Christmas Snow‭

My experience with mousetraps has intrigued me to think that way. They exploit every flaw again and again to get the food out of the trap. Once a trap holds on to one they all learn to avoid it. Th...

1 answer  ·  posted 7y ago by Christmas Snow‭  ·  last activity 7y ago by Christmas Snow‭

Bamboo, horsetail and many grasses incorporate silicates into their tissues to protect themselves from grazers. Diatoms use it to build a glassy outer shell. Carbon is still the choice for metaboli...

2 answers  ·  posted 7y ago by Christmas Snow‭  ·  last activity 7y ago by Christmas Snow‭

The classical rigid airship uses a heavy envelope which accounts for the large buoyancy balloon. This comes on account of aerodynamics. My first concept was a thin and long "cigar" where the cockpi...

4 answers  ·  posted 7y ago by Christmas Snow‭  ·  last activity 7y ago by Christmas Snow‭

The world consists of actual humans who were moved to another planet by aliens, during biblical times, hence having an influence on their religion. The planet is terraformed with earth-like conditi...

4 answers  ·  posted 7y ago by Christmas Snow‭  ·  last activity 7y ago by Christmas Snow‭

The scenario is based on the fact that a tight binary of two neutron stars does not hold for long: The two bodies lose energy in the form of gravitational waves and they spiral towards each other a...

1 answer  ·  posted 7y ago by Christmas Snow‭  ·  last activity 6y ago by Christmas Snow‭

What biochemical reactions might be employed by plants to harvest heat energy when light energy is scarce or even missing? What is the temperature range over which this biochemical reaction can wor...

2 answers  ·  posted 7y ago by Christmas Snow‭  ·  last activity 7y ago by Christmas Snow‭

I has this idea for quite a while. I searched for information on the internet but I could see no reference. All searches gave results on the same idea but the effect was not what I'm looking for. ...

5 answers  ·  posted 7y ago by Christmas Snow‭  ·  last activity 6y ago by Christmas Snow‭

I watched this video. A network of pipes blows air at the bottom of a bathtub filled with sand. The sand behaves just like water. Objects can float or sink in it. Children can play in it. So, my c...

2 answers  ·  posted 7y ago by Christmas Snow‭  ·  last activity 7y ago by Christmas Snow‭

A scenario in the far future -- The moon has been successfully terraformed. All problems have been worked-out, from flinging volatiles into collision course with the moon, up to creating and retain...

3 answers  ·  posted 6y ago by Christmas Snow‭  ·  last activity 6y ago by Christmas Snow‭

My world is at the outer edge of the habitable zone. There is enough heat and geological activity to start life, but a snowball earth is looming and threatens to freeze it all. There is some spring...

3 answers  ·  posted 6y ago by Christmas Snow‭  ·  last activity 6y ago by Christmas Snow‭

Cold and Flu, are common viruses which normally infect us in the cold of winter. Ironically, those people who always keep themselves warm, stay less out-of-the-house and office, keep their windows ...

6 answers  ·  posted 5y ago by Christmas Snow‭  ·  last activity 5y ago by Christmas Snow‭

A newly-built base on the moon has the first two compartments of a pressurized greenhouse farm. An airlock system automatically seals one compartment off the others when pressure sensors indicate a...

3 answers  ·  posted 5y ago by Christmas Snow‭  ·  last activity 5y ago by Christmas Snow‭

I have an idea for an energy source for a colony on a cold world with not enough solar power. Is my idea workable, or is it debunked as perpetual motion machine? Here is the set-up and my plan: Sc...

4 answers  ·  posted 5y ago by Christmas Snow‭  ·  last activity 5y ago by Christmas Snow‭

A familiar scenario in scifi: a bubble of space is isolated artificially from the outside world by means of time dilation: time inside the bubble moves more slowly than time outside it. Assume that...

1 answer  ·  posted 5y ago by Christmas Snow‭  ·  last activity 5y ago by Christmas Snow‭

They do not necessarily meet humans and try to interact with them. This question is more about the technical possibility/impossibility of 4D aliens being able to "analyze" the inner structure of ou...

4 answers  ·  posted 5y ago by Christmas Snow‭  ·  last activity 5y ago by Christmas Snow‭