Hurricanes are tropical cyclones. When a tropical cyclone's sustained winds reach 39 to 73 mph (63 to 118 km/h), it is considered a tropical storm and it gets a name from a list put out by the World Meteorological Organization. Once those sustained winds reach 74 to 95 mph (119 to 1...
You can see just how big a wind turbine is compared to this engineer, who's standing right inside the nacelle (main unit) carrying out maintenance. Notice how the white blades at the front connect via an axle (gray—under the engineer's feet) to the gearbox and generator behind (blue)...
While an aircraft's wings are very large, thehigh density of water compared to airmeans that we only need very small hydrofoils to produce a lot of the important lift force. A hydrofoil just the size of three A3 sheets of paper, when moving at just 10 mph, can produce enough lift to ...
Things change when you steer a kite aggressively from one position to another. The amount of power generated can be enormous. Doing the same thing with a large kite in strong winds is much like revving a big 1000cc bike, and then popping the clutch. One second its docile, the next, fer...
JJ's had been closed for two months earlier in the year to convert to a more fast-casual style of place. I like it. Lots of room, lots of seating at the big bar (with a full bar and lots on tap), they have a back patio with the all-but-required garage door, and of course ...
drinks and lunch after losing on day one and losing overall. We played three rounds and Eastern Illinois won or tied almost every match. Only one Bucknellian played poorly compared to his handicap and somehow a couple of EIers played the round of their lives. I will say the group had fun...
Like the previous landing scenario, a “low approach” is not a “landing,” as compared to a touch-and-go, stop-and-go, full stop, or “the option.” Conflicts here can result when two aircraft, with different size/speed/performance characteristics, and pilot techniques/preferences, are ...
In this example, the resolution of the parametric surface has been increased by setting theMaximum number of knotsto 100 (the default is 20). In addition, theRelative toleranceis relaxed to 1e-3 (the default is 1e-6). The underlying representation of the parametric surface is based on non...