![]() Nidhi Subbaraman: Yes, it certainly seems like there are concerns mounting regarding his publishing record. Zoe Thomas: The physicist behind this paper, Ranga Dias, has he faced any kind of criticism like this before? ![]() But they haven't published these findings yet and it's part of a series of experiments they're continuing to do, but they are the only ones I can tell who have seemed to have confirmed the results that the group announced in March. One of them, they were able to purchase the conductivity and they say in the other sample, they couldn't. Now, one other group tested material that was supplied by Dias and team, and they had two samples. Some samples were showing color change and some samples were showing a change in resistance, but neither group found evidence of superconductivity. The Dias team had described this brilliant color change from blue to pink to red. And they found that they couldn't make it work. Two of them in particular tried to make a combination of lutetium, this rare earth metal, hydrogen, and nitrogen and see if it exhibited superconductivity under the conditions that Dias and his team had done. Nidhi Subbaraman: So, as is typical in science, a couple of labs started trying to synthesize a material in the way that the group had done. Nidhi, what concerns have been raised about this finding? Nidhi Subbaraman is a science reporter for the Wall Street Journal, and she joins me now. But now questions are being raised about his findings. That would mean the potential for lossless and cheaper energy production. A physicist at the University of Rochester, Ranga Dias, claimed to have found a superconductor that could work at room temperature and under normal pressure. But first, back in March we told you about a stunning discovery that could make batteries last longer. Our European tech reporter, Sam Schechner, will explain where things stand for Uber and what lessons other companies and cities can learn about setting green goals. Uber has big plans to lead the transition to electric vehicle use in London, but powering that ambitious goal is proving problematic. I'm Zoe Thomas for the Wall Street Journal. Zoe Thomas: Welcome to Tech News Briefing. This version may not be in its final form and may be updated. This transcript was prepared by a transcription service.
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