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uBeam is one of tech's most intriguing startups, promising to someday charge your wireless devices through the air (or, to be more technical, ultrasonic waves). It's also controversial, with some having publicly suggested that uBeam's technology defies the laws of physics.

So there was a lot of anticipation yesterday when company founder and CEO Meredith Perry appeared at the Upfront Summit in Los Angeles, for the first-ever demo of uBeam's technology.

The demo: Perry first stood a couple of yards from a large white box emitting ultrasound waves, and used a device that glowed red when it was in the waves' path. She then grabbed an Android smartphone in a large and bulky black case, and held it up in that path. When she did so, a large battery charge counter on the screen showed that it was indeed charging.

The product: Perry says that the ultimate phone case will be much sleeker than what she showed, while a mock-up of the transmitter kind of looks like a very small satellite dish designed by Apple or Nest. There was no timeline for commercialization.

There are videos of the demo floating around Twitter for those interested (it was supposed to be off the record, but social media ultimately made that untenable). Axios was unable to visit uBeam's Santa Monica headquarters following the conference due to the company's schedule.

Next: While it appears the basic science of uBeam's plan does check out, there still remain questions. For one, the company has yet to squeeze its technology into the beautiful disc-shaped device that it plans to sell consumers. Nor the quasi-ceiling panels it would sell to commercial customers like coffee shops. Perry said that the company has recently shrunken its tech into coin-sized chips, a first step in the process.

We also don't know the ultimate distance at which consumers would be able to charge devices, the strength of charge or if there are limitations on type of device (we're told Perry picked that particular Android for the demo because of its highly-visible charging icon).

In short: This is a science project that is clearly progressing, but not nearly finished yet.

Go deeper

Updated 1 hour ago - Politics & Policy

U.S. faces urgent anti-hacker crisis

Illustration: Allie Carl/Axios

The Biden administration is accelerating efforts to fill nearly 600,000 vacant cybersecurity positions in the public and private sectors bogging down efforts to protect digital infrastructure.

Why it matters: Following a deluge of ransomware attacks targeting critical government and corporate infrastructure this year, clogs in the talent pipeline are leaving federal, cash-strapped local governments and Big Business even more susceptible to hacking.

Mike Allen, author of AM
6 hours ago - World

Courage vs. coddling with China

Peng Shuai of China serves during the China Open in Beijing in 2017. Photo: Andy Wong/AP

The women's professional tennis tour suspended tournaments in China Wednesday out of concern for Peng Shuai, on the same day that a top business voice made excuses for Beijing.

Why it matters: Ahead of February's Winter Olympics in Beijing, some sports figures are taking on the regime — while Big Business shrinks from confrontation with the world's second-largest economy.

6 hours ago - Sports

What to know about the first MLB lockout since 1995

Illustration: Shoshana Gordon/Axios

Hope you enjoyed the recent flurry of free-agent activity, because it's likely the last non-lockout-related MLB news for a while.

Driving the news: The owners locked out the players after the collective bargaining agreement expired at midnight last night, leading to MLB's ninth work stoppage — and first since 1995.