MEEC Online » Victorville http://www.meeconline.com MEEC Sat, 06 Nov 2010 22:44:23 +0000 http://wordpress.org/?v=2.8.6 en hourly 1 Van de Graaff Generator http://www.meeconline.com/van-de-graaff-generator/ http://www.meeconline.com/van-de-graaff-generator/#comments Wed, 30 Jun 2010 20:51:44 +0000 Christie http://www.meeconline.com/?p=1030 A Van de Graaff generator is a device designed to create static electricity and make it available for experimentation. There are two kinds of generators; one that uses a high-voltage power supply for charging and one that uses belts and rollers for charging. The Van de Graaff generators available through MEEC are made up of:

A motor; two rollers; a belt; two brush assemblies; and an output terminal (usually a metal or aluminum sphere).

When the motor is turned on, the lower roller (charger) begins turning the belt. Since the belt is made of rubber and the lower roller is covered in silicon tape, the lower roller begins to build a negative charge and the belt builds a positive charge. You can understand why this charge imbalance occurs by looking at the triboelectric series: Silicon is more negative than rubber; therefore, the lower roller is capturing electrons from the belt as it passes over the roller.

There is a generator at both the AV Library and the Victorville Library.

]]> http://www.meeconline.com/van-de-graaff-generator/feed/ 0 End Smog http://www.meeconline.com/end-smog/ http://www.meeconline.com/end-smog/#comments Thu, 27 Aug 2009 21:48:57 +0000 guest1 http://www.meeconline.com/end-smog/ From the California Environmental Protection Agency’s Air Resources Board

PSA running time: 1:20

]]> http://www.meeconline.com/end-smog/feed/ 0 Going Places, Making Choices: Transportation and the Environment http://www.meeconline.com/going-places-making-choices-transportation-and-the-environment/ http://www.meeconline.com/going-places-making-choices-transportation-and-the-environment/#comments Thu, 27 Aug 2009 21:25:12 +0000 guest1 http://www.meeconline.com/going-places-making-choices-transportation-and-the-environment/ Curriculum designed for grades 9-12

Seven copies at Antelope Valley and eight copies at Victorville branch.

]]> http://www.meeconline.com/going-places-making-choices-transportation-and-the-environment/feed/ 0 Secrets of Science-Planet Earth http://www.meeconline.com/secrets-of-science-planet-earth/ http://www.meeconline.com/secrets-of-science-planet-earth/#comments Thu, 27 Aug 2009 21:19:30 +0000 guest1 http://www.meeconline.com/secrets-of-science-planet-earth/ 48 mins.

This fascinating video features information on our planet’s unique charactersitics, pollution and global warming, waste, and earthquakes.

]]> http://www.meeconline.com/secrets-of-science-planet-earth/feed/ 0 Methods to Minimize Dust http://www.meeconline.com/methods-to-minimize-dust/ http://www.meeconline.com/methods-to-minimize-dust/#comments Thu, 27 Aug 2009 21:18:21 +0000 guest1 http://www.meeconline.com/methods-to-minimize-dust/ From Mistubishi Cement

13:00 min

]]> http://www.meeconline.com/methods-to-minimize-dust/feed/ 0 The Environmental SWAT Team http://www.meeconline.com/the-environmental-swat-team/ http://www.meeconline.com/the-environmental-swat-team/#comments Thu, 27 Aug 2009 21:17:52 +0000 guest1 http://www.meeconline.com/the-environmental-swat-team/ The New Explorers series

50 mins

]]> http://www.meeconline.com/the-environmental-swat-team/feed/ 0 The Haz-Kid Report http://www.meeconline.com/the-haz-kid-report/ http://www.meeconline.com/the-haz-kid-report/#comments Thu, 27 Aug 2009 21:17:13 +0000 guest1 http://www.meeconline.com/the-haz-kid-report/ San Bernardino County Environmetal Health

]]> http://www.meeconline.com/the-haz-kid-report/feed/ 0 Education and The Environment Initiative Outreach Materials http://www.meeconline.com/education-and-the-environment-initiative-outreach-materials/ http://www.meeconline.com/education-and-the-environment-initiative-outreach-materials/#comments Thu, 27 Aug 2009 21:16:32 +0000 guest1 http://www.meeconline.com/education-and-the-environment-initiative-outreach-materials/ 2006

]]> http://www.meeconline.com/education-and-the-environment-initiative-outreach-materials/feed/ 0 Activities for School and Home For Managing Trash (Spanish) http://www.meeconline.com/activities-for-school-and-home-for-managing-trash-spanish/ http://www.meeconline.com/activities-for-school-and-home-for-managing-trash-spanish/#comments Thu, 27 Aug 2009 21:15:42 +0000 guest1 http://www.meeconline.com/activities-for-school-and-home-for-managing-trash-spanish/ http://www.meeconline.com/activities-for-school-and-home-for-managing-trash-spanish/feed/ 0 Green and Profitable Printing http://www.meeconline.com/green-and-profitable-printing/ http://www.meeconline.com/green-and-profitable-printing/#comments Thu, 27 Aug 2009 21:14:49 +0000 guest1 http://www.meeconline.com/green-and-profitable-printing/ 120 mins

This program provides lithographic printers with an overview of environmental regulations facing printers and how practical waste reduction approaches can simplify compliance and reduce costs.

One copy at Antelope Valley and one copy at Victorville branch.

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