Month: May 2025

Find my… bicycle?

Knog’s Scout gives bikes a motion-sensitive alarm and Bluetooth tracking.

We've reviewed some pretty expensive bikes here at Ars, and one of the consistent concerns we see in the comments is the fear of theft. That's a widely shared fear, based on a whole bunch of videos that describe how to hide an AirTag tracker where a potential bike thief won't notice it. There are also a number of products available that will hold a hidden AirTag in a reflector, a bike bell, or the head tube.

But Apple has also made it possible for third parties to plug their devices into its "Find My" system, and a company called Knog has made a Bluetooth bike tracker called the Scout that does just that. The Scout goes well beyond tracking, though, providing a motion-sensitive alarm system that will alert you if anybody tries to move your bike.

Meet the Scout

The Scout can be attached to the frame using the screw holes normally used for a water bottle holder. Security screws make it considerably more difficult to remove. Once there, it uses Apple's Find My network to keep the owner apprised of the bike's location (Android users need not apply at the moment). If you're leaving your bike in a high-risk location, you can also use Knog's phone application to set an alarm that will be triggered if the bike is moved.

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Musk’s politics see Tesla sales collapse in Europe

Last month, Tesla sold just 512 cars in the UK and 885 cars in Germany.

Tesla is in deep trouble in Europe. The electric vehicle maker, which once dominated EV sales in the region, is facing sales declines of more than 50 percent in France, the Netherlands, Sweden, Denmark, and the UK. Sales in Germany weren't quite as bad—they fell by 46 percent in April, with slightly smaller decreases in Portugal and Spain. Only Italy and Norway saw any kind of sales growth.

The headwinds were already looking unfavorable for Tesla even before CEO Elon Musk threw his lot in with Donald Trump and his authoritarian makeover of the US government. A small and outdated product portfolio was already looking stale compared to the influx of EVs from Chinese brands and European automakers, but Musk's hard-right turn and the US government's ongoing antagonism toward the rest of the world has soured the brand entirely. And a recent styling refresh for the Model Y has failed to arrest the slide.

The UK has been one of Tesla's biggest markets in Europe, and it's seeing something of an EV boom, with 8.1 percent more BEVs registered in April 2025 than the year before, even as overall car sales have dropped by 10.4 percent year on year. But Tesla's sales fell by 62 percent—the automaker registered just 512 cars all month. For context, 120,331 new cars were registered in the UK last month, of which 24,558 were BEVs.

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Data centers say Trump’s crackdown on renewables bad for business, AI

Without renewables, it’s nearly impossible to meet growing power demand from AI.

The US data center industry has warned that the Trump administration’s crackdown on renewable energy could slow its growth and undermine Washington’s goal to win the global artificial intelligence race.

Renewables have become a flashpoint since Donald Trump re-entered the White House, with his administration suspending clean energy developments on federal land, pausing federal loans, and last month canceling high-profile projects such as Equinor’s $5 billion Empire Wind site.

For tech companies struggling to secure reliable energy supplies to power and train AI, a clampdown on renewables could create power bottlenecks, drive up costs, and push operators towards dirtier energy, experts said.

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