A harmonograph is a complex linking of pendulums to draw wonderful and complex designs. Rob shows how to make a very simple one from everyday materials which draws these beautiful patterns with a trail of sand.
Пікірлер: 36
@Maninawig Жыл бұрын
Every time Rob or Deane says "sand," I am reminding of Australia's singing sand.
@michaelslee4336 Жыл бұрын
Man I love this show, as a kid and still now. They had no problem with telling kids to go to the stove and heat up a skewer with fire. These days car batteries have a warning sticker on them stating not to drink the contents.
@WrinkleRelease Жыл бұрын
Rob, you just taught me what a harmonograph was and now I’m endlessly producing art in this style. Thanks, mate!
@CuriosityShow Жыл бұрын
My pleasure - Rob
@MileyonDisney Жыл бұрын
That's pretty cool. I've never considered a double-pendulum like that. I won't be drawing with sand, but it does open up new idea possibilities. And I guess that's part of what the show was all about.
@timharig Жыл бұрын
You can use a simple graphing utility. The parametric curves produced are of the form x=sin(at+b) y=(ct+d). Adjust a,b,c,&d to obtain different curves. Graph (x,y) along a range of t.
@boomstand2872 Жыл бұрын
$20 notes no longer have those patterns, since the paper note was replaced by the polymer one
@Zzudwa Жыл бұрын
But if you are lucky to find and old banknotes in you great-grandmas old mattress you still can exchange them to plastic banknotes in most of commercial banks, however they will take tome to send them to reserve bank to confirm validity.
@SaturnCanuck Жыл бұрын
Don't forget, though, a free pendulum will stay in one place as the Earth revolves and there will be a pattern it will just take 24 hours.
@TheDumbDonkey Жыл бұрын
Amazing 👏
@duffman7065 Жыл бұрын
Try it on your friends.
@bradthurkle7217 Жыл бұрын
Cool 👍
@FreakinFred08 Жыл бұрын
I built one of these and used goat‘s blood instead of sand. It created a pentagram design. What should I do now?
@kenmathewson8972 Жыл бұрын
Ye gods I love these clips
@mce_AU Жыл бұрын
Try it on your sandy friends.
@89horizon Жыл бұрын
Try it on all your swinging friends! Ummm on second thought...
@darren8269 Жыл бұрын
Terrific! Very interesting.
@MushookieMan Жыл бұрын
Just heat it up on the stove, and it will melt its way through. What a time.
@timharig Жыл бұрын
Still works with most plastics today.
@MushookieMan Жыл бұрын
@@timharig I meant the safety aspect of telling a child to do that
@E_y_a_l Жыл бұрын
@@MushookieMan If a child that is too young to do this have access to a sharp metal object and a stove then it's their parents fault, not the show.
@James-kv6kb Жыл бұрын
@@E_y_a_l well said. lack of parental guidance has got nothing to do with the producers of this show . Unfortunately if you treat kids like idiots they will behave like that treat them like intelligent human beings and show some guidance and there's no problems
@E_y_a_l Жыл бұрын
@@James-kv6kb Exactly, I've watched this show as a child 30 years ago, I didn't set the house on fire, probably because I had parents that made it very clear that using something like a stove by myself is dangerous, nobody should expect TV shows to do the parents job of educating their kids.
@andreaskallstrom9031 Жыл бұрын
Super interesting!
@MrKOenigma Жыл бұрын
I love his watch
@supermewkitty7025 Жыл бұрын
What if you use ketchup and mayo?
@godhell8039 Жыл бұрын
Jackson Pollock approves.
@JohnLeePettimoreIII Жыл бұрын
but royko is appalled. 😃
@Cahos_Rahne_Veloza Жыл бұрын
@0:50 Absolutely love that close up view of Rob's Immaculate Goatee on the upper left 😘
@garrysekelli6776 Жыл бұрын
İ think these are more properly called lessigeux figures. Probably butchered his name. Some frenchy.
@smadaf Жыл бұрын
So you believe they "probably" are NOT "properly called" that? Maybe it's worth your time to verify what you want to say before you offer it to countless people to spend much more total time reading.
@garrysekelli6776 Жыл бұрын
@@smadaf not sure what you are trying to say. Lisigeux might be his name. Will have to google.
@garrysekelli6776 Жыл бұрын
@@smadaf lissajous is the proper name. Some french fkkr. İ can never spell properly SPK whp diego names like that. Sry.
@timharig Жыл бұрын
Jules Antoine Lissajous Lissajous are parametric curves of the form: x = sin(at + c), y = sin(bt + d)
@TheKnobCalledTone. Жыл бұрын
@@timharig A Lissajous curve that most Australians would recognise is the ABC logo. (that's the Australian Broadcasting Corporation for any Americans that might read this comment)