Viruses differ greatly in size, the smallest being about 20 nanometers in diameter to the largest measuring some 400 nanometers across. For reference, a human hair is about 60,000 nanometers in ...

One interior design detail that’s almost certain to change post-COVID-19 is the ability to open doors and perform other tasks hands-free. It’s likely that we’ll see far more automatic doors, even at ...

Whether you’re on a business trip, flying solo or traveling with friends and family, staying somewhere you feel safe and secure is a top priority. While the hope is that most places can provide this, ...