Taking a break from the physics of a potato cannon, Ryan Elmore, directed by Dr. Winslow, creates a weather station. With this station, they are able to calculate wind speed, temperature, and in the near future, wind direction.
Fueling up the grandmother cannon, Ryan Elmore sprays hairspray into the end of the cannon. This first try was unsuccessful, but after experimenting with the amount of fuel to put in the barrel, the team managed one successful fire from the cannon that day.
Getting bored firing at nothing, Dr. Winslow decides to try and hit the lightpost with the potato bullet. Long story short, he missed. Even a physicist can forget to account for the interference of wind.
Excited about finally being able to try out the huge potato cannon, the team gets ready to see how far this cannon can launch a vegetable! Even though the cannon only ended up actually firing twice, the team was able to take it back to the lab and work out the kinks. It now fires almost every time ignited.
Deciding to get outside the lab for awhile, the Physics Summer Research Team takes their potato cannons to the SNU soccer field to shoot off some vegetables. Here the team is assembling the smaller of the two cannons which ended up shooting the length of the field. Dr. Winslow even managed a goal from one of the shots!
Finishing off the show, Blake Jordan assists Dr. Winslow shoot off the "Candy Cannon." After the fire of the cannon, candy shot out all over the sanctuary and the kids went crazy. Note: Apologies to Oklahoma City First Church of the Nazarene for the destruction of the planters on the left side of the sanctuary. It was all for the entertainment of the children.
Further displaying the AMAZING properties of pressure, Dr. Winslow demonstrates the bed of nails with the "Winslow Sandwich": a bed of nails, Dr. Winslow, another bed of nails, a concrete block, and Dr. Cox's sledgehammer.
Not wanting to be shown up by the Mathematics professor, Dr. Cox has his stab at Chubby Bunny and makes it to 8 marshmallows until the bag is empty and he is forced to quit. Luckily everyone was done eating s'mores before the challenges were taken.
Displaying how cold liquid nitrogen is, Dr. Cox puts on a science show for the local children at Oklahoma City First Church of the Nazarene's Vacation Bible School. He was even able to make up a story to go along with their space theme and told the kids to imagine going to Neptune where the temperature is -320 degrees Fahrenheit.
Choosing the perfect PVC piping for the potato gun, Dr. Winslow instructs the students on why they need a specific size of pipe. The team came to Lowe's to get longer pipes to maximize the time the explosive pressure acts on the projectile.
Picking out the perfect pipe, Bre Simmons, Junior, gets a 10 ft. long piece of PVC piping. To maximize speed of the bullet, the team needs to figure out the optimum length of the barrel to accelerate the bullet, but also not too long to overdo friction, which decreases the exit velocity of the projectile.
Igniting the cannon, Ryan Elmore, Junior, uses a flame to clean the igniter. He is using Aussie hairspray as the fuel to shoot the metal projectile out of the potato cannon. An electronic igniter from a grill sets off the explosion.
Surveying the damage to some old physics journals which are no longer needed but now serve to stop the projectile, Bre and Ryan search for the projectile among the destruction. They can fire several projectiles at a journal before having to replace it.
Loading the potato canon, Bre Simmons, Junior, inserts a metal cylinder (the projectile) into the PVC pipe that acts as the barrel of the cannon. Their top speed for this first day of shooting was 133 mph!