Would a Lava Lamp work on Jupiter with its higher gravity? To find out, I built a large centrifuge out of Meccano and spun up a lava lamp. For more information go here. Note the smartphone doing data collection.

Android Phone Grows Up, Becomes Brain for Real Robot, Gadget Lab, Wired

"Playing with apps on an Android phone is fun. Building your own apps, even more so. But what about using the phone to operate a moving, talking bot? Tim Heath and Ryan Hickman have done exactly that. The bot they recently finished building -- Truckbot -- is still relatively simple. It's got an HTC G1 phone for a brain, riding on top of a chassis with some wheels and treads. All it can do is roll around on a tabletop, turn and head off in a specified direction. When I visit the workshop where they're building it, Heath and Hickman show how it can use the phone's compass to make itself point to the south. But the duo have much more ambitious plans in mind. "I knew I could build this thing. I just needed a phone," explains Heath, a Python web engineer. He posted on various e-mail lists looking for one, including that of Hacker Dojo, a Mountain View, California, hackerspace. Hickman, who works for Google's Doubleclick division, but has no connections to the Android people, saw Heath's pleas."

Jing Li, a physical scientist at NASA's Ames Research Center, Moffett Field, Calif., along with other researchers working under the Cell-All program in the Department of Homeland Security's Science and Technology Directorate, developed a proof of concept of new technology that would bring compact, low-cost, low-power, high-speed nanosensor-based chemical sensing capabilities to cell phones.

The device Li developed is about the size of a postage stamp and is designed to be plugged in to an iPhone to collect, process and transmit sensor data. The new device is able to detect and identify low concentrations of airborne ammonia, chlorine gas and methane. The device senses chemicals in the air using a "sample jet" and a multiple-channel silicon-based sensing chip, which consists of 16 nanosensors, and sends detection data to another phone or a computer via telephone communication network or Wi-Fi.

More information and high resolution photos here.

Far From a Lab? Turn a Cellphone Into a Microscope, NY Times

"... an engineer, using software that he developed and about $10 worth of off-the-shelf hardware, has adapted cellphones to substitute for microscopes. "We convert cellphones into devices that diagnose diseases," said Aydogan Ozcan, an assistant professor of electrical engineering and member of the California NanoSystems Institute at the University of California, Los Angeles, who created the devices. He has formed a company, Microskia, to commercialize the technology. The adapted phones may be used for screening in places far from hospitals, technicians or diagnostic laboratories, Dr. Ozcan said."

"Usually I write about ham radio. But looking at communication devices of the future from the past, I thought it would be fun to have a Star Trek: The Original Series Bluetooth communicator for a cellphone. I worked with Dave Clausen to hack one together from a toy Star Trek communicator, a Bluetooth module, and a microcontroller. Following are the directions and program to make your own. And of course a video to show how the Star Trek Bluetooth Communicator works."

More at Make:

In previous work, two platforms have been developed for testing computer-vision algorithms for robotic planetary exploration (McGuire et al. 2004b,2005; Bartolo et al. 2007). The wearable-computer platform has been tested at geological and astrobiological field sites in Spain (Rivas Vaciamadrid and Riba de Santiuste), and the phone-camera has been tested at a geological field site in Malta.

In this work, we (i) apply a Hopfield neural-network algorithm for novelty detection based upon color, (ii) integrate a field-capable digital microscope on the wearable computer platform, (iii) test this novelty detection with the digital microscope at Rivas Vaciamadrid, (iv) develop a Bluetooth communication mode for the phone-camera platform, in order to allow access to a mobile processing computer at the field sites, and (v) test the novelty detection on the Bluetooth-enabled phone-camera connected to a netbook computer at the Mars Desert Research Station in Utah.

News media are invited to see a demonstration of first-generation laboratory prototypes of new technology that would bring chemical sensing capabilities to cell phones on Tuesday, Oct. 27, 2009 at San Diego State University Regional Technology Center, San Diego, Calif.

Jing Li, a physical scientist at NASA's Ames Research Center, Moffett Field, Calif., along with other researchers working under the Cell-All program in the Department of Homeland Security's (DHS) Science and Technology Directorate, will demonstrate their proofs of concept. Li has developed a device, designed to be plugged in to an iPhone, which collects sensor data and sends it to another phone or a computer via telephone communication network or Wi-Fi.