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Possibly the Only Accessible Border Demarcation Pillar Placed under the Franco-British Boundary Agreement of 1920

  My brother in-law, an Ob/Gyn physician and retired high-ranking Israeli Army officer is also a history scholar. He recently took us offroading in the Gallil to a rather unknown site that he found through his research on the Franco-British Boundary Agreement of 1920.  This agreement established the boundary between the Mandate of Palestine attributed to

 
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Pilgrimage to the Holy Dish

This summer we fulfilled a life-long dream (at least for some of us) and visited the Arecibo Observatory in Puerto Rico. This is the largest single-dish radiotelescope in the world.  The reflector is 305 m (1,000 ft) in diameter – a tad bit larger than our home-brewed radiotelescope.  The Arecibo system is a semi-transit telescope

 
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Recent Articles About Us

Our DIY work on Quantum Physics was featured this month in MAKE Magazine and the Philadelphia Exponent!  

 
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Great Time at US Science & Engineering Festival in Washington DC

We had a fantastic time this weekend at the US Science and Engineering Festival in Washington DC.  Among the highlights of our visit, we sat insanely close to the stage for the Q&A with Mythbusters Jamie Hyneman and Adam Savage.  We also had the pleasure to meet fellow diy Science authors Theo Gray (Mad Science, The Elements,

 
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Posted to www.diyPhysics.com:d.i.y. 250 kV High Voltage DC Power Supply with Neat Trick for Switching Polarity

I just posted at www.diyPhysics.com detailed instructions on the construction of a 250 kV DC high-voltage power supply.  Although my hack for switching the polarity (referenced to ground) is simple, I am very surprised that I’ve never seen it elsewhere! The hack consists of adding one more capacitor to the Cockroft-Walton multiplier so that it can

 
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Superbowl Sunday at the Prutchi Residence

From Saturday Morning B

 
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We Received The First Copies of Our d.i.y. Quantum Physics Book!

Today we received the first two copies of our new book! It is a do-it-yourself book on Experimental Quantum Physics, and was published by John Wiley & Sons. From the back cover: “Build an intuitive understanding of the principles behind quantum mechanics through practical construction and replication of original experiments. With easy-to-acquire, low-cost materials and

 
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Compton Scattering Experiment

Spectrum Techniques of Oak Ridge, TN – a top supplier of Exempt Quantity radioisotope sources and nuclear measurement instrumentation – released today our tutorial: “Experiment Note: Exploring Compton Scattering Using the Spectrum Techniques Universal Computer Spectrometer”

 
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Pictorial Instructions for Modifying ENI CD V700 into David Prutchi’s CDV700 Pro Geiger Counter

We modified a surplus Civil Defense V-700 radiation survey meter made by Electro Neutronics Inc. (Model 6-b) into a very capable radiation counter capable of working with both Geiger-Müller and PMT scintillation probes. We modified the front panel to accommodate the new switches, connectors, and panel light. In addition, we placed a Veeder-Root count totalizer

 
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