Hypnotic Coffee Table Creates Sand Art With a Magnetic Marble

Bruce Shapiro
Bruce Shapiro

A living room featuring this kinetic art table has no need for coffee table books—or a television, for that matter. You can happily entertain yourself for hours just watching the steel ball create patterns in the sand.

According to Creators, artist Bruce Shapiro based his design off the myth of Sisyphus, in which a man is forced to push a boulder uphill for eternity. Like Sisyphus’s stone, the marble in this table doesn’t roll towards a final destination. Guided by a magnet beneath the surface, the ball creates intricate grooves in the top layer of sand until the table is unplugged. The table resets with a new path as soon as it completes a pattern.

Metal ball carves intricate patterns into sand art coffee table.
Bruce Shapiro

Metal ball carves intricate patterns into sand art coffee table.
Bruce Shapiro

Last fall, Shapiro took his table to Kickstarter, where he raised over $1,900,000. A commercial website for the product is currently in development. To witness the mesmerizing process, check out the video below.

[h/t Creators]

7 Top-Rated Portable Air Conditioners You Can Buy Right Now

Black + Decker/Amazon
Black + Decker/Amazon

The warmest months of the year are just around the corner (in the Northern Hemisphere, anyway), and things are about to get hot. To make indoor life feel a little more bearable, we’ve rounded up a list of some of the top-rated portable air conditioners you can buy online right now.

1. SereneLife 3-in-1 Portable Air Conditioner; $290

SereneLife air conditioner on Amazon.
SereneLife/Amazon

This device—currently the best-selling portable air conditioner on Amazon—is multifunctional, cooling the air while also working as a dehumidifier. Reviewers on Amazon praised this model for how easy it is to set up, but cautioned that it's not meant for large spaces. According to the manufacturer, it's designed to cool down rooms up to 225 square feet, and the most positive reviews came from people using it in their bedroom.

Buy it: Amazon

2. Black + Decker 14,000 BTU Portable Air Conditioner and Heater; $417

Black + Decker portable air conditioner
Black+Decker/Amazon

Black + Decker estimates that this combination portable air conditioner and heater can accommodate rooms up to 350 square feet, and it even comes with a convenient timer so you never have to worry about forgetting to turn it off before you leave the house. The setup is easy—the attached exhaust hose fits into most standard windows, and everything you need for installation is included. This model sits around four stars on Amazon, and it was also picked by Wirecutter as one of the best values on the market.

Buy it: Amazon

3. Mikikin Portable Air Conditioner Fan; $45

Desk air conditioner on Amazon
Mikikin/Amazon

This miniature portable conditioner, which is Amazon's top-selling new portable air conditioner release, is perfect to put on a desk or end table as you work or watch TV during those sweltering dog days. It's currently at a four-star rating on Amazon, and reviewers recommend filling the water tank with a combination of cool water and ice cubes for the best experience.

Buy it: Amazon

4. Juscool Portable Air Conditioner Fan; $56

Juscool portable air conditioner.
Juscool/Amazon

This tiny air conditioner fan, which touts a 4.6-star rating, is unique because it plugs in with a USB cable, so you can hook it up to a laptop or a wall outlet converter to try out any of its three fan speeds. This won't chill a living room, but it does fit on a nightstand or desk to help cool you down in stuffy rooms or makeshift home offices that weren't designed with summer in mind.

Buy it: Amazon

5. SHINCO 8000 BTU Portable Air Conditioner; $320

Shinco portable air conditioner
SHINCO/Amazon

This four-star-rated portable air conditioner is meant for rooms of up to 200 square feet, so think of it for a home office or bedroom. It has two fan speeds, and the included air filter can be rinsed out quickly underneath a faucet. There's also a remote control that lets you adjust the temperature from across the room. This is another one where you'll need a window nearby, but the installation kit and instructions are all included so you won't have to sweat too much over setting it up.

Buy it: Amazon

6. Honeywell MN Series Portable Air Conditioner and Dehumidifier; $400

Honeywell air conditioner on Walmart.
Honeywell/Walmart

Like the other units on this list, Honeywell's portable air conditioner also acts as a dehumidifier or a standard fan when you just want some air to circulate. You can cool a 350-square-foot room with this four-star model, and there are four wheels at the bottom that make moving it from place to place even easier. This one is available on Amazon, too, but Walmart has the lowest price right now.

Buy it: Walmart

7. LG 14,000 BTU Portable Air Conditioner; $699

LG Portable Air Conditioner.
LG/Home Depot

This one won't come cheap, but it packs the acclaim to back it up. It topped Wirecutter's list of best portable air conditioners and currently has a 4.5-star rating on Home Depot's website, with many of the reviews praising how quiet it is while it's running. It's one of the only models you'll find compatible with Alexa and Google Assistant, and it can cool rooms up to 500 square feet. There's also the built-in timer, so you can program it to go on and off whenever you want.

Buy it: Home Depot

This article contains affiliate links to products selected by our editors. Mental Floss may receive a commission for purchases made through these links.

What Did the Hubble Telescope See on Your Birthday? This NASA Website Will Show You

A 2010 Hubble-captured image of a pillar of gas and dust in a stellar nursery called Carina Nebula.
A 2010 Hubble-captured image of a pillar of gas and dust in a stellar nursery called Carina Nebula.

The Hubble Space Telescope was launched into orbit on April 24, 1990, and it has spent the last three decades enriching our understanding of the cosmos more than we ever could’ve imagined. This year, NASA is celebrating the telescope's 30th birthday with another launch: a website that shows you a photo of what the Hubble saw on your birthday.

Because the telescope is exploring space every hour of every day, the images it has captured over the years are both fascinating and varied. You could see a globular star cluster, a dust storm on Mars, or something else entirely. You only need to enter the date and month of your birthday on the site, so the image you get won’t necessarily be from the year you were born—and, if you were born before 1990, it definitely won’t be—but it’s pretty fun to juxtapose how you were spending that particular birthday with how the Hubble was spending it. While your parents were snapping a shot of you blowing out the candles at your eighth birthday party, for example, the Hubble might’ve been snapping a shot of the beautiful auroras around Jupiter’s north pole.

The telescope was first conceived all the way back in 1946 by Yale University astrophysicist Lyman Spitzer, Jr., who published a paper about the possible advantages of having what he called a “large space telescope” in orbit to help astronomers study the galaxies. The project finally got off the ground in the 1970s, and the telescope was designed so that astronauts could periodically upgrade it while still in orbit. Since it first broke through the atmosphere in 1990, the Hubble—named after astronomer Edwin Hubble, who proved the existence of other galaxies beyond the Milky Way—has taught us that the universe is 14 billion years old, that its expansion is speeding up, and so much more.

Unlock your birthday image on the Hubble website here, and check out more stellar photos taken by the Hubble here.