Health care workers have seen severe illness and death from COVID-19 for two years now in hospitals, and they are in the midst of another spike in hospitalizations.

In this video, we create a sonar bearing rate graph using vectors, showing how relative motion and vector math determine bearing changes over time. Learn the key equations, how to compute bearing rate ...

Rachel Pizzolato demonstrates the best exercise machine for fitness and fun. Winter storm drone footage shows frozen scenes from Texas to New York Enormous freshwater reservoir discovered off the East ...