ISS Ed-Out: EOH. EOH: Next Week 3/13 & 3/14 Friday: 9am- 4pm Saturday: 9am-3 pm Setup: 8:30 am both days Most of our exhibits in Talbot 103/4 1 hour time.

ISS Ed-Out: EOH

EOH: Next Week

• 3/13 & 3/14• Friday: 9am- 4pm• Saturday: 9am-3 pm• Setup: 8:30 am both days• Most of our exhibits in Talbot 103/4• 1 hour time slots for each exhibit

Exhibit Overvi

ew

Exhibits

• Space Shuttle Tile• Liquid • Orbital Simulatot• Tech Projects• Hybrid Rocket Engine

Space Shuttle Tile

• Actual heat resistant tile from a Space Shuttle

• Black Coating: Ceramic

• White Foam: Silicon, 90% air

• Temperature on re-entry: 3000°F

• Wiki Page: Space Shuttle thermal protection system

Space Shuttle Tile

• Safety glasses and thermal gloves (provided) must be worn by exhibitor handling tile, know where fire extinguisher is at all times

• Two people-one holds tile, one fires blow torch, stop when tile is glowing brighter in very center

• Audience participation: have kid in first or second row use infrared thermometer to measure temp of tile front and back before and after heating

Liquid Nitrogen

• Temperature: -330°F• Space applications: Compress liquid fuels• Wiki page: LN2• Demos:1 Balloon - demonstrates cold compression2 Smash flower and penny - cold makes solids

brittle, freezes water in flower3 Marshmallows - just fun

Liquid Nitrogen

• Any exhibitor placing or removing stuff from the liq N2 must wear gloves and safety glasses

• First few rows of guests must be seated while any smashing is happening

• No one but the exhibitors are allowed to put/remove stuff from liq N2

• Exhibitor will take out marshmallow and drop it into guests hands with tongs provided

Orbital Simulator

• Demonstrate physics of orbits (F~1/r^2)• Marble goes too slow-falls in• Marble goes too fast- escape velocity• Discuss General Relativity (if age

appropriate)

Orbital Simulator

• General Relativity:• Space-time warping by

gravity• Gravitational lensing

(red shift)• Black holes, space-

time singularity• Wiki Page:

Introduction to general relativity

Wrap Up

Wrap Up

• I will be around all day both days• Email, text or call me with any questions/problems• T-shirts will be picked up next Thursday and

available from me all Friday and Saturday• $5 cash please• If you have not already, please complete the online

safety training! http://eoh.ec.illinois.edu/exhibits/• Sign ups live right now

• If you

Thank You!!