Inside the World's Only Public Collection of Mechanical Puzzles

Jennifer Jameson, Flickr // CC BY-NC-ND 2.0 (cropped)
Jennifer Jameson, Flickr // CC BY-NC-ND 2.0 (cropped)

Calling all problem-solvers and puzzle masters: A library in Bloomington, Indiana, is home to the world's only public display of mechanical puzzles. The Jerry Slocum Mechanical Puzzle Collection can be found at Indiana University’s Lilly Library, which also houses rare books and manuscripts, including Queen Elizabeth I's Great Seal and an early printed copy of "The Star Spangled Banner."

The collection is named after Jerry Slocum, a Chicago-area native who started donating his personal collection of puzzles to the library in 2006. The library now has over 34,000 mechanical puzzles, which, unlike jigsaw and crossword puzzles, tend to feature interconnected pieces that must be physically manipulated in order to solve the problem. There are exceptions, though. One subset of mechanical puzzle called an “impossible puzzle” requires no movement at all; instead, the player must figure out how the puzzle was built.

An online database of the collection lets users search by the puzzle’s date of creation, designer, maker, or classification. The oldest item is a 15th-century Khmer iron lock from Cambodia that contains trick locks and keys. But according to Indiana State Library, puzzles weren’t always created for their entertainment value. In the second century BCE, for example, Romano-Celtic puzzle padlocks were used strictly for security purposes. It wasn’t until the 19th century that the puzzle emerged as a fun pastime.

In a YouTube video uploaded by the Indiana Daily Student, the collection’s curator, Andrew Rhoda, tries his hand at the “Gear Cube Extreme,” which looks like a Rubik’s Cube on steroids. “The puzzle is complicated by the addition of gears that move at half-turns while the rest of the puzzle moves at quarter-turns,” Rhoda says in the video.

Unless a particular piece is being conserved, visitors are encouraged to grab a puzzle and start playing inside the library’s reading room. “Mechanical puzzles are really hard to understand if you see them behind glass,” Rhoda told the student news outlet in 2017. “You can sort of understand what is going on with a mechanical puzzle if you look at it behind glass and read an exhibit label. But to really understand the idea behind a puzzle, you have to handle it. You have to play with it. You have to try to solve it.”

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

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Drop Everything! Netflix Just Dropped 15 Classic Episodes of Supermarket Sweep

Lifetime Television
Lifetime Television

In 1965, grocery shopping got a high-octane upgrade with the premiere of Supermarket Sweep on ABC. Now fans have a chance to relive the high stakes and questionable food safety of the game show. As Hypebeast reports, 15 episodes of Supermarket Sweep are available to stream on Netflix.

The show's appearance on Netflix follows news of a new reboot. Earlier in 2020, ABC, the show's original network, picked up a revamped version of Supermarket Sweep hosted and executive-produced by Saturday Night Live-alum Leslie Jones. A release date for the revival hasn't been announced.

The show has been rebooted several times, and the episodes currently streaming on Netflix date back to the 1990s. In every version of the show, contestants compete in a combination of trivia games and speed shopping challenges to take home a cash prize.

If you can't think of anything more entertaining than watching people in Dickies fight over expired produce, you can head to Netflix to start binge-watching all 15 episodes. For more behind-the-scenes secrets from the show's production, check out these facts about Supermarket Sweep.

[h/t Hypebeast]