Showing posts with label Hi Tech. Show all posts
Showing posts with label Hi Tech. Show all posts
Tuesday, August 6, 2013
Saturday, May 4, 2013
Solar Airplane
With a wingspan the size of a Boeing Co. 747 jumbo jet, a spindly solar-powered aircraft took to the skies from Moffett Federal Airfield, near San Francisco, on a pioneering flight across the country.
The goal is not speed, because it’s traveling a leisurely 43 mph, or endurance, because it’s making the trip piecemeal. Rather, the goal is to showcase that the trip can be made at all without the use of fuel.
The plane, called Solar Impulse, has an immense 208-foot wing covered with 12,000 solar cells that soak up the sun’s rays and power the plane's four electric motors while simultaneously charging batteries. That means the plane can keep flying at night.
The first leg is an excruciatingly long 18-hour trip from Moffett Field to Phoenix Sky Harbor International Airport.
“It’s never boring because it’s the most revolutionary airplane that exists -- an airplane that flies day and night with no fuel,” .
He took off from Moffett Field at about 6 a.m. Pacific time and is set to land in Phoenix at 1 a.m. Mountain time Saturday.
The journey is based around raising awareness for the adoption of clean technology.
Everything on the plane has been designed to save energy. It weighs just 3,527 pounds, due to lightweight structure, flight instrumentation and engines.
They are planning to fly around the world in a second plane in 2015. That flight will take place over 20 days and 20 nights with several stops.
Monday, January 28, 2013
DEGRESSIVES & computer glasses
-At the bottom (in the direction of your keyboard): a strong correction
-In the middle (in the direction of your screen): a fixed average
-At the top (in the direction of your surroundings up to 2 m: low correction.
They are perfectly adapted to the computer and also ideal for any Office work and in General for all manual or sedentary activities (piano, kitchen, ..). With these glasses of proximity, less fatigue of the eyes under all circumstances.
These lenses are particularly suitable for people who poorly supporting the progressive lenses.
** Example of gradual decrease power glasses + 2.50: power at the bottom of the glass: + 2.50. Power at the top of the glass: + 0.50. Either a gradual decrease in DC, 2.00.
There are also glasses which can be hanged at the neck with click inbetween the lens, glasses to make-up by moving the lens from left to right. The ultra thin near glasses which can be kept in the pocket.
They are products of French see at
http://www.lunettes-presbyte.fr/lunettes-de-maquillage,fr,2,21.cfm
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