› added 3 years ago

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TIL that aluminum foil reacts with acids like tomato sauce and can actually start to dissolve if the two are paired with a different metal like stainless steel or cast iron, essentially creating a rudimentary battery.

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ADbvg TIL With the introduction of small portable solar scopes, hydrogen alpha and calcium filters has now become very popular. H-alpha is in the red end of the visible solar spectrum and it allows one to see solar prominences, filaments, plages and occasional flares on the Sun
5VYb9 TIL about birds anting themselves. Many bird species purposely get bitten by ants, which releases a venom that kills parasites on the bird’s feathers.
m1kby TIL we perceive being wet primarily from the coldness of the of water evaporating. For a liquid to turn into gas, energy is needed (ex motion or heat), so energy is expended in the process. In this case from the heat of our skin. A fridge/freezer uses the same principle).
6E477 TIL that SeaWorld did everything in its power to conceal the mistreatment of orcas and the killings and injuries induced by their most popular orca, Tilicum, going so far as to blame the trainers knowing full well the whales were being mistreated to the point of mental and physical degradation.
8NO4 TIL: Tapinoma sessile, the odorous house ant, smells like blue cheese and coconut when crushed. And they’re becoming a dominant urban pest.