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STEM activity: How to Build a Burglar Alarm

STEM projects & activities includes:How to Build a Simple Burglar AlarmThis & 34;burglar alarm& 34; is a simple project that can be used for STEM and provide an afternoon of fun building it, and then many more hours catching the family out.Place the detector pad under a mat where you want to catch someone, and simply wait for them to come along and stand on the mat and they will be & 34;caught.
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Semikron

Supplier DirectoryFor everything from distribution to test equipment, components and more, our directory covers it.▶︎ Check our Supplier Directory
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R-Type Valve

History of the Valve / Tube Includes:History overviewEarly discoveriesFleming& 39;s oscillation valvede Forest& 39;s AudionDevelopment of the basic ideaR-type valve6L6 valveThe R-type valve was one of the early success stories of the thermionic valve or vacuum tube business. It was designed and primarily manufactured in the UK, although some were manufactured outside the UK.
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China, Others Ground Boeing 737 MAX 8 After Latest Crash

As the investigation of the crash of Ethiopian Airways flight 302 continues, China and other nations have started to ground their fleets of Boeing 737 MAX 8s as a safety precaution.Airlines Taking PrecautionsSeveral airlines have grounded their fleets of Boeing 737 MAX 8 aircraft as the investigation of Ethiopian Airlines flight 302 out of Addis Ababa continues and the world mourns the 157 people who perished on board.
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Valve Leak Caused SpaceX's Dragon Crew Capsule Explosion

SpaceX determines the cause of the Dragon crew capsule explosion.By Rebecca WarrenJuly 16, 2019SpaceX Dragon (June 2019) NASAWith the next SpaceX launch for NASA scheduled for this Sunday, the cause of April’s Dragon crew capsule explosion has been confirmed. A VP from the beleaguered space technology company, Hans Koenigsmann, revealed that the explosion was the result of a leaky check valve.
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