UC Santa Cruz Tesla Coil Show at Aptos High School
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1 U Tesla Coil Show at Aptos High School
2 Santa Cruz Institute for Particle Physics SCIPP Prof. Terry Schalk Dr. Felix Rosenbaum Dr. Hiroshi Ohyama Dr. Alex Grillo Your Guests today U Department of Physics Charlie Crummer,, Laboratory Manager Ruth Schmitz, Graduate Student Arend Van der Zande,, Brian Keeney, Juniors Kevin Waggoner, Sophomore
3 Tesla Program Introduction & Jacob's Ladder Safety First Corona: Zorro s Sword Lights without Cords How the Tesla Coil Works Knight in Armor Bolt to the face Sparks from the feet Chicken Coop? Who was Nikola Tesla? Mystery Knight in Armor Fighting Lightning
4 What does a Physicist do? She/he asks Questions about Nature. Today is your chance to be a Physicist: Ask Questions during the Show!
5 Teach students, learn about nature (Research) Big objects in the sky: Stars, Black holes, Supernovae Smallest objects (Particles): Quarks How do objects form and stay together?
6 The size of the object and its distance tells me what kind of instrument I need to see it. Galaxy Larger & Farther away DNA Smaller & Harder to see Cell Atom Nucleus From Biggest To Smallest... Electron microscope Accelerator
7 Professors and Students (and Teachers!) conduct research in the SCIPP Laboratories. scipp.ucsc.edu
8 Summer 2001: Teachers help launch a big Science Balloon Mr. Kliewer Prof. Schalk Dr. Dann Mr. Manildi Mr. Briber
9 Balloon Flight, Chase and Recovery After 250 Miles across Texas at 130,000 ft, 50g crash, still works
10 COSMOS: UCSC Summer Program for H.S. students just like you!
11 SAFETY FIRST! Distance at least 20 ft. Computers, Gameboys,, CD players, telephones to the back of the room unplugged, switched off! Hearing aids off, pacemakers out of room! Normally you can't see, hear or smell electricity, but the Tesla Coil makes Bright sparks Loud crackling noise The air smell strange (Ozone) 1 Million Volts! DANGER BRACE YOURSELF!
12 Zorro Drawing lightning with a sword
13 Sparks Electricity to grounded sword What is happening with Zorro? Wire to safe ground Moves What about Through the those lights Air without cords? (you knew that, because you use a radio and TV)
14 How does the Tesla Coil work? Ask us about details! 1 million volt Resonance circuit Voltage starts at 120 ends up at 1 million! 14,000 volt Transformer 120 volt Outlet
15 Learn about Transformers Power comes out at Volts Power goes in at 120 Volts Where have you seen this before? Commercial Transformer, hooked up the wrong way
16 Physics Principle: Transformer We hear a lot about conserving Power (turn off lamps, air conditioners, close refrigerator doors...) Electrical Power is just converted wind, water, thermal power It is brought to your neighborhood on high voltage lines Power goes in at Volts Power comes out At 120 Volts and a transformer brings it down to 120V
17 GLAST Transformation of Power Power is used everywhere Visit the Stanford Linear Accelerator Center (SLAC): Electricity -> > New particles Quarks Power is tranformed in Space Black holes explode : Material -> > Light, x-rays, x jets SCIPP works on GLAST Mission: discover the most powerful power plants in the universe SLAC
18 Learn about Resonance That s how a swing works: A kick at the right moment builds up and gets you sky-high! In the Tesla swing, the kick is supplied by the AC electrical current moving back and forth
19 Meet the Fighting Knight Fighting Lightning Bolt to the Head Sparks from the feet
20 Electricity in Air Lightning Jacob s Ladder Corona Tesla Sparks are all related. Principle: Air is made of very small bodies called molecules. When they are broken apart, they become charged and can conduct a current like an electrical wire. If there is a large current, it heats up the air and makes light (like in your toaster!).
21 How lightning works Ground is safe!
22 The Faraday Cage Planes are close to the clouds and away from safe ground. Why aren t they in grave danger from lightning? Answer: They form a Faraday Cage -- that is, they are surrounded by metal. Electricity flows around the outside of the metal, and anything inside is safe! Safest place during a lightning storm is in a plane or car because it is a Faraday Cage
23 The Chicken Coop The World s s Ugliest Faraday Cage -- and it s s full of holes! But can it keep the lightning out? Does the chicken trust the equations?
24 Thomas DC Edison and his Batteries vs. Tesla Revival 271 web sites are dedicated to Nikola Tesla Join the Tesla Coil Web Ring Nikola AC Tesla and his Generators
25 Nikola Tesla as a Daredevil waiting for a hair cut? Double Exposure makes it safe!
26 Mystery Knight Who is afraid of Lightning? Not the Mystery Knight!
27 Is the Mystery Knight OK? The armored suit is safe! It's a Faraday Cage no electric field allowed inside. 1 Million Volts Visible sparks Visible sparks Ground Let s check! Invisible current Electrical current flows on the OUTSIDE of a metal!
28 Fysiks is Phun! Questions? Ask after the show, , e visit You find our coordinates on the web scipp.ucsc.edu
29 Say Good bye to Daniel Greenhouse, the brain behind the sparks He was an undergraduate at U. Thanks to our hosts: All you students Mr. Thompson scipp.ucsc.edu
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