Science Projects

We have a massive update on Cats of Engineering, we’re caught up and have added the latest rounds of cats. If you’d like to add your cat just scroll down to the bottom and send a photo (link) in! Pictured above: Missy guards her Arduino fireflies prototype.

Bacterial self portraits by Erno-Erik Raitanen via Gizmodo. I have gathered the bacteria samples from my own body. The bacteria consumed the film surface producing photographic images that are entirely created by a chance. I have been removed from the process but, at the same time, the images are a product of my body; self-portraits.

Art of Science 2013 Gallery via io9.

Previously we released one installation guide for 4WD serials smart cars, which invoked intense feedback among users and hobbyists who really like this serial of smart cars. Because we have put 2WD cars into shops, many friends reply to us that they have no clear ideas on how to install...

In celebration of New York’s Bike to Work Day, the team at Voltaic Systems mounted a 60 watt solar panel on the back of an old-school road bike and road the streets of the city, distributing a free charge-up. It’s good for everything from phones, tablets to laptops, as pictured. Via voltaicsystems.

Dave takes you through designing a signal overload detector circuit from scratch and then builds it up on the breadboard. Window comparators Schmitt inverters, Capacitor charging, Pulse stretching, Common mode input range, Tongue angle tweaking, .. it’s all here. EEVblog #471 – Overload Detector Circuit Design - [Link]

300+ old RadioShack manuals.

Steve Taranovich writes: Touchstone, with its first analog power management product, has enhanced such a function with the capability to use supply voltages down to 0.6V while still being able to deliver a 75 mA output current. The device can be used in power harvesting or peak load buffering applications, the LDO may post-regulate voltage buffered in a large capacitor or super-capacitor at boost’s output. Finally, the LDO may be operated simply as an on/off load switch. TS3300 switching regulator coupled with an LDO in same package - [Link]

A Minimal Punched Tape Reader The rig is composed of a Teensy++ 2.0, eighteen red LEDs, eighteen resistors, and a few bits of laser-cut plastic. LEDs are used to both illuminate the paper and sense the holes. The sensor design is based on the classic Arduino LED sensing code. It’s not very reliable, but it’s a fun afternoon proof-of-concept.

Inspire on the pantheon dome in Rome, the installation resemblance a cathedral of light, an art piece where the visitor is immersed in a 360º unique experience completely surrounded with light. The dome works as immersive environment when inside and as large scale sculpture when view from outside. The dome is made out of nearly 1000 spheres and LEDs that are used as a pixel, creating a volumetric environment with infinite patterns and possibilities. The Dome was presented at Coachella Music and Art Festival 2013 in Indio, California.