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Joined 1 year ago
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Cake day: June 14th, 2023

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  • For those playing at home, try this:

    Heat up a frying pan on low heat and throw some water in there. It sizzles and bubbles weakly but evaporates quite quickly.

    Now heat up the pan over medium-high heat. Throw water in there and watch it turn into little marbles that dance around the pan. It seems much more violent but notice that the water marbles last way longer because they’re actually floating on a cushion of steam. This is also why they seem to fly around pan so rapidly: the steam cushion removes almost all of the friction.

    This is called the Leidenfrost effect. Very high temperature frying pans actually conduct heat into the water more slowly than lower temperature ones because the steam cushion acts as an insulator.

    Well it turns out if you put your hand in molten metal the same thing happens! The moisture on your skin flashes to steam and creates a barrier which slows down the conduction of heat into your skin. Of course, if you fall into molten metal you may not be able to get out. The Leidenfrost effect also doesn’t do anything to protect you from the intense thermal radiation being emitted by the molten metal!

    Funnily enough, this also happens if you pour some liquid nitrogen into your hands. It dances around just like the water does in the hot frying pan. Your skin is like a hot frying pan compared to liquid nitrogen and the nitrogen gas produced is like steam in this case.







  • Same story in Canada. A big decline in total farmland (decline of 13.1 million acres or 7.9%) but an increase of 3.6 million acres in crop land. This represents an increase in intensity and density of farmland and a decrease in farmland used for non productive applications.

    One of the big differences recorded in this report is a 62% decrease in the number of people living on farms from 1971-2021. A decrease in the amount of farmland used for living spaces (farmhouse, garden, garage) may be a big factor in the above crop:farmland ratio changes, as would a consolidation of farms (total number of farms decreased from 246K to 189K from 2001-2021).

    What this all says to me is that economies of scale play a huge role in North American farming, and that our subsidy structures do not favour small farms.


  • They get more viewers when they do. Streamers do exist who don’t use a webcam, don’t talk to viewers at all, and only show gameplay. They get some viewers but not nearly as many as they would otherwise.

    People like interacting with streamers. They especially like seeing the streamer get excited when they donate a bunch of subscriptions or send a bunch of money. Popular streamers will even have animations and sound to make a big deal out of this.

    The truth is that full time streamers are supported by a small minority of viewers who donate large amounts of money. This makes streaming somewhat akin to prostitution in my view. But there you have it!