Spectrum Tube - Nitrogen Stopwatches & Timers

Spectrum Tube - Nitrogen Stopwatches & TimersTo study Spectral Lines of Pure Elements Gases. Gas under pressure in the tubes is used to produce a light for spectral analysis. Brightness of light depends on the nature of gas. Optimum intensity, line resolution and longer life. Metal ends with long life electrodes. About 26 cm long, with 90 100 mm of central capillary. For intermittent use only, not to be used as a lamp source. These are designed to operate 30 seconds ON~30 seconds OFF. Need

Imprinted with "Crossing Guard" in black

includes 1 valve and 1 Plug

On heating

Play on carpet or putting green with 1 to 4 players

Dim: 39"H x 28"W x 17"D

When sound level reaches 15 decibels above set level

Define your court with the 1/4" diameter

Easily tipped for easy mobility and transport

and evaluate scientific principles in action

Audible Alarm at completion of countdown

When the fan rotates it produces electricity and lights up a small bulb and also a voltmeter which is connected which indicates the amount of current being produced

This deluxe set is the perfect sized classroom set for learning measurement equivalents