What are the main meteor showers, and how can you watch them?

A meteor shower happens when Earth passes through a stream of debris left by a comet, or occasionally an asteroid. The particles, mostly smaller than grains of sand, hit the atmosphere at tens of kilometers per second and burn up as streaks of light. Because Earth crosses the same streams every year, showers return on … Read more

How to choose and install a new shower head

A new shower head is one of the cheapest upgrades in a bathroom, and replacing one takes about fifteen minutes. The harder part is choosing among the dozens of models on the shelf. Types of shower heads Flow rate and water use US federal rules limit new shower heads to 2.5 gallons per minute (gpm). … Read more