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42 points

Won’t homeless people just sleep on the ground now?

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54 points

You seem to assume that any logic or reason was used in the decision making that led to this action. But I assure you, as soon as racism, classism, or any other form of bigotry enters the process, any reason left jumps out of the window.

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25 points

Not if we can get some proper sidewalk spikes.

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11 points

Hi Jeremy, we’re aware your feet are bleeding while trying to catch a train, but homeless people were sleeping on the ground.

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6 points

Jeremy’s at fault for not wearing proper shoes, of course.

Realistically, it would be little rebar studs sticking a few millimeters out of the concrete. Refer to them as traction devices and suddenly you are a hero.

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6 points

The bare ground is way colder than a bench, since air is a good thermal insulator.

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2 points

Is that how that works? I’m not trying to be antagonistic or anything, I just heard the opposite is true when it comes to why bridges develop ice sooner than typical roadways do; because the ground holds more heat than the cold air does

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6 points

The reason bridges form ice before roads is that they are exposed to cold air on all sides and have lower total thermal mass, so conduction from the bridge to the air allows the temperature of the bridge surface to drop faster. The ground has nearly infinite thermal mass, and it takes a long(er) time for ambient air temperature to affect the surface temperature.

When you say “the ground holds more heat” you’re talking about that thermal mass. The temperature of the air is colder than the temperature of the ground, so yes from that perspective it “holds more heat.” But the temperature of a human is much much higher than the ground, and conduction is an extremely effective way to pull heat out of a human.

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1 point

Sleep on the floor of your basement to find out.

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2 points

Homeless people are desperate. They’ll sleep outside on the fucking pavement if it has an overhang and nobody bothers them. A place with walls and heating is fucking precious to em.

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