#Update: Stretch goal for $75,000: 4 different under deck graphics designs to choose from.
At Teamgee, we make the best electric board and serve the coolest people. Over the past few years, we have received many favorable comments from previous customers.
But we didn’t stop there.
SAIL is a revolutionary electric skateboard designed for everyone. At only 11 lbs in weight, you can take this ultra-thin yet powerful skateboard anywhere you go.
Review of SAIL by Paolo
Review of SAIL by Natalie Pluto
Whether you are a beginner or a professional, SAIL offers more fun than you could ever imagine.
Thanks to its powerful brushless motors, SAIL can travel at up to 20 mph with 14 miles of range on a single charge. It puts fun into your commute.
Feel the wind in your hair and freedom beneath your feet as you cruise along at a top speed of 20 mph. Built with 2 different speed modes, allowing you to stay comfortable on the board.
Powered by a single silent in-wheel hub motor, SAIL has a range of 14 miles and will get you where you’re going, fast.
SAIL offers an even better experience than the traditional skateboard, with all the futuristic features the traditional board doesn’t have.
SAIL is built with an advanced battery bank that is as thin as the deck itself and built right into it.
Advanced built-in battery bank
No more bulky battery packs! You don’t have to worry about damaging it or getting it wet. Just a lean, powerful board beneath your feet.
Easy to learn.
Designed to accommodate any level of expertise–from the timid amateur to the adrenaline-seeking veteran, SAIL is the easiest electric board to jump on and start cruising.
Drop Through Deck
Thanks to its integrated battery, shorter trucks and drop through deck, Sail sits closer to the ground. This lowered center of gravity offers better rider balance and easier turning or carving. It’s for everyone.
Built to last.
The deck is made of 11-Ply Canadian Maple and Carbon Fiber, giving it a strong durability but also allowing it to bend and flex like a regular longboard. This design also allows the integrated battery cells to stay protected and bend with the board.
SAIL uses 90 mm PU wheels, meaning less drag, longer lasting, lighter, smoother brakes, and a silent ride (you will hear no extraneous sound like you’d notice on belt-driven systems).
You’ll also be able to kick push the SAIL when the battery runs out.
The in-wheel hub motors also have regenerative braking, meaning the battery recharges as you go downhill or slow down.
Regenerative braking for longer ride
With its intuitive ergonomic remote, SAIL is easy to control. Its acceleration and deceleration respond quickly, allowing you to find the perfect speed and slow down right when you need to.
Featuring an intuitive design, SAIL’s ergonomic remote control not only allows you to control your board perfectly but also keeps you informed about your speed, battery status, and even the direction of your SAIL.
We began our business as an OEM and ODM of various electronic components, but we definitely didn’t limit ourselves. In the past few years, we have established ourselves in the E-mobility world by offering products such as the hoverboard, electric-scooter and unicycle.
In 2016, we started to get into the electric skateboard business and have been selling EXTREMELY well in the Chinese market.
Got any news, tips or want to contact us directly? Feel free to email us: esistme@gmail.com.
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This article and images were originally posted on [kickstarter]. Credit to the original author and kickstarter | ESIST.T>G>S Recommended Articles Of The Day
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According to New on MIT Technology Review
Back in 2012, a curious debate emerged on the discussion website Reddit, specifically on a subreddit called /r/MapPorn. Here the user Kepleronlyknows posted a map of the world purporting to show the longest navigable straight-line path over water without hitting land. The route began in Pakistan and followed a great circle under Africa and South America until it hit eastern Russia.
The post generated huge debate, with much head-scratching and pawing over charts and globes. The big question was whether the claim was correct—could there be a different straight-line route over water that was longer but uninterrupted by land of any kind? At the same time, same question arose for land—what was the longest straight-line route uninterrupted by lakes or seas?
For cartographers, it is clear that the answers would have to follow a great circle: an arc along one of the many largest imaginary circles that can be drawn around a sphere. Great circles always follow the shortest path between two points on a sphere. But how to find the great circles that contain the solutions?
The longest straight-line land journey on Earth.
We now have an answer thanks to the work of Rohan Chabukswar at the United Technologies Research Center in Ireland and Kushal Mukherjee at IBM Research in India. These guys have developed an algorithm for calculating the longest straight-line path on land or sea.
One way to solve this problem is by brute force—measuring the length of every possible straight-line path over land and water. This would be time-consuming to say the least. A global map with resolution of 1.85 kilometers has over 230 billion great circles. Each of these consists of 21,600 individual points, making a total of over five trillion points to consider.
The longest straight-line sea journey without hitting land.
But Chabukswar and Mukherjee have developed a quicker method using an algorithm that exploits a technique known as branch and bound.
This works by considering potential solutions as branches on a tree. Instead of evaluating all solutions, the algorithm checks one branch after another. That’s called branching, and it is essentially the same as a brute-force search. But another technique, called bounding, significantly reduces the task. Each branch contains a subset of potential solutions, one of which is the optimal solution. The trick is to find a property of the subsets that depends on how close the solutions come to the optimal one.
The bounding part of the algorithm measures this property to determine whether the subset of solutions is closer to the optimal value. If it isn’t, the algorithm ignores this branch entirely. If it is closer, this becomes the best subset of solutions, and the next branch is compared against it.
This process continues until all branches have been tested, revealing the one that contains the optimal solution. The branching algorithm then divides this branch up into smaller branches and the process repeats until it arrives at the single optimal solution.
The trick that Chabukswar and Mukherjee have perfected is to find a mathematical property of great-circle paths that bounds the optimal solution for straight-line paths. They then create an algorithm that uses this to find the longest path.
“The algorithm returned the longest path in about 10 minutes of computation for water path, and 45 minutes of computation for land path on a standard laptop,” say the researchers.
It turns out that Kepleronlyknows was entirely correct. The longest straight-line path over water begins in Sonmiani, Balochistan, Pakistan, passes between Africa and Madagascar and then between Antarctica and Tierra del Fuego in South America, and ends in the Karaginsky District, Kamchatka Krai, in Russia. It is 32,089.7 kilometers long.
“This path is visually the same one as found by kepleronlyknows, thus proving his [sic] assertion,” say Chabukswar and Mukherjee.
The longest path over land runs from near Jinjiang, Fujian, in China, weaves through Mongolia Kazakhstan and Russia, and finally reaches Europe to finish near Sagres in Portugal. In total the route passes through 15 countries over 11,241.1 kilometers.
The question now is: who will be the first to make these journeys, when, and how?
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