Military ship travels 60 mph with almost no wake

Dig this: The Department of Defense is developing a ship that can travel at high speeds while producing virtually no wake. It’s called the “M Hull” ship, because its hull is composed of four arches laid sidelong, like two Ms. According to the manufacturers — the M Ship Co. — the arches channel the water into spirals, which reduce drag, improve efficiency, and ease the transition from slow to high speeds. But they also impart an element of stealth, as their press release notes:

The M-hull geometry is designed to capture the bow wave, which is a significant component of the wave pattern around a ship. By capturing the bow wave, the vapour/fluid flow field passively dampens the visible and acoustic signature of the vessel. The stern wake energy that moves away from the ship through the momentum transfer process of water molecules is inhibited by the presence of millions of captured air bubbles under and trailing the ship. In the same way, noise from the vessel’s passage and its machinery is reduced.

Here’s a story about it with a cool graphic illustrating the water spirals.


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I'm Clive Thompson, a writer on science, technology, and culture. This blog collects bits of offbeat research I'm running into, and musings thereon.

Currently, I'm a contributing writer for the New York Times Magazine and a columnist for Wired magazine. I also write for Fast Company and Wired magazine's web site, among other places. Email or AOL IM me (pomeranian99) to say hi or send in something strange!

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The “Milky Way Transit Authority” map

Should automobile software be open-sourced?

My Bookforum review of Jaron Lanier’s “You Are Not A Gadget”

Molecular secrets of the “iron-plated snail”

Garry Kasparov, cyborg

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a bunch of stuff

January 31, 2010 » 07:29 PM
V. A. To me death seems to be an evil.
M. What, to those who are al­ready dead? or to those who must die?
A. To both.
M. It is a mis­ery, then, be­cause an evil?
A. Cer­tain­ly.
M. Then those who have al­ready died, and those who have still got to die, are both mis­er­able?
A. So it ap­pears to me.
M. Then all are mis­er­able?
A. Ev­ery one.

January 24, 2010 » 03:22 PM

One of the more interesting trends is family, which came in at number five. Specifically, discussion about family, moms, dads, daughters, etc. jumped during 2009. With Facebook users getting older, this isn’t a big surprise. However, the fact that the mention of “kids” jumped by a factor of five this year is rather dramatic. It’s tough to know what this means, though. (via Facebook Unveils Most-Mentioned Topics of 2009

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January 15, 2010 » 01:36 PM

BEYOND AWESOME. They are announcing a recall of the Plush Uterus “due to a potential choking hazard for children”. To apply for it, “Please send an email to the address below with the subject line, ‘UTERUS OPT OUT’”.

January 14, 2010 » 10:04 PM

“To order, please TYPE “YES” IN CHECKBOX BELOW TO AGREE YOU UNDERSTAND THIS PLUSH MUST BE KEPT AWAY FROM KIDS (it is a sex organ, after all). If it is not checked, WE WILL NOT SEND THE UTERUS.” (via @ibogost)

January 11, 2010 » 01:45 PM

I watched Space: 1999 back in the day, but I swear to god I do not remember this scene.

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