‘We don’t know the answer’: The mystery of the fluorescence quantum dot

A mystery box electronic drum set has been given away by a mystery box owner.An electron configuration diagram (ECD) was used to define the electron state of a drum set.The drum set was sold at the mystery box on Saturday.The set was purchased for $99.95 and sold for $49.99.An unidentified mystery box seller said that […]

How to use a COVID-19 vaccine to protect your skin

On March 9, the world witnessed a milestone in the fight against COVID: The first human case of the coronavirus was confirmed in the United States, and the virus has since spread throughout the world.This has been the most rapid and deadly coronaviral pandemic since 1918, with more than 6,000 deaths, and a global toll […]