Search This Blog


Sunday, 17 January 2016

Magnetic MoonWalker Shoes Ditch Gravity

A New York-based startup wants to send you there, replicating low-gravity environments with their smart, super-magnetic sneakers.The thick MoonWalker shoes from the startup Moonshine Crea promise to let wearers bounce around like Neil Armstrong. Each shoe contains N45 magnets — a fairly high grade of powerful rare-earth magnet — placed so their north poles face each other, creating a repellent force that “leaves you light on your feet and happy as an astronaut,” 

Hyperloop - The Fifth mode of Transportation

  • Goal:- 
  • Safer
  • Faster
  • Lower cost
  • More convenient
  • Immune to weather
  • Sustainably self-powering
  • Resistant to Earthquakes
  • Not disruptive to those along the route
What is this?

Existing conventional modes of transportation of people consists of four unique types: rail, road, water, and air. These modes of transport tend to be either relatively slow (e.g., road and water), expensive (e.g., air), or a combination of relatively slow and expensive (i.e., rail). Hyperloop is a new mode of transport that seeks to change this paradigm by being both fast and inexpensive for people and goods. Hyperloop is also unique in that it is an open design concept, similar to Linux. Feedback is desired from the community that can help advance the Hyperloop design and bring it from concept to reality. Hyperloop consists of a low pressure tube with capsules that are transported at both low and high speeds throughout the length of the tube. The capsules are supported on a cushion of air, featuring pressurized air and aerodynamic lift. The capsules are accelerated via a magnetic linear accelerator affixed at various stations on the low pressure tube with rotors contained in each capsule. Passengers may enter and exit Hyperloop at stations located either at the ends of the tube, or branches along the tube length.

Monday, 7 September 2015

Canon makes a 250-megapixel image sensor

The megapixel wars broke out on a new front today as Japanese camera giant Canon announced a head-spinning new sensor. The roughly 250-megapixel (19,580 x 12,600) APS-H CMOS sensor sets a world record for resolution in its size, according to a Canon release, and is said to be able to distinguish lettering on the side of an airplane from 18 km away. APS-H is a sensor size bigger than APS-C but smaller than full-frame, and is primarily used on Canon's legacy EOS-1D line of DSLRs.

The sensor has a fast signal readout speed of 1.25 billion pixels a second, and Canon says it has good noise performance despite the pixel count. Beside photos, the sensor can be used to capture incredibly high-resolution video  — about 30 times sharper than 4K — at five frames per second. Canon says the technology could be used in "specialized surveillance and crime prevention tools, ultra-high-resolution measuring instruments and other industrial equipment, and the field of visual expression."
Don't expect this to land in your next DSLR or five, then. But the announcement is a sign that sensor technology will continue to improve; Canon announced a 120-megapixel APS-H sensor back in 2010, when this year's 50-megapixel EOS 5DS would have been unthinkable.

Tuesday, 18 November 2014

New self-filling water bottle harvests drinking water from the air

Austrian designer Kristof Retezar has invented a new device for your bike that collects the moisture contained in the atmosphere, condenses it and stores it as fresh drinking water. 

A new self-filling water bottle has been invented that can not only serve as a nifty device for long bike tours and races, but could also offer a new method of fresh water collection in parts of the world where groundwater sources are hard to come by.
Developed by industrial designer Kristof Retezar from Austria’s University of Applied Arts, the new device - called the ‘Fontus’ - works best in humid weather, which allows it to condense the moisture in the air into safe, fresh drinking water. Experiments have shown that under the right weather conditions, it can produce 0.5 Litres of water in just under an hour.
"My goal was to create a small, compact and self-sufficient device able to absorb humid air, separate water molecules from air molecules and store water in liquid form in a bottle,” says Retezar at the James Dyson Award website.
Retezar says he was inspired to invent the device as something that could be beneficial to some of the 2 billion people in more than 40 countries that live in regions where clean and safe sources of water are scarce. According to the UN, by the year 2030, 47 percent of our global population will be living in areas of high water stress. So he decided to take a 2,000-year-old technology - ancient civilisations from Asia and Central America were some of the first to employ it - that taps into some of the 13,000 kilometres cubed of fresh water held in the Earth’s atmosphere. 
Retezar explains how it works at the James Dyson Award website:
In order to achieve condensation, one must cool hot, humid air down. The device has a small cooler installed in its centre called Peltier Element. This cooler is divided in two: When powered by electricity, the upper side cools down and the bottom side gets hot. The more you cool the hot side down, the colder the upper side will get. Consequently, these two sides are separated and isolated from each other.
The air enters the bottom chamber at a high speed when moving forward with the bike and cools the hot side down. Moreover, when the air enters the upper chamber it is stopped by little walls perforated non-linearly, reducing its speed in order to give the air the needed time to lose its water molecules.
Once the water molecules have been extracted, the droplets flow through a pipe and accumulate in a bottle. This bottle can be easily loosened from its holder for drinking, and any kind of PET 0.5 L bottle will fit.

The Fontus has been entered into theJames Dyson Award, which is an annual, international design competition, and a win could provide Retezar with the capital to jettison his design to the market.