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Comment How Things Work Seminar (Score 1) 256

Start off with the instructor doing a few short, hands-on presentation on how some thing works. Simple, well-known household things that one can take apart, observe, and understand. toaster, desklamp, computer mouse, speaker, ...

Then, ask the students to think of one thing they want to talk about. Let them bring the items into the classroom with lab time to take them apart, guided by the instructor, and other students. They can choose junk in their basement or garage, or buy something cheap from a second-hand store. Or even from the local recycling center. Need basic tools, multimeters (inexpensive from Harbor Freight -- good enough for this class), etc Provide some basic instructions on safety and tool usage.

They might even figure out how to fix something.

Then, for the rest of the couse, each student does their presentation. (They also "accidentally" learn some presentation skills.)

The best way to learn is to teach!

Years ago, I participated in a "How Things Work" seminar at MIT just like this. Great stuff!

Comment Mouse issues (Score 1) 823

"For old people, it is difficult to click button on mouse but do not move it." It took me a while to notice this when my mom uses her computer. I had been supporting her remotely using VNC, and couldn't figure out why her windows were resized to be small. When I visited her in person, I saw that she was trying to close a window, but when she click the mouse button, she also move the mouse over to a border, held the mouse down, and ended up reszing the window. Solution: - configure larger window decorations (scroll bars, close buttons.) - configure larger window borders.
Cellphones

Submission + - Smart parking spaces in San Francisco

2centplain writes: The New York Times reports: Can't Find a Parking Spot? Check Smartphone

This fall, San Francisco will test 6,000 of its 24,000 metered parking spaces in the nation's most ambitious trial of a wireless sensor network that will announce which of the spaces are free at any moment. Drivers will be alerted to empty parking places either by displays on street signs, or by looking at maps on screens of their smartphones. They may even be able to pay for parking by cellphone, and add to the parking meter from their phones without returning to the car.

Any guesses on the when this will be hacked?

Like, "reserving" an empty spot by convincing a sensor that a car is actually parked there. Of course, in San Francisco, this will be for naught, since spaces don't stay empty for any longer.

Or, perhaps using the wireless mesh network for some other purpose?

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