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How Jetsprint Boats Work – amazing high speed turns on 3 feet of water
by Marshall Brain | February 16, 2011
A friend of mine sent me the following video this morning with the question, “What am I looking at”? This is new to me as well, and fascinating. It is called Jetsprint racing (sometimes called jet boats). You take a short (say 13 foot or 4 meter) V-hull boat, put a big V-8 engine in [...]
You Asked: What is a cutless bearing? —- Bill, The Villages, Fla. Marshall Brain Answers: A cutless bearing (also sometimes spelled cutlass, and also known as a stave bearing) is a part usually found on a boat. It holds the propeller shaft on boats with in-board engines. If you jump forward to the 1:05 point [...]
As you watch the following video, which shows you the world’s 10 largest superyachts, you will notice that they all look like boats. The are long and narrow and pointy at one end: What is about to become the world’s most expensive superyacht is nothing like that. Instead, it looks more like a floating town. [...]
Inventions – Time magazine names the top 50 inventions of 2010
by Marshall Brain | November 12, 2010
It’s coming to be that time of year, when magazines, web sites and news outlets start publishing their “best of” lists for 2010. Here’s one of the first and it is in a HSW sweet spot – Time’s list of the best inventions: The 50 Best Inventions of 2010 The list is broken into sections: [...]
Last week we talked about gasoline direct injection engines that are starting to appear in cars from every major manufacturer. These engines get better gas mileage by allowing higher compression ratios and leaner mixtures. A reader named Chris wrote in and suggested I check out Evinrude’s E-Tec engines. These use direct injection technology on 2-stroke [...]
Which would you rather be driving at your local lake or beach – a Jetski, or one of these: This is the Bavar-2 flying boat, which Iran has equipped with cameras and machine guns to patrol its coastal areas. The best thing about it is its minimalist design. If you look at the photo on [...]
The idea behind recycling is to take trash, break it back down into raw materials and then reuse those raw materials to make new things.
The idea behind upcycling is to take trash itself as a raw material and use it to make new things. The trash directly becomes part of the new object. If you think about it, quilting is a very old example of upcycling.
Here is an example of modern upcycling. In the following video, plastic shopping bags are fused together to make a fabric that is then used to make a messenger bag…
We’ve done a couple of posts before on big yachts:
- World Record #49 – The world’s biggest private yacht
And there are many amazing yacht concepts, as seen here:
But there this something about the new Wally Hermes Yacht that seems like it is trying to reconceptualize the whole space. It’s shape is different, its layout is different, and it is gigantic – nearly an acre of floor space. You can get a good view of it in this video…
As boats go, this one is pretty amazing. It is called the M80 Stiletto and it has a top speed of 50 knots….
Inspired by listener mail, the guys decide to cover boats for the first time — and what better way to begin than by covering offshore racing? Tune in as Scott and Ben take a look at the thrilling — and potentially dangerous — world of offshore racing.
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