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This one minute video above demonstrates how you can make a Paper Record Player with only a piece of construction paper, a needle and some tape. It is so interesting to see how simple the pressed record technology actual is. Now compare that to CD and DVD technology, you need a ton of tech to make heads or tails of the tiny pits that are burnt into those! Interested in how those vinyl records are made? Watch the two videos below to learn all the steps involved in the process. |
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A quarter gives you 15 minutes in most meters here in Winnipeg. Based on my calculations this meter is good for almost 6 weeks. Only problem here is that no mater how much you plug the meter you are only able to stay in the spot for 2 hours. I would love to see the face of the meter attendant who comes across this meter though! Here is the full details if you are interested (PDF). Via: Make |
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When you are driving down the road in a modern car and a tune comes on that you don’t know you can press the info button to see who sings it and what the name of the song is. This data is courtesy of the Radio Data System. Edin has made a circuit so that you can add this data to your own radio such as the vintage radio 1957 radio in the picture. All that needs to be done now is install the display into the radio and make it look more like it belongs. "This project is actually RDS decoder that is realised using TDA7330B RDS demodulator and ATtiny2313 microcontroller. Received and decoded RDS text is displayed on 2×16 HD44780 based LCD display with many options: displaying RDS time, displaying TA (traffic announcements) flag and scrolling 64 characters long RDS text. When you want to connect RDS decoder (www.mictronics.de) to any FM radio, first you need to locate phase discriminator (actually FM signal detector). On it’s output along with audio signal there is stereo carrier signal as well as MPX on 57 kHz that carries RDS information, so we just need to connect to that point through 470pF capacitor and that’s it. Of course, GND should be connected also."
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The prize this week is a loupe magnifier. This contest will run for one week (Aug 1 – 7, 2009) . Ending time is based on central standard time. To enter, identify the item pictured above and give an example of what can be done with it. Please do not give the answer in the comments. Send an email to contest @ hackedgadgets.com with "Name the Thing Contest" as the subject, and the message body consisting of:
The winner will be chosen at random from all of the correct entries. ———————————–———- Added Aug 10, 2009 The item to guess was the Early Electronic Ignition Distributor The winner is Randy M. (There were 176 entries) ————————————–———- Below is a picture of the prize.
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