment:
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relatively new kind of reactor design, called a pebble-bed reactor (PBR), has the advantage of being passively safe, which means that if power for cooling systems is lost, then the reactor can safely shut down by itself. Rather than use highly energy-dense fuel rods like many other reactor designs, PBRs use a large number of low-energy-density “pebbles” as fuel, which contain a small amount of uranium surrounded by graphite. This can help slow the nuclear reaction and withstand high temperatures. This lower energy density means any excess heat will be spread out over all of the pebbles, and so will be easier to transport away using natural cooling processes like conduction and convection, says Zhe Dong at Tsinghua University in China. While small working prototype reactors have been built in Germany and China, no full-scale PBRs have been shown to work and be passively safe – until now. Dong and his colleagues have demonstrated that the system works with a full-scale nuclear plant, the High-Temperature Gas-Cooled Reactor Pebble-Bed Module (HTR-PM) in Shandong. “Up to now, every commercial reactor except HTR-PM has had an emergency core cooling system,” says Dong. “However, due to the inherent safety, there is no emergency core cooling system in the HTR-PM plant.” To test this, which became commercially operational in December 2023, Dong and his team switched off both modules of HTR-PM as they were operating at full power, then measured and tracked how the temperature of different parts of the plant went down afterwards. They found that HTR-PM naturally cooled and reached a stable temperature within 35 hours after the power was removed.
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Post by Deleted on Aug 1, 2024 23:12:10 GMT
More "Science adjacent" but here it is regardless. Love this channel, melodysheep.
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Post by B. Hieronymus Da on Aug 4, 2024 9:45:20 GMT
The natural place for this post is 'aircraft/space', so I will post this video there too.
However, there is so much to say about this, a big discussion of conceptual design, so I figured I'd just throw it in here too.
...It's hilarious anyway. This is what you get, when you put a person with education in political science (which is NOT science) and languages, in leadership of a technical company relying on government ownership and financing.
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Post by B. Hieronymus Da on Aug 5, 2024 19:40:17 GMT
^ Fun points above:
The host finally loses patience and says: "Suppose you wake up and they are there, what would Arianespace do?"
He then responds with a very revealing phrase: "We would have to react to it."
Oh really? He thinks they can do something about it THEN?! Why not now? In the words of one of IBM's original founders: "You might as well compete with yourself, because if you don't, someone else will."
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Post by q5tyhj on Sept 18, 2024 14:14:27 GMT
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Post by AngryFrozenWater on Sept 26, 2024 14:50:23 GMT
This video is about "our own supermassive black hole" at the center of the Milky Way (Sagittarius A*). Study Finds Sgr A* Black Hole's Actual Age and How It Was Formed - Anton Petrov. |
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AngryFrozenWater
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Post by AngryFrozenWater on Oct 26, 2024 17:13:20 GMT
This video is more interesting than just being about illusions. It also tells us how we perceive audible reality. Very cool. These Illusions Fool Almost Everyone - Veritasium. |
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Post by B. Hieronymus Da on Nov 1, 2024 17:13:46 GMT
A really great documentary from Veritasium staff, produced and narrated by D. Muller as usual.
I urge you to watch it, because it's really interesting, from a number of perspectives even.
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Post by helios969 on Nov 18, 2024 11:29:20 GMT
Is there life on other planets? What say you? Lot's of guesses and discussion about this from many experts. On the one hand we have the overwhelming statistical data saying yes. 200 billion to 2 trillion galaxies. 200 Billion Trillion stars 2 trillion planets on observable space. Stats say there must be more life and more than likely intelligent life. However it takes a long time to develop life to our point and the universe is supposedly not old enough for widespread life. Also time also suggest that some parts of life may have come and gone already. What say you all? Life elsewhere? Intelligent life? Now if our rules of physics are correct and hold up and there is no fast than light travel and no way to harness theoretical things like worm holes, there could be intelligent life elsewhere but simply too far away. Opinions? Theories? This is where the Drake equation attempted to solve...or at least approximate the number of intelligent civilizations in the galaxy. You can make reasonable approximations for the first five parts of the equation based on the latest astronomical evidence but those are still only approximations. L (length of signal generating civilization) is the big one because we only have our own as an example and we've only been generating signals for about a hundred years. I ran through this 20 years ago or so...I think I used 50K years before some catastrophe or another wiped out humanity and came up with a value of 4 for the Milky Way. But the older I get and the more I learn about all the events necessary in the evolution of Earth just to get to we humans the more I think that number is lower...or that we humans are alone in our galaxy. It may be very rare that more than one intelligent civilization exists at any given time...but at the end of the day it's a particularly speculative exercise...and one person's value for L is just as valid as even the most respected astronomer. So have fun with it.  The Drake equation is: N = (R*)(fp)(ne)(fl)(fi)(L) where N = the number of civilizations in the Milky Way galaxy with which communication might be possible (i.e. which are on the current past light cone); and R∗ = the average rate of star formation in our Galaxy. fp = the fraction of those stars that have planets. ne = the average number of planets that can potentially support life per star that has planets. fl = the fraction of planets that could support life that actually develop life at some point. fi = the fraction of planets with life that go on to develop intelligent life (civilizations). fc = the fraction of civilizations that develop a technology that releases detectable signs of their existence into space. L = the length of time for which such civilizations release detectable signals into space.
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i simply cannot believe that with soooooooo many other galaxies and planets that we are the only ones out there. 
) or are among us nowadays then my answer would be no 
just to far away even with lightspeed travel. 
