THL: Stay a safe distance from vertical surfaces if there are significant waves present in the area. A passing boat or ship may generate big waves that escape your attention until there is no time to escape. An example is the North anchorage of the Golden Gate Bridge (but there are special cases, e.g. rough water classes or the OWRC regatta, when there is a fast flood coming through the Golden Gate, and it is useful to be close to the wall since the current is slower there).

The table on the left gives the speed of waves of different wave lengths in deep water. “Deep” in this context is not an absolute value, but is relative to wave length. The simple relationship starts to to breakdown when the depth of the water is less than 1/4 th the wave length. At that depth the bottom exerts sufficient drag on the wave to slow its motion and thus decrease the wavelength [equations and more about wave speed].
Proposition 65 requires businesses to provide Californians with a clear and reasonable warning about chemicals in the products they purchase, in their home or workplace, or that are released into the environment. By providing this information, Proposition 65 enables Californians to make informed decisions about protecting themselves from exposure to these chemicals. Proposition 65 also prohibits California businesses from knowingly discharging significant amounts of listed chemicals into sources of drinking water.
The WaterRower, unlike conventional indoor rowing machines, creates a non-impact and non-load bearing environment for cross-training and rehabilitation. The users weight is taken off the knees and ankles by the seated position of the exercise and the use of the unique WaterFlywheel creates an evenly loaded stroke eliminating the heavy jarring and loading experienced on conventional rowing machines, making the WaterRower a popular choice for physiotherapy and sports sciences practices around the world.

The first known "modern" rowing races began from competition among the professional watermen in the United Kingdom that provided ferry and taxi service on the River Thames in London. Prizes for wager races were often offered by the London Guilds and Livery Companies or wealthy owners of riverside houses.[10] The oldest surviving such race, Doggett's Coat and Badge was first contested in 1715 and is still held annually from London Bridge to Chelsea.[12] During the 19th century these races were to become numerous and popular, attracting large crowds. Prize matches amongst professionals similarly became popular on other rivers throughout Great Britain in the 19th century, notably on the Tyne. In America, the earliest known race dates back to 1756 in New York, when a pettiauger defeated a Cape Cod whaleboat in a race.[13]
Do you want pre-set workouts? Are you one of those people who can't go for a run without an app, a training plan, and a corresponding diet worksheet? Even if you don't take it that far, pre-programmed workout routines can really enhance your rowing machine experience by varying your workouts and guaranteeing you a challenging session. If you're trying to decide between two machines, you could do worse than to choose one with a good range of built-in workouts.
Major domestic competitions take place in dominant rowing nations and include The Boat Race and Henley Royal Regatta in the United Kingdom, the Australian Rowing Championships in Australia, the Harvard–Yale Regatta and Head of the Charles Regatta in the United States, and Royal Canadian Henley Regatta in Canada. Many other competitions often exist for racing between clubs, schools, and universities in each nation.
Rowing machines were first used in Archaic Greece. Chabrias, an Athenian military general in 4th Century B.C., invented wooden rowing simulators for his inexperienced oarsmen. This enabled them to learn technique and timing before stepping foot on actual water crafts. And it must have worked — Chabrias successfully led numerous naval attacks against the Spartans.
The Challenge AR has the capability to allow the rower to control and adjust the resistance from “Feather light” to “Olympic sprint” delivering a silky smooth resistance to the user’s effort and instantaneous response to input with no “flat sport”.  With water resistance being the most accurate manner in which to simulate actual outdoor rowing, the Challenge AR provides a smooth and consistent sensation throughout the range of motion of the exercise experience.  
In sweep or sweep-oar rowing, each rower has one oar, held with both hands. This is generally done in pairs, fours, and eights. In some regions of the world, each rower in a sweep boat is referred to either as port or starboard, depending on which side of the boat the rower's oar extends to. In other regions, the port side is referred to as stroke side, and the starboard side as bow side; this applies even if the stroke oarsman is rowing on bow side and/or the bow oarsman on stroke side.
Waterrower dimensions: 83'' x 22'' x 21'' / weight: 108 lbs (at minimum water level)built for home use and practically maintenance... free, rowing machine targets all major muscle groups (84% of total muscle mass) w/ excellent adjustable resistance levelsmade of kiln dried harwood for better wood strength and performance; has honey oak finish that goes well w/ other home furnitureboasts a patented water flywheel that mimics the natural dynamics of rowing yet suitable for users w/ joint concerns (chlorine tablet is available free of charge)enjoy 1 year manufacturer's warranty (upgradeable to 3-year parts while 5-year frame is free of charge w/ registration)comes w/ the s4 performance monitor for quickstart of functions and displays intensity, kcalories per hour, strokerate, heartrate, and more!Storage dimensions: 21'' x 22'' x 83'' (easily store it on end)entry height is at 12'' (at 20'' w/ optional hi-rise adaptor)noise/intrusion levels: soothing and relaxing/minimal read more
The WaterRower Oxbridge Rower in Cherrywood is designed for equally gorgeous look and performance. Every detail complements the overall aesthetic and performance of this unparalleled machine. Built in America, the WaterRower Oxbridge Rower in Cherrywood is a product of modern European design. It's hand-crafted in solid ash and stained honey oak for consistency of color. Each machine has been hand-finished with Danish Oil, which lends a deep warmth and luster. Wood has been chosen for its marvelous engineering properties; primary amongst these is its ability to absorb sound and vibration, which enhances the WaterRower Oxbridge Rower quietness and smoothness of use. Ash, like all woods used in WaterRower construction, is a premium hardwood with incredible longevity and dimensional stability. For reasons of ecology, all woods are harvested from renewable forests. The frame is more than stylish; it holds up to 2,200 lbs!
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This elegant rowing machine builds strength and stamina by closely simulating a real world rowing experience. Its patented Waterflywheel, which moves through actual water, provides a smooth stroke that exercises 84% of your muscle mass evenly and prevents injuries. When not in use, the WaterRower can be stored vertically against a wall. Made in the USA from ethically sourced walnut wood. Assembly required.

This elegant rowing machine builds strength and stamina by closely simulating a real world rowing experience. Its patented Waterflywheel, which moves through actual water, provides a smooth stroke that exercises 84% of your muscle mass evenly and prevents injuries. When not in use, the WaterRower can be stored vertically against a wall. Made in the USA from ethically sourced walnut wood. Assembly required.
The WaterRower Classic Rower is outfitted with a Series 4 performance monitor that's designed to balance technical sophistication with user-friendliness. The monitor--which includes six information and programming windows, six QuickSelection buttons, and three navigation buttons--displays your workout intensity, stroke rate, heart rate, zone bar, duration, and distance. Plus, the monitor is compatible with an optional heart rate chest strap and receiver, which helps you optimize your workout and achieve your exercise objectives.
Do you want pre-set workouts? Are you one of those people who can't go for a run without an app, a training plan, and a corresponding diet worksheet? Even if you don't take it that far, pre-programmed workout routines can really enhance your rowing machine experience by varying your workouts and guaranteeing you a challenging session. If you're trying to decide between two machines, you could do worse than to choose one with a good range of built-in workouts.

Rowers may take part in the sport for their leisure or they may row competitively. There are different types of competition in the sport of rowing. In the U.S. all types of races are referred to as regattas whereas this term is only used in the UK for head-to-head or multi-lane races (such as those that take place at Dorney Lake), which generally take place in the summer season. Time trials occur in the UK during the winter, and are referred to as Head races. In the US, head races (usually about 5k, depending on the body of water) are rowed in the fall, while 2k sprint races are rowed in the spring and summer.
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