The capillary tube has been used as a refrigerant metering device for many decades. Many HVACR manufacturers are still successfully employing capillary tube metering devices in their latest equipment.

Fill a narrow glass capillary tube with water, then turn it horizontal. Conventional wisdom says that the water will remain inside the tube. But a group of scientists in Spain and the UK has found ...

There are varying types of symptoms that can occur when a refrigeration system has an overcharge of refrigerant, and these symptoms vary depending on the type of metering device used. These are the ...

Clinking your glass of beer often leaves its contents sloshing back and forth. Soon, though, the motion stops, your drink settles, and you can sip without getting foam on your nose. The foam helps ...

A new way of looking at hummingbird tongues sees them mainly as long, skinny pumps. This view challenges an old notion of how hummingbirds sip — that nectar flows up open grooves in the tongue the way ...