The billionaire inventor, investor and futurist Elon Musk is set to unveil his detailed proposals for a 4,000mph 'mega train' known as the Hyperloop to connect the east and west coast of the United States.
Musk is the co-founder and CEO of electric car makers Tesla, as well as the private space company SpaceX.
But while you might think a man with two companies, five children and dreams of founding his own colony on Mars might be busy enough, with a networth estimated at around $2.7 billion it turns out he can still find the time, and money, to look for new problems to solve.
This time his idea is based on a principle that's been around for more than a 100 years - a functional, large-scale pneumatic tube train which could propel passengers underground at unimaginably fast speeds.
The Hyperloop was described by Musk earlier this year as "a cross between a Concorde, a railgun and an air hockey table", and would be both relatively low energy and safe, since the system would be totally self-contained.
While such a system would be beautiful to behold - and capable of sending passengers to LA from New York in 45 minutes - it would also be hugely expensive.
But Musk points out that given the extravagant cost of California's already-underway $70 billion 'high speed' rail system - which will be the slowest on the planet when finished - the US can afford to think more creatively about its transport problems.
"What you want is something that never crashes, that's at least twice as fast as a plane, that's solar powered and that leaves right when you arrive, so there is no waiting for a specific departure time," he said previously when asked about the system.
At least one company is already working on a similar idea, and so it's unclear where Musk fits into the scheme. But he now says that he will publish his designs on August 12, as an 'open source' resource to anyone who wants to get involved.
Will publish Hyperloop alpha design by Aug 12. Critical feedback for improvements would be much appreciated.-- Elon Musk (@elonmusk) July 15, 2013
We'll have to wait until then to see what he's come up with. But knowing Musk's work, it will probably turn out to be more insane - and more realistic - than you can reasonably imagine.
Does your baby take up too much space? Is it too stinky? Thankfully, there's <a href="http://www.time.com/time/specials/packages/article/0,28804,1991915_1991909_1991746,00.html">this baby cage</a> that allows you to suspend it out your window! (Photo by Reg Speller/Fox Photos/Getty Images)
Noodle Eater Hair Guard
Ponytails are so passé. The best way to keep your hair out of your noodles: <a href="http://foolishgadgets.com/200901/noodle-eaters-hair-guard/">masks made out of paper plates</a>.
Cigarette Rain Guard
Because sometimes it's raining so hard that even your <a href="http://gizmodo.com/5039920/cigarette-umbrella-keeps-tobacco-torch-dry">cigarette needs an umbrella</a>.
Can you get any lazier? Credit: <a href="http://www.thinkgeek.com/product/cf68/">ThinkGeek</a>
Face Protectors for Snow Storms
For all of those times when a hat isn't enough to keep you warm, you can look like one of those <a href="http://www.coolest-homemade-costumes.com/coolest-the-maitlands-from-beetlejuice-costume-51.html">creepy monsters from Beetlejuice</a>? Credit: <a href="http://www.flickr.com/photos/nationaalarchief/4193509756/sizes/o/">Flickr</a>
If you're not trying to cut your dog in half, you have no business using this device. What's wrong with a good, old-fashioned leash?
"Five-year-old Tim Gregory wears, under protest, a brush that cleans a child's neck without the use of soap and water in Los Angeles, Calif., Jan. 12, 1950. The plastic collar brush will dry-clean the youngster's neck thoroughly as he plays. The brush was developed by the Los Angeles Brush Corp. at a mother's suggestion." What ever happened to a good old fashioned bath? (h/t <a href="http://www.businessinsider.com/50-awesome-inventions-2010-9?op=1">Business Insider</a>)
Portable Record Player
Sure, records player are bulky, but so are records! We're having trouble seeing the point of this one. Credit: <a href="http://www.thinkgeek.com/product/ef06/?srp=1">ThinkGeek</a>
Flexible Flyer Snowball Maker
Because making snowballs is so difficult. <a href="http://www.amazon.com/Flexible-Flyer-Snowball-Maker-colors/dp/B000FJ4AD4/ref=sr_1_cc_1?s=aps&ie=UTF8&qid=1357234965&sr=1-1-catcorr&keywords=snowball+maker">Snowball Maker</a>.
"Jack Milford, player with the Wembley Monarchs ice hockey team, has invented a carrying device so that his baby can join his wife and himself on the ice." Ice skating is more important to this man than the safety of his child. (h/t <a href="http://byutv.org/seethegood/post/The-10-worst-inventions.aspx">ByuTV</a>)
An <a href="http://byutv.org/seethegood/post/The-10-worst-inventions.aspx">effective way</a> to roast yourself to death. (Photo by Yale Joel/Life Magazine/Time & Life Pictures/Getty Images)
At least the baby will have a great immune system after some time being used as a mop and <a href="http://www.betterthanpants.com/baby-mop.html">bathing in dirt</a>.
Double Ended Pipe
For when you and your friend want to <a href="http://all-that-is-interesting.com/bizarre-inventions">conserve tobacco</a> while also sharing a tender moment.
QuikPod Handheld Convertible Tripod
For the <a href="http://en.wiktionary.org/wiki/selfie">"selfie"</a> addict with short arms. <a href="http://www.amazon.com/Quik-Pod-QP-EHHT-Handheld-Convertible/dp/B000NPCI9I/ref=sr_1_1?ie=UTF8&qid=1357233759&sr=8-1&keywords=quikpod">QuikPod</a> Handheld Convertible Tripod. (Amazon)