London:
What if you can change colours of your clothes to suit the ambiance of
where you can be just like a chameleon? This could soon be a reality as a
textile designers have now come up with an interactive electronic
fabric that can change colours in ...
|
Sun got a mysterious hole: Nasa
It appears dark in extreme ultraviolet light as there is less material to emit in these wavelengths.
CALIFORNIA: A mysterious squarish hole in our sun from where solar wind
is streaming out at a super fast speed has been captured. Luckily for
us, it is positioned so far south on the sun that there is less chance
that the solar wind stream will impact the earth.
The coronal hole is clearly visible as the sun rotates, appearing to be a black abyss into the centre of the sun, Nasa reported.
In the Nasa video, the massive hole appears to flicker and spark as it rotates past the camera.
Such holes may appear at any time of the solar cycle but they are most common during the declining phase of the cycle.
"A coronal hole, almost square in its shape, is one of the most noticeable features on the sun of late," the space agency said in a statement.
It appears dark in extreme ultraviolet light as there is less material to emit in these wavelengths.
"Inside the coronal hole, you can see bright loops where the hot plasma outlines little pieces of the solar magnetic field sticking above the surface," Nasa added.
Solar flares can damage satellites and have an enormous financial cost.
The charged particles can also threaten airlines by disturbing the earth's magnetic field.
Very large flares can even create currents within electricity grids and knock out energy supplies.
The coronal hole is clearly visible as the sun rotates, appearing to be a black abyss into the centre of the sun, Nasa reported.
In the Nasa video, the massive hole appears to flicker and spark as it rotates past the camera.
Such holes may appear at any time of the solar cycle but they are most common during the declining phase of the cycle.
"A coronal hole, almost square in its shape, is one of the most noticeable features on the sun of late," the space agency said in a statement.
It appears dark in extreme ultraviolet light as there is less material to emit in these wavelengths.
"Inside the coronal hole, you can see bright loops where the hot plasma outlines little pieces of the solar magnetic field sticking above the surface," Nasa added.
Solar flares can damage satellites and have an enormous financial cost.
The charged particles can also threaten airlines by disturbing the earth's magnetic field.
Very large flares can even create currents within electricity grids and knock out energy supplies.
First electric aircraft takes flight
First electric aircraft
RELATED
LONDON:
The world's first airplane completely powered by electricity has
successfully taken to the skies for its maiden flight, and could bring
down air travel cost by more than a third, its developer Airbus said.
The small experimental aircraft called 'E-Fan' carried its first flight at an airport near Bordeaux in southwestern France, and could prove to be a key step towards greener, quieter and cheaper air travel. Manufactured by Toulouse-based Airbus, E-Fan measures little more than 19 feet from nose to tail and makes slightly more noise than a hairdryer.
Powered by 120 lithium-ion polymer batteries, the plane's first official flight last month lasted less than 10 minutes, though the plane has the capability to fly for around an hour before recharging. An hour-long commercial flight with the E-Fan, according to Airbus, could cost only $16, compared to $55 for a flight in a petrol-powered plane of the same size, 'Inhabitat.com' reported.
The electric E-Fan training aircraft is a highly innovative technology experimental demonstrator based on an all-composite construction, Airbus said on its website. "The E-Fan project and Airbus Group's commitment to the field of electric and hybrid research show our vision of future technological developments," said said Airbus Group chief technical officer Jean Botti.
"It will not only lead to a further reduction in aircraft emissions and noise to support our environmental goals but will also lead to more economic and efficient aircraft technology in the long run," said Botti.
Airbus plans to manufacture two versions of the E-Fan. The two-seater E-Fan 2.0 will be a fully electric training aircraft, while E-Fan 4.0 will be used for both training and general flight purposes and will be powered by a hybrid system, the report said.
Airbus Group and its partners are aiming to perform research and development to construct a series version of the E-Fan and propose an industrial plan for a production facility close to Bordeaux Airport, Airbus said.
The small experimental aircraft called 'E-Fan' carried its first flight at an airport near Bordeaux in southwestern France, and could prove to be a key step towards greener, quieter and cheaper air travel. Manufactured by Toulouse-based Airbus, E-Fan measures little more than 19 feet from nose to tail and makes slightly more noise than a hairdryer.
Powered by 120 lithium-ion polymer batteries, the plane's first official flight last month lasted less than 10 minutes, though the plane has the capability to fly for around an hour before recharging. An hour-long commercial flight with the E-Fan, according to Airbus, could cost only $16, compared to $55 for a flight in a petrol-powered plane of the same size, 'Inhabitat.com' reported.
The electric E-Fan training aircraft is a highly innovative technology experimental demonstrator based on an all-composite construction, Airbus said on its website. "The E-Fan project and Airbus Group's commitment to the field of electric and hybrid research show our vision of future technological developments," said said Airbus Group chief technical officer Jean Botti.
"It will not only lead to a further reduction in aircraft emissions and noise to support our environmental goals but will also lead to more economic and efficient aircraft technology in the long run," said Botti.
Airbus plans to manufacture two versions of the E-Fan. The two-seater E-Fan 2.0 will be a fully electric training aircraft, while E-Fan 4.0 will be used for both training and general flight purposes and will be powered by a hybrid system, the report said.
Airbus Group and its partners are aiming to perform research and development to construct a series version of the E-Fan and propose an industrial plan for a production facility close to Bordeaux Airport, Airbus said.
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