From: MIT TechTV on Thu, Aug 26 2010 4:47 PM

From: MIT TechTV on Thu, Aug 26 2010 4:47 PM

Energy-efficient salps swim and forage. To find out more, read a news release at . Video courtesy of Roman Stocker of the MIT Department of Civil and Environmental Engineering and Kelly Rakow Sutherland and Larry Madin of Woods Hole Oceanographic Institution

From: MIT TechTV on Thu, Aug 26 2010 4:46 PM

Marine microbes — though invisible to the naked eye — perform functions that are vital for the health of the ocean. With no vision or hearing, they navigate their environment by following chemical signals. One of these chemicals, DMSP, elicits attraction among several marine microorganisms. The ...

From: MIT TechTV on Thu, Aug 26 2010 4:45 PM

The strength of a protein-based materials like spider silk lies in the specific geometric configuration of structural proteins, which have small clusters of weak hydrogen bonds that work cooperatively to resist force and dissipate energy. This video shows the failure of a beta-sheet model system...

From: MIT TechTV on Thu, Aug 26 2010 4:44 PM

From: MIT TechTV on Tue, Aug 24 2010 6:43 PM

Professor Paul Gray Linear Circuit Dynamic Part 2

From: MIT TechTV on Mon, Aug 23 2010 4:04 PM

This is our second test drive of the new Cap Kart. The first run ended similarly to the first test drive: with a dead MOSFET in the controller. This time we came prepared with a field soldering kit and a less volatile replacement FET. After that, things went smoothly and we got a good chance to ...

From: MIT TechTV on Mon, Aug 23 2010 4:04 PM

Two wood boards are connected by a hinge. A small cup is mounted near one end of the upper board with a tee for a ball on the end. The board is lifted to a certain height, and when released the ball ends up in the plastic cup. This shows that the board has moved farther than the ball ...

From: MIT TechTV on Wed, Aug 18 2010 3:14 PM

From: MIT TechTV on Wed, Aug 18 2010 3:14 PM

From: MIT TechTV on Mon, Aug 16 2010 2:55 PM

Okay, so it’s not the fastest or most impressive test drive we've ever had. (The kart suffered a[nother] MOSFET failure after a few runs.) But it highlights one of the new features: a custom-built rear axle differential. With this addition, and savings of about 100lbs by switching to lithiu...

From: MIT TechTV on Mon, Aug 16 2010 2:55 PM

This video demonstrates some upgrades to Twitch, Jr., my linkage-drive robot. It was pretty difficult to drive, so to help I added a yaw rate sensor (gyroscope) and a heading control loop. I also added a mode that automatically selects the wheel positions based on a single joystick input. &#...

From: MIT TechTV on Mon, Aug 09 2010 10:47 PM

From: MIT TechTV on Mon, Aug 09 2010 10:47 PM

This summer’s Edgerton Center Engineering Design class produced four awesome projects in four weeks: - A functional RC quadrotor built with commonly-available RC equipment and an Arduino microcontroller board. - A 4x3x(8x8) LED matrix screen capable, among other things, of playing acce...

From: MIT TechTV on Mon, Aug 09 2010 10:47 PM

From: MIT TechTV on Mon, Aug 09 2010 10:47 PM

From: MIT TechTV on Mon, Aug 09 2010 10:47 PM

From: MIT TechTV on Thu, Aug 05 2010 10:40 PM

With a skilled test pilot at the helm, the stealthy electric propulsion really shines... and it’s not just the power LED either.

From: MIT TechTV on Thu, Aug 05 2010 10:40 PM

Research from Professor Jacopo Buongiorno’s lab showing the occurrence of CHF, the transition from nucleate boiling to film boiling, on an electrically-heated wire submerged in water.

From: MIT TechTV on Thu, Aug 05 2010 10:40 PM

Research from Professor Jacopo Buongiorno’s lab showing the 2D time-dependent temperature distribution on an indium-tin-oxide (ITO) heater, laid over a transparent sapphire substrate. Temperature is measured with high-speed infra-red thermometry.