Not content to just lounge around the beach? You might want to try ocean kayaking! Sometimes called sea kayaking Black Rashaad Penny Jersey
, it is the sport of paddling on open waters using kayaks, which are small boats propelled by paddlers using double-bladed paddles. Kayaks typically have a covered deck and a spraydeck that covers the cockpit to prevent paddlers from inclement weather or in the case of whitewater kayaking, to prevent water from entering the boat. A spraydeck also allows one or more passengers to sit on the boat and steer it by paddling or rowing. Kayaks resemble canoes, and in fact are called such in Ireland and Great Britain.
Sea kayaks or ocean kayaks can be used from as short as few hours to as long as weeks. It can accommodate more than two paddlers together, with ample space for camping gear, water, food and other important supplies. Ocean kayaking allows paddlers to experience the vast expanse of the sea as their playground.
From their origins as the native wooden boats of northern Canada Black Richard Sherman Jersey
, Alaska and Southwest Greenland, contemporary ocean kayaks now come in a variety of shapes and sizes, depending on the intended use. Some design innovation includes sit-on-top kayak, or the rotomolded boats without an enclosed area, the recreational kayak, or the shorter ocean kayak with large cockpits and wide beams. There's also the inflatable kayak and what is called the surf skis, which are narrow boats mainly used for ocean racing.
Most ocean kayaks range between 12 feet to 24 feet in length. The beam Black Steve Largent Jersey
, which is the width of a typical kayak, may range from 18 inches to 28 inches. The length is an important consideration, as it not only affects its maximum holding capacity for both paddlers and gear but also its tracking capability. Tracking capability refers to the boat's capacity to move in a straight line. Long kayaks are easier to paddle straight, but they're harder to turn. It's also important to take note of the width of the paddle, as it makes an impact on cargo capacity, the size of the cockpit, and the boat's overall stability.
The most important feature in ocean kayaking is the paddler Frank Clark Jersey
, as he is the one who maneuvers the device. It is generally safer to paddle with one or more people, although some famous ocean kayaking expeditions such as the one done by Paul Caffyn in 1977 in New Zealand was done alone.
ABOARD KEXUE, Aug. 14 (Xinhua) -- Chinese scientists on Monday started to explore a seamount named Caroline in the west of the Pacific Ocean for the first time, as a remote operated vehicle (ROV) dived to collect videos, information and samples.
As part of the Caroline Ridge in the Pacific Ocean, the Caroline seamount is located in the south of the Mariana Trench, the deepest place on the Earth Rees Odhiambo Jersey
, and in the east of the Yap Trench, and it has never been explored.
The seamount is about 75 square km, five times larger than it appears in sea chart. Its top, an oval basin, is 28 meters below the sea surface, according to the statistic that the KEXUE (Science) scientific ship collected in the last two days.
The ROV will investigate the south side of the seamount to take videos and collect topographic information and biological samples, said Xu Kuidong Jarran Reed Jersey
, chief scientist aboard the ship and a researcher of the Chinese Academy of Sciences (CAS).
"We see many sea gulls and flying fishes in this area, so we believe that this seamount is rich in biological diversities." Xu said.
Before this scientific voyage, Chinese scientists have investigated the other two seamounts in this area, and they will compare three seamounts in geology, biology and ecology.
"The distance between the two seamounts we investigated before is only 180 kilometers, but they have only 12 percent common biology," Xu said. "It's very interesting to find out what the Caroline has Germain Ifedi Jersey
, the differences of the three seamounts and the reasons."
A seamount is a mountain rising from the ocean seafloor that does not reach the water's surface, and thus is not an island, islet or cliff-rock. Seamounts are typically formed from extinct volcanoes that rise abruptly and are usually found rising from the seafloor to 1,000-4,000 meters in height.
Interactions between seamounts and underwater currents, as well as their elevated position in the water, attract plankton Tedric Thompson Jersey
, corals, fish, and marine mammals alike.
More than 30,000 seamounts have been mapped on the Earth, but only a few have been studied in detail by scientists.
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The cause of sugar cravings is multi-faceted emotional, physical Amara Darboh Jersey
, psychological, serotonin, release of dopamine and much more.
You may never think of chocolate the same and that鈥檚 good news as it鈥檚 at the top of the list of food items most commonly craved. Chocolate and sugary foods release opioids upon consumptions.
Yes, opioids just like opium or heroin.
Opioids will bind to brain receptors, triggering feelings of pleasure and well-being. Further evidence that supports the stimulation of opiate receptors by chocolate is that blocking the receptors will reduce cravings.
A 2005 Swedish study proved that sucrose causes the release of endogenous opioids and thus triggers more sugar consumption. Chocolate also causes the brain to release endorphins and contains small amounts of Anandamide, an endogenous cannibinoid that has similar effects on the brain as marijuana. The cause of sugar cravings is multifaceted.
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