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Activity for Mark Gardner‭

Type On... Excerpt Status Date
Question Meteorological consequences of walls reaching into the sky, enclosing a large area
Suppose we walled off a 1000 km square. These walls would be made of unobtanium (so they don't break), and have no cracks or holes that go all the way through. They are also around 15 kilometres high, to stop birds flying over. No living thing can cross the walls. This is a major element of my setti...
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over 4 years ago
Question Biological reason for organically formed crystals in or outside of body
So, it is relatively common to have various creatures grow crystals. This generally happens outside of the body (at least partially), but internal crystals aren't unknown either (see for example, every non-earth-native animal from Brandon Sanderson's Stormlight Archive, which use a gemstone to collec...
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over 4 years ago
Question I have a way of giving something negative mass. Did I just end the world,or usher in a golden age of space travel?
So, somehow, I have discovered a process that makes an objects mass negative. Not its weight, its mass (although, I guess that the weight would also become negative). The thing is, before I try it, I want to know if this is a bad idea. A number of scary words spring to mind, such as "strange matter...
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almost 5 years ago
Question Would an anti-gravity organ allow kaiju to avoid cube-square problems?
It is (around here, anyway) quite well known that science does not allow the existence of kaiju, mainly because of the cube-square law. bones rip themselves out To my understanding, this boils down to "If it is twice as high, it is eight times as heavy, but its legs can only support four times the ...
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almost 5 years ago
Question The students have blown up the school using stuff that looks like snow. How?
In Hungarian, there is a new-ish folk-song sung by school-children who dislike school whenever it snows to the tune of Twinkle, twinkle, little star: Hull a pelyhes dinamit, Robbantsuk fel a sulit! Minden gyerek várva vár, Hogy repüljön a tanár. [irrelevant verses removed] ...
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almost 5 years ago
Question weather after the earth gets flooded
tl;dr : the earth has been gradually flooded, over the course of a few hundred years. Also, there are now large lumps or ice raining out of the sky (not very often), causing massive tsunamis. I have recently watched a sort-of documentary, about what would happen if a roughly moon-sized icy asteroid ...
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about 6 years ago
Question Effect of multiple tons of dry ice being dropped bomb-like into lake near a city
I have a bomberplane capable of carying a nuke. A large nuke. Let us say that I don't like the idea of wiping a city from the face of the earth. Instead, I decide to mass-produce solid CO2, and drop a lump (say, 2 cubic meters) of it into a lake near a large city. If you put a small amount of dry i...
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over 7 years ago