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Video Blogs
Content posted in February 2008
Continuous Power Generation from Knee Brace
DNTV 
2/14/2008  Post a comment
When in continuous generation energy harvesting mode, the knee-brace generator generates electricity whenever the knee is extended regardless of whether the knee is accelerating or decelerating.
Lab Tests Show Knee Brace Power Generation
DNTV 
2/14/2008  Post a comment
When in the generative braking energy harvesting mode, this knee brace isprogrammed to only engage toward the end of the leg¿s swing phase to produce electricity. Subjects wear masks to measure the metabolic energy expended during the test.
NASA Tests Swimsuit in Low-Speed Wind Tunnel
DNTV 
2/13/2008  Post a comment
NASA Langley has tested more than 60 "tubes" of swimsuit fabric in its low-speed wind tunnel since 2005. Wind tunnel tests produce information about drag that can be directly related to water tests.
The Welland Canal: Driving to St. Catharines
DNTV 
2/11/2008  Post a comment
A day at the Welland Canal starts driving over to the Seaway offices in St. Catharines. A bulk carrier passes under a drawbridge. Then we see gates opening as a ship exits Lock 5.
History Recorded: Welland Canal Taintor Drives, Gate Winch
DNTV 
2/11/2008  Post a comment
Here we see the old Taintor drives and gate winch in action. The racks go up. The counterweight comes down. Gears rotate and the valves open to refill Lock 3 from the reach separating it from Lock 2.
Old Taintor Valve Drives in Action at the Welland Canal
DNTV 
2/11/2008  Post a comment
Here we get close-ups of the old Taintor valve drives, which includes motors, gears, racks and pions and counterweights with the loud rush of leaking valves in the background. It's history recorded!
Welland Canal's Old Winch System in Action
DNTV 
2/11/2008  Post a comment
History recorded! Here we see the old winch system that operates the north gates on Lock 3 as a bulk carrier heads west toward Lake Erie. We see the gates in action using this drive, which has about another 45 days to go after 75 years of use.
Lock 7 Control Room, Power Units at the Welland Canal
DNTV 
2/11/2008  Post a comment
A ship carrying wind turbine blades heads toward Lake Ontario. We take a glimpse at the Lock 7 control room and a below-ground Taintor valve power unit. The video ends at Lock 3, showing a one-of-a-kind Taintor valve and gate mechanism.
Power Units, Taintor Valves at the Welland Canal
DNTV 
2/11/2008  Post a comment
This video shows the power unit in a room on the center pier on Lock 5. Also shown are the Taintor valves through the gate floor.
Welland Canal Gates in Action
DNTV 
2/11/2008  Post a comment
Continuing to shoot from the twinned flight locks' center pier, we see a cylinder in action as it opens a gate. Then a tug pulling a barge pulls into Lock 5 in the westbound lane heading toward Lake Erie.
Ships Entering Locks at the Welland Canal
DNTV 
2/11/2008  Post a comment
A ship enters Lock 4 as we view another ship way up in Lock 7. Seaway Engineer Iqbal Biln explains how the locks work and we see a ship arrestor in action and lock gates closing.
HYmini Generates, Stores Energy for Mobile Devices
DNTV 
2/5/2008  Post a comment
Arthur Huang, talks about the HYmini portable wind and solar power generator and shows off how the device works during the Greener Gadgets conference.
M2E Power Harnesses Kinetic Energy for Mobile Devices
DNTV 
2/5/2008  Post a comment
Reagan Warner-Rowe from M2E Power discusses how the company¿s kinetic batteries work and shows of the battery prototypes after her panel discussion at the Greener Gadgets conference.
Low-Power, Durable XO Laptop is at Greener Gadgets Show
DNTV 
2/5/2008  Post a comment
Mary Lou Jepsen shows off features of the XO laptop from One Laptop Per Child at this year's Greener Gadgets Conference and discusses her new hardware company, Pixel Qi.




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