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Mark
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Re: youtube

Post by Mark » Sat Dec 28, 2013 4:30 pm

An interesting make-and-brake device using a kind of Leidenfrost effect/intermittant bubble insulation to pulse the coil. Maybe some "hot and cold" fluctuation in resistance of the platinum wire comes into play as well.
Large induction coil with Wehnelt interrupter
http://www.youtube.com/watch?v=m87-paje-ZI
Last edited by Mark on Sat Dec 28, 2013 4:57 pm, edited 1 time in total.
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Mark
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Re: youtube

Post by Mark » Sat Dec 28, 2013 4:47 pm

Wabbler fence charger
http://www.youtube.com/watch?v=BQbFCQiCHMY

Electric fence experiment ends as expected (original) HD
http://www.youtube.com/watch?v=MALu5Gmqy18
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Re: youtube

Post by Mark » Sat Jan 04, 2014 12:10 am

A Stirling Engine built from a cookie tin
http://www.youtube.com/watch?v=ViqQ1YXCpHY
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Mark
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Re: youtube

Post by Mark » Sat Jan 04, 2014 2:36 am

Three-Dimensional Mid-Air Acoustic Manipulation [Acoustic Levitation]
http://www.youtube.com/watch?v=odJxJRAxdFU
Whoa: Watch Scientists Use Sound Waves to Make Things Levitate
http://www.wired.com/design/2014/01/who ... und-waves/
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Mark
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Re: youtube

Post by Mark » Sat Jan 04, 2014 8:00 pm

Sun imaging ISON and EASIEST Schlieren photography Dan's Version SOLAR TELESCOPE
http://www.youtube.com/watch?v=u0aClpzytt8

Jam Jar Pulse Jet Schlieren
http://www.youtube.com/watch?v=q1LQ94pjUWE
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Mark
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Re: youtube

Post by Mark » Sat Jan 04, 2014 8:45 pm

Fast & Scalded: Capillary Leidenfrost Droplets on micro-Ratchets
http://www.youtube.com/watch?v=CS0c05WQ_js
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Mark
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Re: youtube

Post by Mark » Sun Jan 05, 2014 3:24 pm

The colors kind of add to the effect. Nice simple table experiment.
Cymatic Experiments on Harmonics, atomic alignment & sacred geometry
http://www.youtube.com/watch?v=IvKt9dfxHNI#t=4m36s
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Mark
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Re: youtube

Post by Mark » Tue Jan 07, 2014 2:38 am

Not a good place if the jar cracks do you think?
JB2 In Science Now. The Pulse Jet Engine!
http://www.youtube.com/watch?v=3iAKbzjVYps#t=4m
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Mark
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Re: youtube

Post by Mark » Sat Jan 11, 2014 8:53 pm

Steel instead of sand
The Hourglass
http://vimeo.com/22396483
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Mark
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Re: youtube

Post by Mark » Wed Jan 15, 2014 4:05 am

Interesting design
Big sparks from a handheld electrophorus
http://www.youtube.com/watch?v=axgG_aSLKPM
http://www.rmax.com/wall-r-matte-plus3.asp

"One of the largest examples of an electrophorus was built in 1777 by German scientist Georg Christoph Lichtenberg.[7] It was 6 feet (2 m) in diameter, with the metal plate raised and lowered using a pulley system. It could reportedly produce 15 inch (38 cm) sparks."
http://en.wikipedia.org/wiki/Electrophorus
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Mark
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Re: youtube

Post by Mark » Fri Jan 17, 2014 12:14 am

[quote="Mark"]Interesting design
Big sparks from a handheld electrophorus
http://www.youtube.com/watch?v=axgG_aSLKPM
http://www.rmax.com/wall-r-matte-plus3.asp

I was curious about the price of those panels. I wonder how two panels hooked together would work as an 8 foot X 8 foot electrophorus? That would be ~4 times more surface area than the above video and you would need to be very careful and stand a good distance away from it so as not to get shocked/electrocuted or worse perhaps.
http://www.homedepot.com/p/t/100317820? ... =100317820#
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Mark
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Re: youtube

Post by Mark » Mon Feb 03, 2014 3:49 am

Ball Bearing Motor - How to Make/How it Works
http://www.youtube.com/watch?v=DjKhggNJGls

RimstarOrg4 days ago
"Yes, it works on DC as well. Some use batteries directly connected to the motor to run it. The explanation I gave in this video is just the most popular one. I've given a link in the video description to abstracts of papers that provide some other explanations."
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Mark
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Re: youtube

Post by Mark » Tue Feb 04, 2014 2:41 pm

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Mark
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Re: youtube

Post by Mark » Sun Mar 16, 2014 1:28 am

The fourth harmonic and Sibelius
http://iopscience.iop.org/0031-9120/49/2/149
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Mark
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Re: youtube

Post by Mark » Tue Mar 18, 2014 2:56 pm

I liked the smoke test.
How to Move Things with Sound/Acoustic Propulsion
https://www.youtube.com/watch?v=L5fVFA2sWt4
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