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Messages - sesyf

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Policy and solutions / Re: Trains, Trams, Subways and Buses
« on: September 30, 2019, 09:45:06 PM »
Weeellll... there are other opinions or discussins on the matter

In Britain there were several rail gauges in use so it would be interesting to have some more rigorous information why this specific gauge was selected.

I intended to add something about british gauges but my browser has a hiccup so perhaps later if more discussion is warranted...

Arctic sea ice / Re: The 2019 melting season
« on: July 03, 2019, 09:09:52 PM »
Hmph, too complicated...

The bearded vulture (Gypaetus barbatus), also known as the lammergeier (or lammergeyer) or ossifrage, is a bird of prey and the only member of the genus Gypaetus.

Policy and solutions / Re: Space colonization
« on: December 23, 2018, 01:40:50 PM »
Weeeelll... moon dust just got a lot more dangerous...

From New Scientist:

To estimate how many radicals would be produced in humans after exposure to lunar dust, Donald Hendrix at Stony Brook University, New York, and his colleagues took dust from two iron-rich minerals – olivine and augite – found on the moon, and soaked it in a liquid that simulates human lung fluid.

After 15 minutes, the two minerals had released about nine times more hydroxyl radicals per litre of fluid than quartz dust, which is highly toxic.

I do suspect that as we are adapted to our environment the very technical environment we would be forced to live in Moon and Mars (and also the gravity is weaker among other things) would be very problematic on many levels...

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