Bicycle battery charger

Joseph Holloway: Engineering better healthcare—that's the focus of the University of Arkansas' new biomedical engineering program. Students from the program's first graduating...
Hi! My name is Mike Lin. And I'm Brian Warshawsky. And we run Fenix International, a San Francisco-based startup, where we make renewable energy products for emerging markets. Our first...
Replay those old school retro videos games and cut the cord to build your own wireless SNES controller powered the EZ-Key Bluefruit, Adafruits bluetooth module. First, we'll start by taking...
this is on one phase it gets harder to turn when you add a load to it ok, so I have one 110 volt AC 60 watt lighbulb and this one is a night light probably just a few watts i don't want to...
Hi In this video I'll show you my electric bike assembling. Present the parts I had to buy to build it. the tools. The details that you need to be careful with and this will be followed by a...
Hi, this is John for Expert Village. Here is a scenario when you are out cutting your lawn with your riding lawnmower. All of a sudden it dies on you, it could be two things possibly: one you may have...

1

annotations

In this tutorial, I'm going to cover silicon diodes, bridge rectifiers, and how you convert AC to DC. Here's the schematic symbol of a diode and a picture of the real thing. The little...
I have another tutorial this one is probably going to be pretty in depth so try to follow along What I have here is uh, I don't know what to call it. A thing that goes on the back of the bike...
Hi, I'm Katie with Pinnacle Promotions and this is the Full Color Microfiber Phone and Camera Bag. Sometimes storing you phone or camera in your purse or backpack can cause dings (ding) or...