Skip to main content
  1. Home
  2. Emerging Tech
  3. News

Solar-powered trees are planted in Israel to charge phones, cool water, and offer Wi-Fi

Add as a preferred source on Google

All trees convert sunlight into chemical energy, but now there are trees that convert sunlight into power to charge devices, cool water, offer free Wi-Fi and more for the benefit of their surrounding communities. Thanks to an imaginative idea from an Israeli company called Sologic, solar-powered trees are taking root to raise environmental awareness while providing green energy.

The eTree comprises a metal trunk that branches out to support solar panels instead of leaves. The structure, which looks like a pixelated tree in an 8-bit video game, uses the energy captured by the solar panels to provide USB charging outlets for smartphones and tablets, free Wi-Fi, a water trough for pets, a drinking-water fountain for humans, nighttime lighting and informational LCD screens.

Recommended Videos

“We’re used to seeing big companies working on large-scale systems,” says Michael Lasry, founder of Sologic. “Now we see solar energy becoming accessible to each one of us on the street.”

The first eTrees were unveiled Thursday at the HaNadiv Gardens near Zikhron Ya’akov in Israel. Sologic has plans to sell more of these solar-powered trees in China and France.

One Acacia model eTree (the kind planted in Israel) costs about $100,000. A seven-panel version can generate up to 1.4 kilowatts, which is enough to run 35 laptops.

The big price tag means the eTree probably won’t replace traditional rooftop solar panels, but it has a chance at becoming a popular eye-pleasing fixture in parks across the globe, according to Eli Barnea, an investor in Israel’s largest private power company.

Sologic foresees future eTrees utilizing cameras along with touchscreen displays to enable someone standing beneath one solar-powered tree to say hello to someone else standing beneath another eTree planted anywhere in the world.

Jason Hahn
Former Contributor
Jason Hahn is a part-time freelance writer based in New Jersey. He earned his master's degree in journalism at Northwestern…
Rice grain-sized sensor could give robots a delicate touch and keep them from breaking stuff
Sprout Robot

Robots are incredibly precise, but being gentle is not always their strong suit. A machine that can build a car with near-perfect accuracy can still apply too much pressure when working in places where even the smallest mistake matters, like inside a human eye or during delicate surgery. That is why researchers at Shanghai Jiao Tong University are developing a new type of force sensor that could help robots “feel” what they are touching more accurately.

The sensor is tiny, about the size of a grain of rice at just 1.7 millimeters wide, making it small enough to fit inside advanced surgical tools. What makes it especially interesting is that it does not rely on traditional electronics. Instead, it uses light to measure force from every direction, including pressure, sliding movements, and twisting. Here is how it works. At the tip of an optical fiber sits a soft material that slightly changes shape when it comes into contact with something. That tiny deformation alters how light travels through the sensor. The altered light pattern is then sent through optical fibers to a camera, which captures it like an image. Researchers then use a machine learning model to study those light patterns and translate them into precise force readings. In simple terms, the system learns how to “read” touch through light alone, without needing a bunch of wires or multiple separate sensors packed into such a tiny space.

Read more
Meta’s own employees are having a hard time digesting AI. Who would’ve thought?
Artificial Intelligence

If you wanted a snapshot of what it looks like when a tech giant tries to force-feed its workforce an AI future, look no further than Meta right now. The company that built its empire on knowing everything about its users has turned that same appetite inward, and its employees are not happy about it. Last month, Meta quietly informed tens of thousands of its U.S. workers that their corporate laptops would begin tracking their keystrokes, mouse movements, clicks, and screen activity. The purpose was to feed that behavioral data into Meta's AI models so they could learn how people actually use computers. The reaction was immediate — within hours, internal comment threads were flooded with anger, confusion, and more than a hundred emoji reactions that left little to the imagination about how employees felt.

When an engineering manager asked how to opt out, Meta's chief technology officer, Andrew Bosworth, had a blunt answer: there was no opt-out, at least not on a company laptop. This is the same company that is also tying AI tool usage to performance reviews, running mandatory "AI Transformation Weeks" to retrain its workforce, and building internal dashboards that gamify how many AI tokens employees consume in a day — a metric so aggressively tracked that some workers started building AI agents to manage their other AI agents. The whole thing started to resemble a feedback loop eating itself.

Read more
Sci-fi got the gadgets right, but the vibes wrong
Sci-fi got plenty of consumer tech right, but reality keeps delivering the useful, compromised version of the dream
Officer K looking up at a neon-colored hologram in Blade Runner 2049.

I was recently waiting for an Uber when the GPS decided to lie for sport. The car was somewhere nearby, I was somewhere nearby, and somehow both of us were trapped in that modern ritual of wrong pins, slow turns, vague waving, and "I'm here" messages that help absolutely no one.

That was when I had a very reasonable thought: this is exactly where a hologram of a giant arrow pointing at me would be useful.

Read more