| The title of this article should really be `remote-controlled poltergeist-imitator`. By operating a miniature ultrasonic transmitter con...
| The title of this article should really be `remote-controlled poltergeist-imitator`. By operating a miniature ultrasonic transmitter con...
| In recent years the use of biofeedback techniques to achieve conscious control of brain activity has become extremely popular. Of partic...
| Recent medical experiments have lent weight to the idea that magnetic fields are of therapeutic value in the treatment of psychosomatic...
| This final article in the series on the slotless car track discusses the remaining electronic circuits, namely the power supplies for the...
| Last month`s article dealt with the theoretical circuits used in the VCO. This month`s contribution covers the selection of components...
| Power consumption of a recently installed aeronautical radio beacon from Redifon Telecommunications is so low _ that its batteries rely s...
| We hasten to reassure our readers, lest our use of the word `paranormal` should conjure up visions of unspeak- 11ble hags dancing around...
| Kirlian photography has little in common with conventional photograpy. The film is expose, not optically through a lens system, but by placi...
| The second part of this article completes the desc`ription of the circuits of the CCI R standard generator, and gives the layout of the...
| In order to measure small changes in high resistance circuits, the use of a simple ohmmeter is not sufficient, since the measurement ca...