Doug DeHaven
Every want to know how a gas pump nozzle works? how it knows when to shut off?...
Doug DeHaven
Owner and founder of DJD Labs, I have a deep passion and love of science and technology.
Recently added to the collection is an old 1970’s Weather Measure Corp, Solar radiation recorder ( Pyranograph...
Just in to the collection is a 1829 Henry Troemner solution scale Model 80-B Almost 200 years...
Set out to make my very own light show, here is the result of my first ever...
Found this recently on a bike ride in the woods, any idea what it may be? It...
NOTE: I should be using the word diffraction and not interference in this video because it is...
Working on a 2017 jeep renegade, no tail or turn or reverse.. found the ground pin melted!...
A Friend of the lab wanted a custom Knife for his collection, so I setout to design...
I setout to find the cheapest way of storing tons of data, I did not need it...
Worlds first magic marker, predates the sharpie! This marker was designed by Sidney Rosenthal, more on that...
