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Credit: Microwave Nano-Electronics Lab, UC Riverside. RIVERSIDE, Calif. -- Materials having excess electrons are typically conductors. However, moiré patterns -- interference patterns that typically arise when one object with a repetitive pattern is placed over another with a similar pattern -- can suppress electrical conductivity, a study led by physicists at the University of California, Riverside, has found. In the lab, the researchers overlaid a single monolayer of tungsten disulfide (WS 2) on a single monolayer of tungsten diselenide (WSe 2) and aligned the two layers against each other...

Congress her runaway toyota lexus didn't have a stuck gas pedal or stuck floormat. it just took off. >> i put the car into all available gears, including neutral, but then i put it in reverse and i placed both feet on the brake, and i was going to have to put the car into the upcoming guardrail in order to prevent killing anyone else. >> this noisy, electronics lab at the university of maryland's clark school of engineering is where professor mark peck specializes in laboratory testing. he believes toyota still doesn't know what's causing the problems. most likely it's electronics. and that, h...

You know, garage door opener and pointed it at the compartment and snapped it. they closed the hood and off they went, no often. >> he points on the national highway transportation safety administration for proof. a test where the for platt is jammed on the accelerator. he does anything he can to stop the car with no results. the conclusion? it's the floor mat. they say it's not the way to test. >> if you're going to investigate whether or not the electronic controls are faulty, you have to do a scientific laboratory test, and they didn't do it. >> reporter: inside the electronics lab at the u...

Explained. >> reporter: he says electronics are the likely culprits, interference with the electronic systems. toyota says it's not true. they say -- inside the electronics lab at the university of maryland's clark school of engineering, professor mike peck specializes in laboratory-controlled interference testing. >> they need to be continuously be testing these products. you just can't test one day and say, ah, there's the problem. unless they can make sure there's no other changes, and that's very difficult today. >> reporter: and that, he says, may be the heart of toyota's problems. profes...