The Fun Optical Illusion You Can Make With Your iPhone X

Peder Norrby, YouTube
Peder Norrby, YouTube

You can use the iPhone X’s powerful depth sensor for more than just face recognition. The technology also allows you to create wild optical illusions on your phone. The phone’s 3D camera allowed Swedish artist Peder Norrby to create a depth illusion that makes an image on the phone look 3D, as Co.Design reports.

The app Norrby created with ARKit face tracking, TheParallaxView, uses a technique called trompe l’oeil, a style you might have seen before in the form of pavement art. It uses hyperrealistic art to give the illusion that a 2D image is really 3D.

The eye tracking makes the image move as the camera does, making it look like you’re manipulating a 3D object, either one that recesses deep into the phone or pops out from the screen. As Mark Wilson explains on Co.Design, this face tracking “allows the screen to create not just one static 3D illusion, but dozens a second, tricking your mind into believing that there’s a whole other world behind the screen of your phone.”

It’s a monoscopic effect, according to Norrby, so the illusion works particularly well in video form, but in person, you’ll need to close one eye to make it work to the same degree.

You can see how it works in the video below. Norrby has submitted the app to Apple’s App Store, but it’s still pending approval. He’s also planning on submitting the source code for developers, which means that anyone could incorporate it into their apps—which we imagine could lead to some pretty amazing video games.

[h/t Co.Design]

Wayfair’s Fourth of July Clearance Sale Takes Up to 60 Percent Off Grills and Outdoor Furniture

Wayfair/Weber
Wayfair/Weber

This Fourth of July, Wayfair is making sure you can turn your backyard into an oasis while keeping your bank account intact with a clearance sale that features savings of up to 60 percent on essentials like chairs, hammocks, games, and grills. Take a look at some of the highlights below.

Outdoor Furniture

Brisbane bench from Wayfair
Brisbane/Wayfair

- Jericho 9-Foot Market Umbrella $92 (Save 15 percent)
- Woodstock Patio Chairs (Set of Two) $310 (Save 54 percent)
- Brisbane Wooden Storage Bench $243 (Save 62 percent)
- Kordell Nine-Piece Rattan Sectional Seating Group with Cushions $1800 (Save 27 percent)
- Nelsonville 12-Piece Multiple Chairs Seating Group $1860 (Save 56 percent)
- Collingswood Three-Piece Seating Group with Cushions $410 (Save 33 percent)

Grills and Accessories

Dyna-Glo electric smoker.
Dyna-Glo/Wayfair

- Spirit® II E-310 Gas Grill $479 (Save 17 percent)
- Portable Three-Burner Propane Gas Grill $104 (Save 20 percent)
- Digital Bluetooth Electric Smoker $224 (Save 25 percent)
- Cuisinart Grilling Tool Set $38 (Save 5 percent)

Outdoor games

American flag cornhole game.
GoSports

- American Flag Cornhole Board $57 (Save 19 percent)
- Giant Four in a Row Game $30 (Save 6 percent)
- Giant Jenga Game $119 (Save 30 percent)

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No Squawking, Please: A Backyard Bird Library Is the Star of This Livestream

Bird Library, YouTube
Bird Library, YouTube

Many people discovered backyard birding when they were quarantined in their homes at the start of the COVID-19 pandemic. Even if you have a vibrant wildlife population in your area, the Bird Library webcam is worth checking out. As Atlas Obscura reports, the bird feeder at the focus of the livestream resembles a tiny library where feathered guests can misbehave.

Librarian Rebecca Flowers and woodworker Kevin Cwalina were inspired to build the Bird Library in 2015. Located in a backyard in Charlottesville, Virginia, it features a miniature reading chair, bookshelves, and a reception desk. The decorations are even updated to match the seasons; the feeder currently sports a banner that says "Summer Reading." The main differences setting it apart from a real library are the bird seed scattered on the floor and the avian visitors.

The Bird Library attracts a diverse collection of patrons. Sparrows, cardinals, and mourning doves have been recorded perching on the librarian's desk and checking out the reading materials. The occasional squirrel has also been known to stop by.

Live video of the feeder streams on the Bird Library's YouTube page and website 24 hours a day, 7 days a week. You can play the video below to check in on the current guests. If the backyard Bird Library has inspired you to find birds closer to home, here's some gear for beginner naturalists.

[h/t Atlas Obscura]