Here's Your Jetpack

Jetpacks have long been a staple of American futurism: we believe that soon, just down the line a bit, we'll be able to strap on a jet-powered backpack and fly to work. But, decade after decade, no jetpacks. At least not at my house. The "Where's My Jetpack?" notion is such a mainstay of futurist thinking that it's the title of a book. But despite not having your own jetpack, various prototypes have been built and actually worked. Let's have a look at the best-known jetpack, which was actually called a "rocket belt."

The Bell Aerosystems Rocket Belt

Bell Aerosystems developed the Rocket Belt under contract with the US Army. Its flying time was extremely limited (about 20 seconds), but it actually worked -- tests were carried out throughout the 1960s, as well as flights at the 1984 and 1996 Summer Olympics. In the demo video below (circa 1966), test pilot Bill Suitor demonstrates the pack, explaining that a timer buzzes against his skull as he flies -- if he runs out of jet fuel, he crashes to the ground. (Incidentally, apparently this happened to inventor Wendell Moore in an early test flight, causing Moore to break a kneecap and stop flying. The early test flights used a ground tether to prevent enthusiastic novice pilots from shooting up too high to safely descend within the 20-second-ish window.) When asked about parachutes and other methods of descent in this video, Suitor chuckles and says, "We rely on gravity." He has a point -- he's not flying high enough for a parachute to help. BEHOLD:

Suitor flew 1,200 times using this device, and wrote a book about being a jetpack pilot, called The Rocketbelt Pilot's Manual. He appeared in a laundry list of TV shows and movies piloting the pack, including: The A-Team, The Fall Guy, Gilligan's Island, Lost in Space, Newhart (!), The Six Million Dollar Man, and the Bond movie Thunderball.

And here's some footage (no sound) of two Bell Rocket Belts flying simultaneously (note the 16mm movie camera mounted on one pilot's helmet). Because of the time limitations, this one-minute movie must have entailed multiple refueling sessions.

And here's Suitor flying at Disneyland in 1965:

(The title of this video says the event took place in 1966, but helpful commenters helped determine that it was probably taken in late December, 1965.)

And a seven-minute History Channel clip about the Rocket Belt:

You can also watch a ten-minute silent film featuring various clips of test flights in the 1960s.

Although the Bell Rocket Belt is the best-known working jetpack, there have been others. NASA uses a jetpack on its EVAs so astronauts can maneuver and return to the spacecraft (plus, there were early plans for a Bell product to go to the Moon on the Apollo missions, notably a two-man variant called the Bell POGO), and various private companies have worked on the technology -- Wikipedia's jetpack page has a good roundup. Also relevant is a MythBusters episode in which the guys attempt to build a jetpack.

So, to answer the "Where's my jetpack?" question: it has been around in various forms since the 1960s, but it's dangerous, requires extensive training to operate, and has run times measured in seconds. But, hey, it exists.

The Jetpack Murder

There's a curious 1990s coda to the jetpack saga involving an "RB-2000" jetpack and an unsolved murder. You can read all about it from Atlas Obscura. Here's a tidbit:

By the time the RB-2000 was flying over the Houston Ship Channel, the company was already in ruins. Barker and Stanley were at each others throats, while the third partner Joe Wright had a failing car stereo business and a escalating crystal meth addiction. Even before the inaugural flight of the belt, Barker and Stanley had had a terrible falling out. Stanley believed Barker was stealing money from the company and when he confronted Barker, they fought violently. From a 2002 Sunday Herald article:

"Stanley got in my face," Barker recalls. "I grabbed a five-pound, dead-blow, lead-filled hammer off the table. I hit Stanley short blows twice to the back of the head. That pretty much ended the partnership."

Read the rest. It's worth it. The book Jetpack Dreams also covers this topic in depth.

See also: Jetpacks: The Future Is Now; Where's My Jetpack?

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Feeling Down? Lifting Weights Can Lift Your Mood, Too
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There’s plenty of research that suggests that exercise can be an effective treatment for depression. In some cases of depression, in fact—particularly less-severe ones—scientists have found that exercise can be as effective as antidepressants, which don’t work for everyone and can come with some annoying side effects. Previous studies have largely concentrated on aerobic exercise, like running, but new research shows that weight lifting can be a useful depression treatment, too.

The study in JAMA Psychiatry, led by sports scientists at the University of Limerick in Ireland, examined the results of 33 previous clinical trials that analyzed a total of 1877 participants. It found that resistance training—lifting weights, using resistance bands, doing push ups, and any other exercises targeted at strengthening muscles rather than increasing heart rate—significantly reduced symptoms of depression.

This held true regardless of how healthy people were overall, how much of the exercises they were assigned to do, or how much stronger they got as a result. While the effect wasn’t as strong in blinded trials—where the assessors don’t know who is in the control group and who isn’t, as is the case in higher-quality studies—it was still notable. According to first author Brett Gordon, these trials showed a medium effect, while others showed a large effect, but both were statistically significant.

The studies in the paper all looked at the effects of these training regimes on people with mild to moderate depression, and the results might not translate to people with severe depression. Unfortunately, many of the studies analyzed didn’t include information on whether or not the patients were taking antidepressants, so the researchers weren’t able to determine what role medications might play in this. However, Gordon tells Mental Floss in an email that “the available evidence supports that [resistance training] may be an effective alternative and/or adjuvant therapy for depressive symptoms that could be prescribed on its own and/or in conjunction with other depression treatments,” like therapy or medication.

There haven’t been a lot of studies yet comparing whether aerobic exercise or resistance training might be better at alleviating depressive symptoms, and future research might tackle that question. Even if one does turn out to be better than the other, though, it seems that just getting to the gym can make a big difference.

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Uncombable Hair Syndrome Is a Real—and Very Rare—Genetic Condition
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Everyone has bad hair days from time to time, but for roughly 100 people around the world, unmanageable hair is an actual medical condition.

Uncombable hair syndrome, also known as spun glass hair syndrome, is a rare condition caused by a genetic mutation that affects the formation and shape of hair shafts, BuzzFeed reports. People with the condition tend to have dry, unruly hair that can't be combed flat. It grows slower than normal and is typically silver, blond, or straw-colored. For some people, the symptoms disappear with age.

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Although there have been only about 100 documented cases worldwide, one of the world's leading researchers on the condition, Regina Betz, of Germany's University of Bonn, believes there could be thousands of others who have it but have not been diagnosed. Some have speculated that Einstein had the condition, but without a genetic test, it's impossible to know for sure.

An 18-month-old American girl named Taylor McGowan is one of the few people with this syndrome. Her parents sent blood samples to Betz to see if they were carriers of the gene mutation, and the results came back positive for variations of PADI3, one of three genes responsible for the syndrome. According to IFL Science, the condition is recessive, meaning that it "only presents when individuals receive mutant gene copies from both parents." Hence it's so uncommon.

Taylor's parents have embraced their daughter's unique 'do, creating a Facebook page called Baby Einstein 2.0 to share Taylor's story and educate others about the condition.

"It's what makes her look ever so special, just like Albert Einstein," Taylor's mom, Cara, says in a video uploaded to YouTube by SWNS TV. "We wanted to share her story with the world in hopes of spreading awareness."

[h/t BuzzFeed]

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