Here are some of the most interesting experiments and demonstrations that could be done with Rubins sceintific equipment. check out our                      channel for more videos
  • Millikan’s oil drop experiment measured the charge of an electron. Before this experiment, existence of subatomic particles was not universally accepted.

  • Millikan’s apparatus contained an electric field created between a parallel pair of metal plates, which were held apart by insulating material. Electrically charged oil droplets entered the electric field and were balanced between two plates by altering the field.

  • When the charged drops fell at a constant rate, the gravitational and electric forces on it were equal. Therefore, the charge on the oil drop was calculated using formula Q = m⋅gEm⋅gE Millikan found that the charge of a single electron was 1.6 x 10-19 C.

The wind tunnel is used to copy the actions of an object in flight. Rubins wind tunnel is lightweight , easy to assemble , and allow control and computer monitoring of  multiple parameters, so that controlled investigation of aerodynamic principles is possible.

Kundt's tube is an experimental acoustical apparatus invented in 1866 by German physicist August Kundt for the measurement of the speed of sound in a gas or a solid rod. The experiment is still taught today due to its ability to demonstrate longitudinal waves in a gas (which can often be difficult to visualise). It is used today only for demonstrating standing waves and acoustical forces.

in the Kundt's tube, a standing wave is set up and the dust visibly hops up at certain points along the tube. The separation between two of these spots is half a wavelength, so the wavelength of a sound wave can be visualized directly.

A hunter with a blowgun goes out in the woods to hunt for monkeys and sees one hanging in a tree. The monkey releases its grip the instant the hunter fires his blowgun. Where should the hunter aim in order to hit the monkey?

the device we 

built allow changing the angle between the firing and the falling object  to  investigate this riddle in various conditions.