tech e blog

08/08/2006

(Video) LED Time Fountain

Creatd by Nate True, "The Time Fountain" (fluorescent drops illuminated by LEDs) consists of "an old battery-powered small fountain as a base -- drops are pumped through a brass tube, falling out of the end at a very regular interval." Video after the jump.
A microcontroller coordinates the speed of the pump and the strobe rate of the LEDs
[via Make]

This entry was posted on 08/08/2006 02:06am and is filed under Technology, Video .
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There are 28 comments about this post (2 pages).

1
WTF??? can someone please explain haha and give instructions on how to make one myself!
2
[...] [Nate True’s Time Fountain] VIA [TechEBlog] Filed under: Unusual Comments: [...]
3
wow, this thing is incredible. I want one.
4
wow thats just freaking sweet! this guy should put it into production asap. I want one :D
5
[...] Hvis ikke det var fordi, at man selv skal lave “maskinen”, så tror jeg godt jeg kunne finde på at købe en The Time Fountain - det ser total genialt ud . [...]
6
Holy Crap!! I went to high school and college with that guy...I guess being nerdy really does pay off in the long run...
7
I don't understand what's going on.
8
So it's pretty much the same effect when you're at a club and dance to a strobe light, isn't it? Only with some sort of phosphorescent (sp?) liquid and flickering UV lights (black light LED's)? I'm just waiting for the first big LA club to install a gigantic one of these
9
The Time Fountain Fun with stroboscopic UV LEDs and luminescent-dyed water. There is a whole lot of physics and math behind this but I’ll spare you the boredom. Read about The Time Fountain over at cre.ations.net ...
10
thats awesome :) good idea :) now i want to build my own. the only amelioration is to detect and synchronize the drop with the start of the delay. but that's an amazing stroboscopic use ^ ^
11
oh ! i forgot i think the dye used is fluorescein the fluorescein can be pumped with 357nm or near UV light like dye laser with nitrogen laser pump
12
Absolutely amazing!!! I'll pay up to fifty bugs for this thing in the transparent PVC box... :-) Realy cool! Just go on...
13
The Time Fountain Fun with stroboscopic UV LEDs and luminescent-dyed water. There is a whole lot of physics and math behind this but I'll spare you the boredom. ;-) Read about The Time Fountain over at cre.ations.net
14
[...] linkage: via tech ed blog, nate true’s site [...]
15
The Time Fountain This Fountain is able to run in slow motion and even backwards. See for yourself And read the complete explanation afterwards. Why can’t I make up and build such things? ...
16
WTF ?! The back timing amazed me !! Great, but i still don't get it what happens in fact here and what black forces do that ?! Please somebody mail me an explanation of this "miracle"
17
when it goes backwards, its actually the video going backwards. notice how the drops break in two before touching the needle and then come together. obviously it can't do that.
18
No,actually the way it goes backwards is an optical illusion. Just like when you watch car comercials on tv, and it looks like the rims are spinning backward. No, that would be impossible, but the rims are spinning in a different rate than the film is taking frames. So, the water drops are going at a rate, which would explain why they look like the drops are floating, moving un slow-mo, and moving backward, it has to do with the rate at which the waters fall and the rate at which the LEDs strobe, but you would have known that, had your graduated
19
Yeah, the drops actually rise up broken and join back together, rather than splitting in two. It'd be very long winded to thoroughly exaplin why the illusion happens, but (basically as I can); when the drops appear to act strangely it is because as they fall down the light is reacting with the seperate drops at different positions. In the case of the backwards movement the light is flashing faster than the drops are falling, so when the lights flash the drops have not fallen as far as the drop before, and therefore appear to be higher up. It's a visualisation thing really, that was possibly confusing :D
20
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