Friday, August 31, 2007
"On a day when the boatyard guys weren't around, the guy who owns this boat tried to launch it himself. Apparently the boat does have a deadeye in the keel for lifting, but the owner didn't catch on and attached the lifting sling to the shaft, just above the deadeye. Ripping out the engine is messy business, and this incident is further evidence that despite the lifting sling and the engine shaft being adjacent to each other, close still only counts in horseshoes and hand grenades. "
Wednesday, August 29, 2007
Tuesday, August 28, 2007
From the Daily Mail:
Foam swallowed an entire beach and half the nearby buildings, including the local lifeguards’ centre, in a freak display of nature at Yamba in New South Wales. One minute a group of teenage surfers were waiting to catch a wave, the next they were swallowed up in a giant bubble bath. The foam was so light that they could puff it out of their hands and watch it float away.
The foam is created by impurities in the ocean, such as salts, chemicals, dead plants, decomposed fish and excretions from seaweed.
All are churned up together by powerful currents which cause the water to form bubbles.
These bubbles stick to each other as they are carried below the surface by the current towards the shore.
As a wave starts to form on the surface, the motion of the water causes the bubbles to swirl upwards and, massed together, they become foam.
The foam "surfs" towards shore until the wave "crashes", tossing the foam into the air.
Monday, August 27, 2007
The original Tea Party Museum opened in 1973 and included a replica of the Brig Beaver, one of three ships raided by colonists in an act of defiance that helped sparked the American Revolution. The Beaver was hauled out of the water in 2004 and taken to the Gloucester Maritime Heritage Center for what was described at the time as a $300,000 reconstruction.
The current renovation was supposed to double the size of the museum, which is owned by Historic Tours of America based in Key West, Fla. The plans called for the addition of replicas of the Dartmouth and the Eleanor, the two other tall ships raided by colonists in 1773.
Now it is on fire again:
He "came up with the idea one breakfast time, while he was sitting at his kitchen table fiddling with an empty milk carton, which he cut up and made into a scaled-down model."
The boat is 30 feet long, weighs 55 pounds, uses a 170-square-metre piece of Tetrapack paper, and took only two hours to construct. The "artist" said it will survive forty days before it disintegrates into a wet, sinking mass.
It is part of his exhibition named 'Bis ans Ende der Welt' (Until the end of the world).
Wednesday, August 22, 2007
Thursday, August 16, 2007
Tuesday, August 14, 2007
A company that seems to have some trouble designing cast aluminum turbine blades has installed a small number of test turbines in the East River. The currents are so strong that several of the turbine propellers have been sheared off a third of the way down, and stronger replacements were hampered by insufficiently strong bolt connections to the turbine hubs. The East River is not actually a river; it's a tidal strait, and one can easily observe the current moving in opposite directions with the tides. The plan is to install a field of turbines anchored to the bottom of the East River and use the currents to generate electricity for the city.
It is worrying when the founder of the company, Trey Taylor, thinks that: "The only way for us to learn is to get the turbines into the water and start breaking them." The trial turbines — five generating electricity and one housing the dynamometer that measures water rotational speed — have been installed on the bottom of a narrow strip of the river’s eastern channel.
Friday, August 10, 2007
The Optimist New England Championships were held this week in Newport. One thing I noticed immediately was the sail numbers. When I was sailing Optimists, my sail number had four digits...now they are up to five!
There were so many boats that the organizers had to launch the boats in flights (as indicated by this special notice from the regatta webpage).
SPECIAL NOTICE:There were also quite a few Mommy boats on the water; they even had to register with the race committee (notice the numbered flags on the sterns of the Mommy boats).
Sailors Must not leave the spot to which they are currently parked until beach launch is signaled. To control the access to the beach, optis will be called by FLIGHTS. Do not leave until we tell you by bullhorn to get in line for the beach.
Monday, August 06, 2007
In patients treated with duct tape, 85 percent of the warts completely resolved, compared with 60 percent in the cryotherapy group. These results were statistically significant. Resolution of warts treated with duct tape usually occurred within the first 28 days of therapy. If there was no response within the first two weeks, the warts were unlikely to respond to a longer course of therapy. The main adverse outcomes with duct-tape therapy were difficulty keeping the tape on the wart and minor skin irritation. The main adverse effect in the cryotherapy group was mild to severe pain at the freeze site during and after the treatment.
The authors conclude that duct tape occlusive therapy is more effective than cryotherapy in the treatment of common warts. They also state that duct tape therapy is less expensive and has fewer adverse effects than cryotherapy.