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Old 03-04-2019, 04:51 PM   #5287 (permalink)
freebeard
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Robots don't need to pull weeds, they can just poke them back underground while they're still sprouts too small to grasp.

Hydoponics is demonstrable technology. Pick and place robots are a thing. It's just a matter of stacking them vertically.

Ontopic: Suspicious 0bservers: We're all gonna die dept.:

Abrupt global events in the Earth’s history: a physics perspective - GregoryRyskin
https://arxiv.org/ftp/astro-ph/papers/0312/0312617.pdf
Quote:
I show that a vast amount of seemingly unconnected geophysical and geological data can be understood in a unified way if the source of the Earth’s main magnetic field is a~200-km-thick lithosphere, repeatedly magnetized as a result of methane-driven oceanic eruptions, which produce ocean flow capable of dynamo action.
The world ends not with a bang or whimper, just a bad smell.

Data-driven model of the solar corona above an active region - J. Warnecke and H. Peter
https://arxiv.org/pdf/1903.00455.pdf
Quote:
Conclusions.In our model the energy input into the corona is similar as in the scenarios of fieldline-braiding or fluxtube tectonics,i.e. through the driving of the vertical magnetic field by horizontal photospheric motions. The success of our model shows the central role this process plays for the structure, dynamics and heating of the corona.
Solar fusion has the heat of a compost pile.
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