Watch the magic of invisible forces when a magnet bounces on a trampoline

[Carla_Sinclair]

Originally published at: https://boingboing.net/2019/02/05/watch-magnetic-field-lines-ar.html

…

[LurksNoMore]

Field lines are awesome.

[Faffenreffer]

[TobinL]

Well when a boy magnet and a girl magnet lust each other very much…

[reactionabe]

Every now and then I think the science demos I come up with are cool. Then someone does something like this.

[TobinL]

@reactionabe

Then someone does something like this.

The new high speed camera tech and the marginally reasonable availability to the consumer has been pretty damn awesome hasn’t it.

[PartyValleyHeights]

I’m not sure I needed to watch them build their little trampoline. They could have jumped right in.

[redesigned]

i’m glad they spared us what i can only imagine was an awful cleanoff task after each shot. magnets that strong covered in iron filings, couldn’t have been fun or quick unless anyone knows any tricks i don’t know about.

[Keith_McClary]

@redesigned

unless anyone knows any tricks i don’t know about.

Just use a stronger magnet. Or run the video backwards.

Actually, I wish they hadn’t reversed it - I wanted to see what happened to the last few filings that were not part of clumps.

[redesigned]

@Keith_McClary

Just use a stronger magnet.

lol. haha. that would get a percentage off, at which point you’d still be left with the most difficult part of the original task, that last stubborn x percent, and a new stronger magnet covered in filings (unless that one is sleeved, which these ones should have been). maybe some sort of electromagnet. hmmm…

[RickMycroft]

But when a girl magnet gives a boy magnet a dead squid – that had to mean something.

[Faffenreffer]

[ChristopherD]

Let’s take this up to the next level. Use multiple cameras and give us a Matrix-style freeze-frame revolution about the magnet to show us the effect clearly in 3D space.

[Cunk]

You might never get them apart if you bring a stronger magnet close to that one.

[ChuckV]

@redesigned

i’m glad they spared us what i can only imagine was an awful cleanoff task after each shot. magnets that strong covered in iron filings, couldn’t have been fun or quick unless anyone knows any tricks i don’t know about.

Heating a magnet will de-magnetize it, either temporarily or permanently depending on the temperature and length of exposure.

[NashRambler]

Fascinating! I especially enjoyed the different angles on the super-magnet shots.

[joey_bladb]

@redesigned

unless anyone knows any tricks i don’t know about.

These modern magnets come with an “OFF” switch. Kids have it so easy today.

[aacmckay]

[Mindysan33]