 Cornell ECE 5030 students Uma Mohan, Sarvesh Sukhatme and Priyanka Venkatesh have designed a Portable Device for Measuring Hydration and Body Fat. The project passes a small current through the body to measure the amount of hydration in the person. A 940 nm LED is used to detect the amount of fat the person has by shining it through a part of the body, the amount of light
 The prize this week is an SD Card Reader. This contest will run for one week (July 26 – August 1, 2014). Ending time is based on central standard time. To enter, identify the item above and what it can be used for. Please note the image above is a side view of the thing. Please do not give the answer in the comments. Send an email to
We use OSB (oriented strand board) for many building projects these days as plywood is getting more expensive. The process of how it is made is quite interesting. “Oriented strand board is manufactured in wide mats from cross-oriented layers of thin, rectangular wooden strips compressed and bonded together with wax and synthetic resin adhesives (95% wood, 5% wax and resin). The layers are created by shredding the wood into
 This Arduino Go-Kart was built by gizzmotronics who is a 15 year old inventor from California. Lots of LED lights on this thing is sure to make it light up great at night. It needs a push start to get it going but once it is rolling the thumb throttle will get it up to speed. “The drive setup uses a Hobbywing Xerun 150A brushless electronic speed
 When you are making a new PCB design don’t you wish you could just print out the design instead of sending your Gerbers out for manufacture? BotFactory has created a PCB Printer called Squink, it prints using conductive ink and places dots of conductive adhesive where each SMD part will be placed. Best of all the machine then does a pick and place of all the parts onto
If you are looking to get into the spy game have a look at your first gadget you need here, it is a Mini FM Transmitter. “It transmits FM waves so you could easily receive the signals on your mobile phone, radios, etc. As the name and the picture indicates it is very small and is approximately the size of a 9v battery clip. With this FM transmitter you
  13 year old Richard Turere lives in Kenya. Livestock is very important in their community, however lion are very smart and often kill their animals. The lions wait till everyone goes to bed before attacking. The first attempt at outsmarting the lions was to build scarecrows but the lions soon realized that since they were not moving around that there were not real people and didn’t pose and danger.
