In #MESExperiments 50 I measure the drop rates of magnets in attraction, magnets in repulsion, and a nonmagnet when placed in an Atwood machine with the same counterweight. The magnets in repulsion fell 12.11% slower than the magnets in attraction, while the non-magnet fell 3.64% faster than the magnets in attraction. While not conclusive, these results strongly suggest that magnets in repulsion do fall slower in gravity as Boyd Bushman, senior engineer at Lockheed Martin, had claimed. I will perform this experiment at higher heights in the near future so stay tuned!
#antigravity #experiment #Atwood #science #physics
Links original video and more info
Timestamps
Atwood Machine invented by George Atwood in 1784 to test classical mechanics: 0:00
Mass measurements: 0:18
Counterweight: 332.40 g
Magnets in attraction + bag: 343.98 g
Magnets in repulsion + bag + glue: 344.78 g
Nonmagnet: 344.08 g
Height measurements of counterweight: 0:43
Magnets in attraction: 90.4 cm
Magnets in repulsion: 92 cm
Nonmagnet: 91.4
Start of Atwood machine test: 1:02
Magnets in repulsion fell the slowest, the nonmagnet fell the fastest: 1:55
Results of the experiment: Magnets in repulsion fell 12.11% slower than magnets in attraction: 2:02
Derivation of the acceleration rate of a following object: 2:31
Derivation of the acceleration rate in the Atwood machine: 2:47
Calculated acceleration rates: Atwood predicted rate was 58.53% more than the actual acceleration rate for the magnets in repulsion: 3:20
Additional information: 4:00
My first attempt at gluing magnets in repulsion failed when using shoe glue: 4:03
My second attempt involved using a metal epoxy to glue the magnets: 4:15
I luckily filmed the Atwood machine experiment before the magnets ripped the glue apart: 4:23
Magnetic viewing film of the magnets, note the magnets in repulsion have 2 Bloch walls or nodes at the center, and smaller fields at the poles: 4:40
I will try doing the experiment at a higher height on my balcony in a future video: 4:59
Results appear to validate Boyd Bushman's claims that magnets in repulsion fall slower in gravity: 5:08
March 12, 2009 replication attempt by dropping magnets from 9 meters: 5:21
Stay tuned for #MESExperiments 51...
Screenshots of the Experiment
For reference, here are the screenshots of the key parts of the experiment.
