Borosilicate Glass Eudiometer Tube, 100mL, 0.2mL Graduations Glassware_Glass Flasks 25-inch Atwood machine with two

25-inch Atwood machine with two 2-inch blue-plastic pulleys on an aluminum rod

providing lightweight projectiles for collision-and-ramp experiments where steel or glass would carry too much momentum or break on impact

Speed-controlled 6V motor driving two cams pumps four spring-mass systems at any chosen frequency

Spare pack of ten low-mass pith balls sized for the standard pith-ball electroscope

the device can save the data to a computer via USB or WIFI

Borosilicate Glass Eudiometer Tube, 100mL, 0.2mL Graduations Glassware_Glass Flasks 25-inch Atwood machine with twoBorosilicate 3. 3 glass eudiometer tube with 0. 2mL graduations, autoclavable and thermal shock resistant for precise measurement of gas volumes evolved during a reaction.