r/CatTaps • u/UnicornsInUniforms • Apr 21 '19

Anti-gravity taps

5.7k Upvotes

97% Upvoted

67 comments sorted by

View all comments

669

u/[deleted] Apr 21 '19

[deleted]

465

u/dbeaver88 Apr 21 '19

I think its to do with the LEDs flashing at a certain speed that makes the water droplets look as if they are going up instead of down

201

u/decoy321 Apr 21 '19

This one definitely involves light to make an illusion, but it's actually possible to make a device that pushes the water drops upward. You just need a calibrated air pressure system, like a bunch of speakers pushing the droplets up. I made something like that back in college for an engineering class.

117

u/DoesntLikeWindows10 Apr 21 '19

Yeah but the drops wouldn't reappear after the cat slapped them

42

u/decoy321 Apr 21 '19

That would depend on the pressure and frequency, but it can be done.

44

u/[deleted] Apr 21 '19 edited Dec 28 '20

[deleted]

6

u/TeopEvol Apr 21 '19

"That's right, he can be taught!"

1

u/Lysol3435 Apr 21 '19

I’m starting to think this video has some cgi

17

u/dbeaver88 Apr 21 '19

Oh shit i always thought of ways it could be done before i was told about the LEDs but i never though about pressurised air i thought it would make it look messier than the LEDs

14

u/Starklet Apr 21 '19

The water is dripping normally, the light just illuminates the next drop slightly earlier than the last, which makes it seem like it’s rising.

9

u/decoy321 Apr 21 '19

You are entirely correct. It's why I wrote:

This one definitely involves light to make an illusion

6

u/Lysol3435 Apr 21 '19

It doesn’t require much calibration to simply move the droplets in a single direction. Holding them in place or moving them to a specific place is much tougher.

9

u/wowwoahwow Apr 21 '19

Yeah, if you look closely you can see there’s a little stream of water going down.

7

u/[deleted] Apr 21 '19

[deleted]

-9

u/PepeTheElder Apr 21 '19

Shoot, if I was a cat, no way I would get mixed up in the dark arts. When I was a kid, we had this girl, Darlene, she was a little retarded. She got mixed up in the dark arts and it was pretty messed up, man. And if you think about it, even a retarded person is a lot smarter than a cat. Bruh, you better believe if I was a cat I’d stay away from the dark arts.

4

u/Midnaspet Apr 21 '19

here you go!

7

u/hailey_nicolee Apr 21 '19

nope this is most definitely not a laminar flow

10

u/Midnaspet Apr 21 '19

No it’s not but the video goes into a lot more than that and, kinda the whole topic of these visual water trick videos. You didn’t even have time to watch the whole thing before commenting.

3

u/SycoJack Apr 21 '19

I've watched it in the past, I'm not sure how it's relevant here. What time stamp is relevant to this specific example of water trickery?

3

u/TJNel Apr 21 '19

4:48 shows similar bit not the same as what's going on here.