Prolonged exposure to artificial light prevents urban trees from adjusting to seasonal variations. Notice how the leaves of this tree have fallen, except for those directly under the streetlight. Recent research demonstrated how high-intensity light sources have the greatest impact on delaying leaf senescence, throwing off a plant response to the change of seasons. Peculiar image of the week via Physics FAU.
Streetlight Disrupts Seasonal Cycle of Trees
Should men be able to give birth to children?
Joyce Nabuurs: To me this question seems to be a logical next step in the emancipation movement of the past century. More and more women entered the workspace, but the responsibility for pregnancy and childrearing remained female.Comment