The future of the flight seems safe, with engineers using carbon nanotubes only billionths of the meter thick to stitch together aerospace materials in work could make airplane skins and other products some 10 times stronger at a nominal increase in cost. Advanced composites reinforced with nanotubes will have greater protection against damage from lightning.
The advanced materials currently used in aircraft are composed of layers, or piles of carbon fibers that are in turn held together by glue. The glue can crack and otherwise result in the carbon fiber piles coming apart.
The new polymer glue between two carbon fiber layers is heated. Becoming more liquid-like. Billions of nanotubes positioned perpendicular to each carbon fiber layer is then sucked up into the glue on both sides of each layers. Because the nanotubes are 1000 times smaller than the carbon fibers, they don’t affect the much larger carbon fibers. They fill the spaces around them stitching the layers together.
An asteroid of the similar size of the rock exploded over Siberia in 1908 with a force of thousand atomic bombs whizzed close to earth recently. The space rock, the size of a 10-storey building, was about 115 feet wide created a colossal explosion in air above Siberia in 1908 that flattened 2000 square kilometers of forest. DD45 estimated to be between 68 and 152 feet across, raced by earth recently. The gap was just 72,000 kilometers or a fifth of the distance between earth and moon and only twice the height of satellites in geosynchronous orbit. Astronomers now know that the asteroid is moving within the inner solar system and that the space rock completes an orbit around sun every 1.56 years. This means the asteroid could swing close to Earth again someday.
The red tides are a natural phenomenon caused by high concentration of microscopic algae that are poisonous. The organism produces a toxin that affects the central nervous system of fish, paralyzing them. As a result, dead fish are washed ashore. They can cause human illness and deaths too, following consumption of toxic fish. When red tide algae reproduce in dense concentrations or ‘blooms’ they are visible as reddish patches. They occur due to temperature, salinity and nutrients reaching certain limits, besides lack of winds and rainfall and cannot be controlled by human beings.
The Solar Balloon is designed to trap energy using an inflatable plastic thin-film balloon called a solar concentrator. Half the balloon is transparent. When inflated, sunlight falls on it and focuses on a photovoltaic cell placed at its centre. This design reflects sunlight, producing 400 times the electricity that a solar cell would create without the concentrator and has been created by a company called Cool Earth. The film is abundant and cheap and does away with large expensive solar panels or costly concentrating mirrors. It can trap 500 watt to 1 kilowatt of solar energy.
Scientists have developed a new flat and flexible loudspeaker, less than 0.2 mm thick. A team developed the amplifying box which is not only flat and flexible, but would be hung on a wall like a picture, and its particular method of sound generation could make public announcements in places like passenger terminals easy to hear. The speakers are slim and flexible. These could also be concealed inside ceiling tiles or car interiors.
European astronomers said that an anomalous energy signal detected by an orbiting satellite could be a telltale of the enigmatic substance known as black matter. Some years ago, astrophysics calculating the amount of matter in the Universe arrived at the startling discovery that ordinary material – atoms- comprises perhaps as little as 5% of the stuff in the cosmos. The space-based experiment known as Pamela, was launched in 2006 and carries instruments designed to investigate dark matter particles. Dark matter, which believes to account for 23% of the Universe, has been detected only indirectly, through the gravitational pull it exerts on the visible matter. Another theory suggests that dark matter must be a new particle that interact so weakly with ordinary matter that it does not produce light-emitting reactions.
To locate an object in a plane, we require four dimensions – length, breadth, height and time. We all travel frequently in the first three dimensions, but can’t do it in the fourth dimension ‘time’. A time machine is a device or vehicle that can potentially take us into the future or past. There was a great movie with the name ‘Time Machine’. If you watch that movie you will know the concept of Time Machine. If you want to go to your past or future then just have the time machine with you.
The most common sort of spoofing online is ‘e-mail spoofing’, i.e. making an e-mail message appear to have come from one place when really it comes from another. It is generally used by spammers, who do not want their real address to appear on the e-mails they send. This is a type of Spam mails. We should be extra careful when dealing with these type of mails.
3-G technology refers to third generation of mobile telephony technology. It is with improved and extended facilities over the first and second generation technologies. Transfer of data in 3-G is many times faster, up to 384 kpbs compared to first and second generations.
Burundanga is the other name of the drug Scopolamine. This drug is used for criminal activities like and robbery. This drug is passed into the victim through business cards, pamphlets etc. Even if the skin touches it, it absorbs just a small quantity of the drug it has the desired effect. The drug is also administered through tablets added to the drinks. This is known as dating drug.
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