When you’re standing on a bike with one pedal up and the other down, and you pull the lower pedal backwards, you would think the bike would move forward. But try it and you’ll see that the bike will actually move backward! It turns out that as the rider moves each pedal forward, the bike goes along with the pedal’s movement. So when the rider does the opposite, so does the bike. Read full article here
Societal Issues
To curb drug deaths, communities turn to Reddit, texts and wastewater
With drug overdose deaths on the rise, authorities are attempting to curb the epidemic by tracking and sharing information in real time. In one unique effort, a nonprofit in New York City is using drug-testing equipment and stamping or marking habits of dealers to identify drug batches that may endanger users. Other approaches are also being used, such as monitoring drug-related chatter on Reddit and analyzing local wastewater for opioid and other drug levels. With the combination of these efforts, researchers hope to put a dent in the opioid crisis and reduce overdose deaths. Read full article here