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 multiple ways a thermostatic expansion valve (TXV) can become restricted. Remember that a TXV becoming partially restricted will have the same symptoms as a restriction anywhere in the ...

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 ...

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 ...

Part of Biology (Single Science) Cells, organ systems and ecosystems The Visking tubing is the selectively permeable membrane. Water moves by osmosis from the high water concentration (dilute solution ...