Search found 155 matches

by shawn
Fri Jan 16, 2009 12:20 pm
Forum: Open Forum
Topic: new wind turbine in Worcester
Replies: 2
Views: 6186

kW and kWh in Holy Name turbine interview by Our Ren. Nation

In the video, when Mary Riordan said her "turbine would produce over a million kilowatts of electricity every year" she must have meant kilowatt-hours; she makes the same mistake in the accounting of the usage. I'm compiling a list of this exact same confusion made over and over in news articles. It...
by shawn
Thu Nov 06, 2008 4:31 pm
Forum: Open Forum
Topic: EnergyTeachers' presence in Second Life
Replies: 12
Views: 24394

Sustainable Energy Science Lab Grand Opening

Join Windy Schor and Solar Sierra for the grand opening of the Sustainable Energy Science Lab, an endeavor of EnergyTeachers.org to study and to demonstrate renewable energy and energy efficiency using dynamic objects and other Second Life (a virtual reality) tools. Come ride an elevator to the top ...
by shawn
Tue Sep 30, 2008 12:15 pm
Forum: Energy Science
Topic: Latest news about hydrogen fuel cells
Replies: 2
Views: 6211

H2 Daily

I checked out Omar's suggestion. The site does aggregate news about hydrogen and fuel cells, including a gem about a DOE grant for energy ed in South Carolina. Turns out the US DOE is giving these SC hydrogen stakeholders money to lobby for hydrogen in the state legislature, though the headline make...
by shawn
Fri Sep 26, 2008 11:13 pm
Forum: Equipment
Topic: Measuring video game consoles' power
Replies: 1
Views: 6741

Energy use of Mac Pros and MacBooks

Read this forum for some numbers and interesting interpretations from computer users on the power (and VA) usage of their desktops and laptops:
http://forums.macrumors.com/showthread.php?t=512923
by shawn
Mon Sep 08, 2008 8:45 pm
Forum: Equipment
Topic: Bicycle Generator
Replies: 2
Views: 7921

power output of fixed bike generators

True, James, that the little generators you put on the frame to run your lights are 1-5W; but, with this 10 kg generator, students have been able to output 75W into three lights or 100W into a battery.
Image
by shawn
Fri Jul 11, 2008 10:43 pm
Forum: About these forums
Topic: Examples of miscommunication in this forum
Replies: 1
Views: 6782

examples of miscommunication in this forum

The first post in this topic is a message from someone who clicked "Click here for comments or inquiries" but didn't leave a full name or any contact info. Visitors shouldn't assume that a web site can somehow figure out their personal information without them ever submitting it. This happens too of...
by shawn
Sun Jun 01, 2008 2:48 pm
Forum: Open Forum
Topic: EnergyTeachers' presence in Second Life
Replies: 12
Views: 24394

Solar tours in Second Life

Solar Sierra will be giving two tours of demostration-sites using solar technologies, mostly photovoltaic, but also solar hot water and solar cooking, in Second Life. Saturday, June 7, 7:30AM SLT (Pacific Standard Time). Wednesday, June 18, 11:30AM SLT (PST). Both tours will leave from Etopia Prime ...
by shawn
Thu May 01, 2008 12:44 pm
Forum: Open Forum
Topic: EnergyTeachers' presence in Second Life
Replies: 12
Views: 24394

Solar cooking workshop in Second Life

Second Life is an online, virtual reality with tens of thousands of users online at any time, from around the world. I've created an "avatar" there, named Solar Sierra, who discusses solar technologies and sells virtual solar cookers. You can learn more about Second Life at their web site: http://se...
by shawn
Fri Apr 25, 2008 3:53 pm
Forum: Open Forum
Topic: EnergyTeachers' presence in Second Life
Replies: 12
Views: 24394

Starting to meet energy educators in Second Life

Our own Windy Schor, a Second Life avatar, met Szavanna Anatra, another avatar, and the discussion led to solar cooking. Szavanna gave us a link to her blog, including items on solar cooking:
http://www.szavanna.co.za/
Check out the blog, see entries on solar cooking.
by shawn
Thu Apr 03, 2008 11:17 am
Forum: Open Forum
Topic: EnergyTeachers' presence in Second Life
Replies: 12
Views: 24394

Sold two solar cookers on Second Life

Later in the same day I posted the first post in this topic, yesterday, I sold two solar cookers for about US 4 cents each. I wonder how much people would be willing to pay for a such simple solar cooker kit in real life. You can start to answer this question at Solar Cookers International: http://s...
by shawn
Wed Apr 02, 2008 12:15 pm
Forum: Open Forum
Topic: EnergyTeachers' presence in Second Life
Replies: 12
Views: 24394

EnergyTeachers' presence in Second Life

For the past two weeks, I have been exploring Second Life (SL), an online world full of tens of thousands of people, some just visiting, some spending most their waking hours there. http://secondlife.com I recently set up a booth there with EnergyTeachers.org labels, selling a box-type solar cooker,...
by shawn
Thu Mar 06, 2008 6:13 pm
Forum: Lesson Plans
Topic: RE projects for technology courses
Replies: 1
Views: 6137

Solar recharged power lawnmower

Appropedia is an excellent site for technological innovations, mostly on the scale of an individual's work: http://www.appropedia.org/ One example is the Solar Charged Lawnmower, a car-battery powered lawnmower. http://www.appropedia.org/Solar_Charged_Lawnmower It seems like such a good idea, since ...
by shawn
Thu Mar 06, 2008 6:06 pm
Forum: Lesson Plans
Topic: RE projects for technology courses
Replies: 1
Views: 6137

RE projects for technology courses

I'd like to start a forum discussing interesting projects in that teach about renewable energy as a technological centerpiece. Please reply if you know about any good projects.
by shawn
Fri Jan 18, 2008 12:42 pm
Forum: Field Trips
Topic: Web (virtual) tours
Replies: 0
Views: 6369

Web (virtual) tours

You can take a nice mouse-click tour of New Hampshire homes at
http://www.nhsea.org/resource/gboh_map.php
includes photos and description of "green" features.
by shawn
Wed Jan 16, 2008 2:00 pm
Forum: Energy Science
Topic: question about electricity
Replies: 4
Views: 9247

Path of least resistance, not shortest path

Charges do not necessarily take the physically shortest path, but are forced to move away from other like charges. Imagine anthropomorphized electrons, as they are forced in 120th of a second to get from your left foot to your right: Electron 1: I'm going to go through the groin. Electron 2: Well, I...