PVC Sprinkler = Summertime Fun
Make a summertime sprinkler system for the kids out of PVC
water
Explosive drop of glass
Awesome science, beautiful imagery – If you want a scientific display of the dangers of pent-up stress, Prince Rupert’s drops are it. After the trauma of being dropped molten-hot into a bucket of cold water, these glass balls, named for a 17th-century amateur scientist, turn into bundles of high tension. They’re impervious to even the […]
Homemade air conditioner version 4
Franco sent in this article detailing his new method for affordable cooling – The construction was fairly simple. It only took me a few hours. I used a 20 litre plastic container to house the heat exchanger and also hold the cooling medium which is ice-water in this case. I made the heat exchanger roughly […]
Growduino in development
From the MAKE Flickr photo pool Boss Sauce is working on an automated gardening system using Arduino – First mockup of Arduino-controlled garden, here switching a relay attached to a submersible pump to automatically water two plants. The “growduino” smart garden project will, um, grow to include more sensors and controls, but watering on a […]
