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Airless tire test Humvee vs Hummer
Non-pneumatic tires (NPT), or Airless tires, are tires that are not
supported by air pressure. They are used on some small vehicles such as
riding lawn mowers and motorized golf carts. They are also used on heavy
equipment such as backhoes, which are required to operate on sites such as
building demolition, where tire puncture is likely. Tires composed of
closed-cell polyurethane foam are also made for bicycles and wheelchairs.
The main advantage of airless tires is that they cannot go flat, but they
are far less common than air filled tires.
Airless tires generally have higher rolling resistance and provide much
less suspension than similarly shaped and sized pneumatic tires. Other
problems for airless tires include dissipating the heat buildup that occurs
when they are driven. Airless tires are often filled with compressed
polymers (plastic), rather than air.
Michelin is currently developing an integrated tire and wheel combination,
the "Tweel" (derived from "tire" and "wheel," which, as the name "Tweel"
suggests, are combined into one new, fused part), that operates entirely
without air. Michelin claims its "Tweel" has load carrying, shock
absorbing, and handling characteristics that compare favorably to
conventional pneumatic tires. Automotive engineering group of mechanical
engineering department at Clemson University is developing a low energy
loss airless tire with Michelin through the NIST ATP project.
Resilient Technologies and the University of Wisconsin--Madison's Polymer
Engineering Center are creating a "non-pneumatic tire", which is basically
a round polymeric honeycomb wrapped with a thick, black tread. The initial
version of the tire is for the Humvee and is expected to be available in
Naked surfing girls
2010 Mercedes-Benz Biome Concept
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At the 2010 Los Angeles Design Challenge, the designers from the
Mercedes-Benz Advanced Design Studios in Carlsbad, California, surprised
everyone with a revolutionary vision. Taking their inspiration from nature,
they designed a vehicle which is fully integrated into the ecosystem, from
the moment of its creation right through to the end of its service life.
The Mercedes-Benz BIOME Concept grows in a completely organic environment
from seeds sown in a nursery. Out on the road the car emits pure oxygen,
and at the end of its lifespan it can be simply composted or used as
"As the inventor of the motor car, we wanted to illustrate the vision of
the perfect vehicle of the future, which is created and functions in
complete symbiosis with nature. The Mercedes-Benz BIOME Concept is a
natural technology hybrid, and forms part of our earth's ecosystem. It
grows and thrives like the leaves on a tree" according to Hubert Lee, Head
of the Mercedes-Benz Advanced Design Studios in Carlsbad. This year the
competition had called for the creation of a vision of a safe and
comfortable 2+2 compact car featuring good handling and a first-class
design, and weighing only 1,000 lbs (around 454 kg/kerb weight).
Mercedes-Benz symbiosis - a partnership with nature
The Mercedes-Benz BIOME Concept symbiosis vehicle is made from an
ultralight material called BioFibre and tips the scales at just 875.5 lbs
(around 394 kg). This material is significantly lighter than metal or
plastic, yet more robust than steel. BioFibre is grown from proprietary DNA
in the Mercedes-Benz nursery, where it collects energy from the sun and
stores it in a liquid chemical bond called BioNectar4534. As part of this
process, the vehicle is created from two seeds: The interior of the BIOME
grows from the DNA in the Mercedes star on the front of the vehicle, while
the exterior grows from the star on the rear. To accommodate specific
customer requirements, the Mercedes star is genetically engineered in each
case, and the vehicle "grows" when the genetic code is combined with the
seed capsule. The wheels are grown from four separate seeds.
The Mercedes-Benz BIOME Concept is powered by BioNectar4534, which is
stored in the BioFibre material of the chassis, interior, and wheels. In
addition, Mercedes-Benz has developed a technology to equip trees with
special receptors which can collect the excess solar energy and turn it
into BioNectar4534. This creates a direct link with nature's energy sources
and acts as an incentive to cover mobility energy requirements through more
trees and at the same time maintain natural resources. Like plants, the
Mercedes-Benz symbiosis vehicle also produces oxygen, thereby contributing
to improving air quality. At the end of its service life, the Mercedes-Benz
BIOME can be fully composted or used as building material. Thanks to the
exclusive use of green technologies, the BIOME vehicle thus blends
seamlessly into the ecosystem.
Burning Man 2009 - The Mondo Spider
The Mondo Spider (http://mondospider.com) is a diesel-powered hydraulic
walking machine. It weights about 1,600 lb.
To see more of my videos, subscribe to my channel:
De-Inventing The Wheel - This ridable mechanical walking machine was
designed by a team of artists and engineers as an industrial metal beast
destined to rock Burning Man and the world of kinetic sculpture. Inspired
by Vancouver Junkyard Wars, this giant hydraulic monster was hewn from
steel with passion and precision. Call it robot... call it biomimicry...
call it what you will... We call it... The MONDO SPIDER.
It was originally shown at Burning Man 2006: Hope and Fear.
For more information about this motorized spider, go to
The Mondo Spider was designed by Leigh Christie, Jonathan Tippett, Charlie
Brinson, Ryan Johnston and a bunch of other peeps from the eatART
Foundation http://eatART.org/ (although the Mondo Spider predates eatART).
Video shot at the Burning Man 2009 festival (Black Rock Desert, Nevada).
The 2010 version of the Mondo Spider is zero-emission electrical,
battery-powered, with batteries recharged using solar panels.
If you like this, check out my Burning Man photos at
http://www.loupiote.com/burningman and my Photography Gallery at
http://www.loupiote.com and don't hesitate to leave a comment.
Exclusive: Trams in Tver, Russia part I (Трамваи в г. Тверь) 2010
Трамваи в г. Тверь
tver is a major city that is almost located halfway between st petersburg
and moscow, russia (but closer to Moscow). its fun to watch the old trams
of minor russian cities instead of the trams in the capital or in st
-the same trams but in different colors in 2012