Posts by chasly from UK
Is a moon made entirely of water possible? Could a planet made completely of water exist? I was inspired by the above questions to ask the following: Assume that our current Moon is replaced ins...
The one-electron universe postulate, proposed by John Wheeler in a telephone call to Richard Feynman in the spring of 1940, hypothesises that all electrons and positrons are actually manifes...
I travel back in time to the Big Bang in my time machine. I am equipped with all the present day equipment I need. I locate the infinitesimal 'point' where the Universe would come into existence an...
This question draws on an old idea but it is different. The original question is, "If everyone in the world jumps at the same time, will the Earth move?" My question is,"If everyone in one hemis...
In a world of superheroes the job of blacksmith is given to the very strongest of them. Question Is splitting an atom in a human-scale piece of work by using a human-scale tool even theoretically...
There are many questions on Worldbuilding about what item(s) a time traveller should take back in time in order to alter past events or even simply to survive. There has never as far as I know bee...
Background A large colony lives in the Antarctic in a network of bases. They have so far evaded the dreadful worldwide plague. When they venture outside their base they don their climate-proof ...
Note: This is different from the previous question Building a full-sized Lego Earth - what would it look like at various levels?. In that case it was about making a solid full-size Earth from Lego ...
A perverse incentive is a reward system that has the opposite effect to the one intended. In Hanoi, under French colonial rule, a program paying people a bounty for each rat tail handed in wa...
Lego representations of Earth have been made at various scales, for example this one: Suppose Slartibartfast made a full-size Earth from Lego (including the oceans being represented as solid blo...
The Emperor of the World wants there always to be a full moon. His Scientific Advisor (the SA) comes up with a plan. He plans to cost out the venture, hand it over to the Keeper of the Treasury wh...
Most of what follows is scientifically dubious. I'm looking to clarify one aspect and one aspect alone. A small planet is being terraformed by an alien race who have been doing this for millennia....
An answer to the following question mentions a free online calculator for long-distance space travel. Software to ease my interstellar travel calculations I'm looking for a 3d simulator that accu...
Note: I am aware of this question Could two planets be tidally locked to each other so close they share their atmosphere? My question is not about that. It is specifically about human travel. By...
On the planet Blob there is an unusual phenomenon. It is known to emanate from the planet's core but 2018-level scientists have no understanding of it. The phenomenon Gravity isn't constant. It v...
A sentient species of water-dwelling aliens achieve space-flight. Their living quarters contain water [no free gases]. They have evolved over millions of years to regulate their buoyancy at will...
The outer layer of skin of a human is called the epidermis. It is supposed to be waterproof, however: Using any current science and substances, would it be possible for humans to survive for two m...
Take-off in a craft with rockets allows a gentle acceleration that doesn't kill the occupants. Given that the Moon has no atmosphere: Is there any current technology that would allow safe takeoff ...
A large (compared to Earth life) species of creatures live in space. They gain energy from interstellar dust and starlight. How they do this is a separate question so not relevant here. However the...
In its heyday Earth was a great interplanetary trading post on account of its low gravity moon which was used as a warehouse for all kinds of goods. The Moon was covered almost entirely in large w...
Popular science fiction is full of examples of people and objects being shrunk down to the size of insects or smaller. Let us assume that everything is shrunk. Thus an animal would still contain t...
Researchers create a sonic tractor beam By Hanae Armitage 27 October 2015 1:00 pm Using a simple set of loudspeakers, scientists have figured out a way to levitate and rotate object...
It is difficult to find statistics for the ratio of Lego men and women in the general population but from a non-scientific survey, I get the impression that Lego men vastly outnumber Lego women. Ye...
Everything on Earth and in the Solar system is as we know it. However it is discovered that we live in a small but unbounded universe. That is to say if we travel far enough in a straight line we w...
The universe is in a long, slow decline to darkness Sorry folks but it's true, read the article! Here's a much edited-down version: The universe is cooling down, its stars pumping out about h...
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