U-tube

Horseshoe-shaped tube

A U-tube is a tube bent into a U shape, used in scientific and industrial applications.

In chemistry, U-tubes hold drying agents or connect apparatus.

A U-tube manometer measures pressure differences by the height of liquid in each arm.

The shape appears in plumbing traps, where standing water blocks sewer gases. (Capitalized YouTube is the video platform.)

manometer

pressure

Force upon contact

hydrostatics · column · differential · measurement · gauge · calibration · siphon · meniscus · density · capillarity

labware

glassware

Drinking containers of silica

trap · bend · tubing · apparatus · distillation · reflux · flask · stopper · clamp · stand

acoustics

resonance

Amplified oscillation at natural frequency

vibration · harmonics · oscillation · pitch · tone · amplitude · acoustic · tuning · resonator

shape

bend

Curve or flex

  • curveSmooth, angleless line
  • loopCurve closing on itself
  • horseshoeCurved metal hoof protector

semicircle · arc · curvature · elbow · fitting · plumbing · trap · drain · P-trap · S-bend

video

YouTube

Video-sharing website

upload · playlist · vlogger · content · monetization · thumbnail · livestream · trending · views · likes

Categories
Opposites
shape/geometry

U-tubestraight pipe

Uninterrupted cylindrical conduit

Family

tube

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Concrete · Rated G