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​​When you think about the challenges involved, perhaps using aerial drones to deliver goods to peoples' homes just isn't feasible. That's why several groups are developing ground-based delivery drones. One of the latest, Eliport, envisions a system in which people don't even need to be involved.​

​A couple of years ago, we heard about a device known as the Ripple Maker (now called Coffee Ripples), a machine that reproduces photos, text or other graphics on coffee foam. Well, beer-drinkers may be glad to know that its makers are back, with Beer Ripples.

Depending on where they occur, tropical cyclones are also known as hurricanes or typhoons. No matter what you call them, though, they're caused by the evaporation of warm ocean surface water. Norwegian scientists are now looking at stopping them, by using bubbles to cool that water down.

The world's largest jet engine has taken flight for the first time in the skies over the Mojave Desert in California. On Tuesday, GE Aviation's GE9X powered into the air on the wing of the company's "Flying Test Bed."

Cinch has pitched the fourth generation of its solar-powered pop-up tents, refreshing the existing line with new features like integrated smart LED lighting, and introducing the Cinch Pod, a portable “living room” that can connect several tents together.

​A new Kickstarer project aims to remove trash from the Chicago River by creating a remote-controlled floating garbage collector. Named Trash Robot, the machine can be controlled a web browser, so potentially anyone can take a turn doing their bit to clean up the river from anywhere in the world.

The winner of Nikon’s annual Surf Photo of the Year has been been awarded to Trent Mitchell for his remarkable image entitled Unbound from a collection he has been working on for over five years. The Australian-based photographic competition celebrates the “best of the best” in surf photography.

Among the almost limitless use cases for commercial-scale graphene is filtration. ​MIT engineers say they've now developed a scalable production process for precisely tailored graphene filtration membranes, which could see action in desalination, biological separation and other applications.

​Scientists at the Chinese Academy of Sciences have put together the first global carbon dioxide maps based on data from the Chinese satellite TanSat. The satellite also measures “carbon dioxide flux,” changes in its behavior on Earth and in the Earth's atmosphere.

Ovo Energy has launched a suite of domestic energy products, including a V2G charger that gives EV drivers the flexibility to draw electricity from the grid when it's cheap and sell it back during peak demand hours. And if users get the balance right, they could effectively drive their EVs for free.

For a number of years now, Lenovo-owned Motorola has specialized in mid-range Android smartphones that combine decent specs and design with affordable prices. With the Moto G6, Moto G6 Play, and Moto G6 Plus, unveiled today at a special event in Brazil, that tradition continues.

Another small electric airplane took to the skies recently in the form of Bye Aerospace's Sun Flyer 2, which made its maiden flight on April 10. The two-seater prop-driven aircraft has a 3.5-hour flight duration thanks to its six lithium-ion battery packs and is intended as a pilot trainer.