A little over a year ago we’d written about a sub $100 muon detector that MIT doctoral candidate ... However, they do assume you can either find a cheap photomultiplier somewhere or buy it ...

Which is why smoke detectors are so important ... is that it was hooked up for the cheap. No need to buy a brand-new, expensive Nest protect, when all it takes it a sensor or two and a Raspberry ...

The global portable metal detectors market is poised for significant expansion, with a projected valuation surpassing USD 2,667 million by the year 2032. Reflecting a robust Compound Annual Growth ...