Science off the Sphere: Space Soundwaves II- Electric Didgeridoo

[GrizzlyFist]

You can play didge off of any tube type pipe. I have a piece of home-depot bought pvcp and it sounds amazing!

[Sweatyfleariddledcamelblanket]

controlled hi and low-pressure zones in the water droplets very interesting I think you guys go down as the first Didgeridoo players in space. 
very cool

[oystercatcher]

This was just the best! The intersection of many of my interests and very funny too

[Boxrz]

Haha I love Don Pettit. He knows how to get the most out of his space travels!

[ronniepage]

this guy has an amazing sense of humor

[jq]

Most professional didgeridoo players look like Australian Aborigines. But that's some pretty awesome didge playing by the American fellow.

[nogtname]

I would be that the force of the surface tension is dependent on the area, which for a sphere is a squared value. So when you added more water the strength changed greatly.

[DeanMetalAngel]

This is awesome. On a side note, his voice sounds quite a fair bit like Billy West's LOL.

[marshallhippie]

im sharing this on my fb going to get my nerd-on today =) and for the question my initial guess is that a smaller body of water would maintain its structure better but no thought behind it, ty guys

[ideagirlconsulting]

so cool watching and sharing ur video here in canada

[DelNardRowen]

I'm thinking that maybe the larger volume of water = greater dissipation of energy? Smaller droplet size = higher energy value arriving at the boundary separating water and air. Also, is the surface tension of the water important? Does the mechanical/structural strength value of the water surface tension change with surface area size?

[mnface]

The Larger sphere's have a larger volume and greater surface area enabling the resonance to dissipate more homogeneously throughout its mass. I think the larger sphere's of water would require a wave amplitude proportional to their volume in order for the resonant oscillation to exceed the surface tension potential as in the smaller water droplets? The term float-let or cling-on-let seems more relevant up there. No clear balloons, table salt and cold glue or silicon on that dragon X delivery?

[OutbackCatgirl]

He's actually pretty good with his makeshift didgeridoo.

[vladimirsmich]

@Meekayell in much simpler terms, the more water that is placed, the higher the surface tension of the water

[jcoronet]

It looks like when they were spewing off water droplets it was at a certain frequency. I would think that the change in the sphere size brought the spheres resonance frequency out of the range of the "didgeridoo".

[pmoneyploof]

The larger volume of water adds more surface area for the water to distribute the reaction of the sound waves.

[kinsmed]

Funniest thing I've seen in a week AND it was educational.
Teacher's take note.

[toddscdavidson]

Can we found out how the other astronauts felt at having their peace disturbed by spontaneous didgeridoo playing? Did you have to promise not to try making bagpipes next?

[Arwiiss]

Just wondering once astronauts gets used to let the stuff float freely in weightless environment do they experience any issues back on earth? Like for example they take an egg and let it 'float' while they search for a pan :D

[JustinLiang]

I'm going to guess that there is more surface tension to hold the water, that way droplets do not eject as often.