How does weather radar work?

How does weather radar work?

A radar unit consists of a transmitter and a receiver. The transmitter emits pulses of microwaves, a type of radio waves, outward in a More »

How does fog form?

How does fog form?

How does fog form? Photo: NASA Fog is a cloud in contact with the ground. When the relative humidity approaches 100 percent, water

Is global warming real?

Is global warming real?

Is global warming real? Image: NASA Over the past two decades, the global average surface temperature has increased noticeably. This

What are growing degree days?

What are growing degree days?

What are growing degree days? The Growing Degree Day, or GDD, is a heat index that can be used to predict when a crop will reach

Do tides and seiches occur on lakes?

Do tides and seiches occur on lakes?

Do tides and seiches occur on lakes? NOAA Tides are changes in water level caused by the gravitational pull on water by the moon and,

What makes it feel “muggy”?

What makes it feel "muggy”?

Summer days are referred to as “muggy” when they are very warm and humid. The word “muggy” is believed to come from the Middle English More »

Sun pillar

Sun pillar

Sun pillar Sun pillar at sunrise by CaptPiper The other morning, I saw a column of light above the rising sun — what was that? A

Are raindrops tear-shaped?

Are raindrops tear-shaped?

While some cartoons and some science diagrams draw raindrops in that shape, raindrops are neither tear-shaped nor spherical. Due to the More »

What is the cause of strong winds?

What is the cause of strong winds?

What is the cause of strong winds? Photo: wwwuppertal The wind is simply air in motion, flowing from high atmospheric pressures to low