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categories New Products Electrostatics Solar Energy Electricity Magnetism Measurement Power Supplies Hydrogen Fuel Cells Mechanics Discharge Tubes Capacitors Heat Lab Supplies Specific Gravity Temperature Wave Demo Sound Advanced Physics Distillation Light Miscellaneous Electrolysis X-Rays Science Kits Clearance   User Login Returning Customer Secure Login   Order Status Track An Order         WIMSHURST MACHINE This amazing device produces 2 - 3" static electric sparks for a wonderful demonstration. This best-selling item is sure to please, don't miss it! $39.95! Find out more! VAN DE GRAAFF GENERATOR This new for 2009 Van De Graaff generator produces 325KV and features a more powerful 3,500 R.P.M motor. Great for the physics lab, it includes an output terminal on the dome! $259.95! Find out more! STIRLING ENGINE This brand new low temperature differential stirling engine features high quality construction, carrying case and 2 re-usable hot/cold packs! $199.95! Find out more! MALTESE CROSS TUBE This CRT demonstrates cathode rays travel in straight lines and can be blocked by metallic objects. $99.95! Find out more! INDUCTION COIL Creates high voltage from a low voltage dc power source like a battery. Power Geissler tubes, spectrum tubes or Crookes tubes with this amazing coil! $59.95! Find out more! CROOKES PADDLEWHEEL CRT This crookes paddlewheel tube is a beautiful, fully functional reproduction. $109.95! Find out more! GALILEO THERMOMETER This 13 Inch Galileo Thermometer is a wonderful addition to any classroom. $9.99! Find out more! TRIPLE BEAM BALANCE Quality aluminum and stainless steel construction with lifetime warranty. $69.95! Find out more!   Home | Contact us | Privacy policy | Legal | Cart | Bookmark Website Copyright © 2009-2010 Lethan Corporation, All Rights Reserved.