Watch a tiny robot back flip through a real colon

A rectangular robot as tiny as a few human hairs can travel throughout a colon to deliver drugs by doing back flips, researchers report. Why the back flips? Because the goal is to use these robots to transport drugs in humans, whose colons and other organs have rough terrain. Side flips work, too. The robot…

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Some pre-existing conditions triple COVID death risk

Certain pre-existing conditions may double or triple mortality risk for COVID-19, researchers report. A large, international study of COVID-19 patients confirmed that cardiovascular disease, hypertension, diabetes, congestive heart failure, chronic kidney disease, stroke, and cancer can increase a patient’s risk of dying from the virus. The researchers say their findings may help public health officials…

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Automatic Hand-Wash Timer

According to the World Health Organization (WHO) guidelines, people need to wash their hands with soap and water at least for 20 seconds to get rid of any virus. Although you have a stopwatch on phones, wristwatches, and other electronic devices, it is not convenient to use them. Also, some people do not want to…

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