Galuvian
Galuvian t1_iqvulqv wrote
Reply to comment by Academic_Guava_4190 in Driving thru Salem: what is a flashing green traffic light supposed to mean? Instead of solid green. by human-potato_hybrid
Pretty much. But it's based on an older convention for pedestrians. mriguy posted about it above.
Flashing green -> Red + Yellow
In effect, the driver should behave just like a flashing yellow turning to red. But the flashing green was used for pedestrian crossings. Most of these were converted to the modern walk buttons with a standard red light. But that takes funding. The new cheaper pedestrian crossings with the yellow LED lights have the same function now.
Galuvian t1_ir1ylcd wrote
Reply to comment by DukeMikeIII in TIL SonoPrep is a method of painless drug administration through human skin by rendering the skin permeable to fluids via the use of ultrasonic wave. The skin goes back to its normal state within 24 hours. by ThichXemHen
Turns out hypospray has existed for decades but has not gained widespread adoption due to concerns over spreading diseases.
https://en.m.wikipedia.org/wiki/Jet_injector