When you switch your TV on tonight, think about all those people without electricity. Thinking about this, Trevor Baylis came up with the idea of designing a radio that could be powered by hand. In common with Joshua Silver he wanted his invention to be cheap and easy to use. The radio...
Neywa 402– compact Russian push-pull germanium radio Panasonic R-12– cool speedometer-style Japanese radio Tele-Merc 70– single-ended class A germanium phone amplifier Telefunken 302TS– German-made reel-to-reel tape recorder Toshiba 8TL-463S– push-pull germanium radio with splitter transforme...
The glasses are not beautiful but they are easy to use and cheap to make.The Wind-up Radio When you switch your TV on tonight, think about all those people without electricity.Thinking about this, Trevor Baylis came up with the ide a of designing a radio that could be powered by hand....
say English from your own language if you learn English through your language only and you learn the meaning of that word with your language rather than that language yeah maybe okay you might learn something but it won't be very deep and you won't be able to really really get a feeling...
We’ve pioneered long-range radio, alarm communications and the world’s best- selling glassbreak detectors. safety Fire and Safety We integrate safety systems within your building, so you always know what’s happening, and can be more confident it’s protected from cybersecurity risks. healthy...
The windup radio When you switch your TV on tonight,think about all those people without electricity.Thinking about this,Trevor Baylis came up with the idea of designing a radio that could be powered by hand.In common with Joshua Silver he wanted his invention to be cheap and easy to ...
Making your own mobile phone sounds like a daunting task, but it's actually really fun! We're not talking about a fancy iPhone here, but it is still quite an excellent learning experience.
Usingsyringes(注射器) you change the liquid between the lenses until you can see clearly.2.The wind-up radioWhen you switch your TV on tonight, think about all those people without electricity.Thinking about this, Trevor Baylis came up with the ide a of designing a radio that could be...
Over on the SWLing Post Blog Thomas hasuploaded an excellent tutorial showing how you can build your own YouLoop(aka a Noise-Cancelling Passive Loop). If you've been following our previous posts you'll know that we recently started selling the "YouLoop" which is designed and produced by Yous...
The Wind-up Radio When you switch your TV on tonight, think about all those people without electricity. Thinking about this, Trevor Baylis came up with the idea of designing a radio that could be powered by hand. In common with Joshua Silver he wanted his invention to be cheap and easy ...