'Speed limit c arcminutes^2 per steradian'

3039. "Human Altitude"

'I wonder what surviving human held the record before balloons (excluding edge cases like jumping gaps on a mountain bridge). Probably it was someone falling from a cliff into snow or water, but maybe it involved something weird like a gunpowder explosion or volcano.'

3040. "Chemical Formulas"

'Can you pass the nackle?'

3041. "Unit Circle"

'They're continuing to search for a square with the same area as the circle, as efforts to construct one have run into difficulties.'

3042. "T. Rex Evolution"

'Unfortunately, body size and bite force continue to increase.'

3043. "Muons"

'Update: I've been banned from the physics department for the way I pronounce "Doppler effect."'

3044. "Humidifier Review"

'They should add a little sticker that certifies that the humidifier supports water conservation, but in the sense of energy conservation or momentum conservation.'