Jolly Bulb with Gauge Gifts Aluminum-cased plotting compass with a

Aluminum-cased plotting compass with a glass face and a dial marked with principal points

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guided exercises that interact with the Airbag Systems simulator

transmitting maximum light when their axes align and nearly extinguishing it when crossed at 90 degrees

Jolly Bulb with Gauge Gifts Aluminum-cased plotting compass with a60 mm dia. Bulb connected to a bourdon guage. Gauge is calibrated in kg cm2 and in psi. Jolly bulb is 60mm diameter and is directly connected to a bourdon gauge. Use for investigation of gas at constant volume By inserting the glass bulb into either warm or cold water the expansion and contraction to the air contained in the bulb can be seen as a pressure change on the gauge. Gauge is calibrated in kg cm2 and in psi.