Thursday, 30 November 2017


Posted by Prateek Kumar

Honda has revealed a prototype for a motorcycle that can move without being controlled by the rider, and that won't fall over.
The self-stabilising technology, named Moto Riding Assist, was unveiled by Honda during a driverless demonstration at this year's Consumer Electronics Show (CES) in Las Vegas.
The Japanese company says that the technology could greatly reduce accidents in slow-moving traffic, as it lessens the possibility of falling over while the motorcycle is at rest.
Powered by an digital system, the technology disengages the handlebar from the front forks when the motorcycle is travelling at speeds below three miles-per-hour, allowing a computer to take control.
The system can also sense leaning. When it does, it swings the wheel to either side to counteract any tipping. It also adjusts the angles of the front forks, lowering the bike's centre of gravity to improve stability.
"This would be for those who want to relax a little bit and not stress out about falling over, if they're older or a little shorter in stature or the bike is heavier," explained Honda's Lee Edmunds during a demonstration. "This takes away that anxiety."
Although the motorbike is still in the prototype stage, Honda says it has the potential to cut road deaths and improve riding experience.
The technology mirror's that seen in BMW's latest concept motorcycle, which has an inability to fall over – claiming to make "accidents a thing of the past".

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Wednesday, 29 November 2017

What is nano technology

Posted by Prateek Kumar
                    WHAT IS NANOTECHNOLOGY.
Nanotechnology is science, engineering, and technology conducted at the nanoscale, which is about 1 to 100 nanometers.
Physicist Richard Feynman, the father of nanotechnology.
Nanoscience and nanotechnology are the study and application of extremely small things and can be used across all the other science fields, such as chemistry, biology, physics, materials science, and engineering.
                     HOW IT STARTED.
The ideas and concepts behind nanoscience and nanotechnology started with a talk entitled “There’s Plenty of Room at the Bottom” by physicist Richard Feynman at an American Physical Society meeting at the California Institute of Technology (CalTech) on December 29, 1959, long before the term nanotechnology was used. In his talk, Feynman described a process in which scientists would be able to manipulate and control individual atoms and molecules. Over a decade later, in his explorations of ultraprecision machining, Professor Norio Taniguchi coined the term nanotechnology. It wasn't until 1981, with the development of the scanning tunneling microscope that could "see" individual atoms, that modern nanotechnology began.
Medieval stained glass windows are an example of  how nanotechnology was used in the pre-modern era. (Courtesy: NanoBioNet)
It’s hard to imagine just how small nanotechnology is. One nanometer is a billionth of a meter, or 10-9 of a meter. Here are a few illustrative examples:
  • There are 25,400,000 nanometers in an inch
  • A sheet of newspaper is about 100,000 nanometers thick
  • On a comparative scale, if a marble were a nanometer, then one meter would be the size of the Earth
Nanoscience and nanotechnology involve the ability to see and to control individual atoms and molecules. Everything on Earth is made up of atoms—the food we eat, the clothes we wear, the buildings and houses we live in, and our own bodies.
But something as small as an atom is impossible to see with the naked eye. In fact, it’s impossible to see with the microscopes typically used in a high school science classes. The microscopes needed to see things at the nanoscale were invented relatively recently—about 30 years ago.
Just how small is “nano?” In the International System of Units, the prefix "nano" means one-billionth, or 10-9; therefore one nanometer is one-billionth of a meter. It’s difficult to imagine just how small that is, so here are some examples:
  • A sheet of paper is about 100,000 nanometers thick
  • A strand of human DNA  is 2.5 nanometers in diameter
  • There are 25,400,000 nanometers in one inch
  • A human hair is approximately 80,000- 100,000 nanometers wide
  • A single gold atom is about a third of a nanometer in diameter
  • On a comparative scale, if the diameter of a marble was one nanometer, then diameter of the Earth would be about one meter
  • One nanometer is about as long as your fingernail grows in one second
The illustration below has three visual examples of the size and the scale of nanotechnology, showing just how small things at the nanoscale actually are.

Beginning as early as the 1930s, scientists were able to see at the nanoscale using instruments such as the scanning electron microscope, the transmission electron microscope, and the field ion microscope. The most recent and notable developments in microscopy are the scanning tunneling microscope and the atomic force microscope.
The electron microscope, first developed by German engineers Ernst Ruska and Max Knoll in the 1930s, uses a particle beam of electrons to illuminate a specimen and create a highly magnified image. Electron microscopes yield much greater resolution than the older light microscopes; they can obtain magnifications of up to 1 million times, while the best light microscopes can magnify an image only about 1,500 times.
The scanning tunneling microscope (STM) is among a number of instruments that allows scientists to view and manipulate nanoscale particles, atoms, and small molecules. Its development earned its inventors, Gerd Binig and Heinrich Rohrer, the Nobel Prize in Physics in 1986.
Atomic force microscopes (AFMs) gather information by "feeling" the surface with a mechanical probe. Gerd Binig, along with Calvin Quate and Christoph Gerber, developed the first AFM in 1986.

Atomic force microscope
Atomic Force Microscope
These microscopes make use of tiny but exact movements to enable precise mechanical scanning.

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Tuesday, 28 November 2017

How much moon far away from earth

Posted by Prateek Kumar
                MOON FAR AWAY FROM EARTH.


                 You might be surprised.

Don’t be fooled! They’re actually really far apart. The moon is an average of 238,855 miles (384,400 km) away. How far away is that? That’s 30 Earths.

                   Average distance?

   Why mention the average distance? Well, the    moon is not always the same distance away    from Earth. The orbit is not a perfect circle.

   When the moon is the farthest away, it’s        252,088 miles away. That’s almost 32 Earths.    When it's closest, the moon is 225,623 miles    away. 
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Electric generator

Posted by Prateek Kumar
                 AN ELECTRIC GENERATOR.

An electric generator converts mechanical energy into electrical energy.
The principle behind the electric motor is based on Fleming’s right hand rule.
when a coil of insulated copper wire is forced to rotate inside a magnetic field then electric current is induced. The following figure shows circuit diagram of a simple AC generator. If axle X is rotated clockwise, then the length PQ moves upwards and the length RS moves downwards.
Since the lengths PQ and RS are moving in a magnetic field, a current will be induced due to electromagnetic induction. Length PQ is moving upwards and the magnetic field acts from left to right. Hence, according to Fleming’s right hand rule, the direction of induced current will be from P to Q. Similarly, the direction of induced current in the length RS will be from R to S. The direction of current in the coil is PQRS. Hence, the galvanometer shows a deflection in a particular direction. After half a rotation, length PQ starts moving down whereas length RS starts moving upward. The direction of the induced current in the coil gets reversed as SRQP. As the direction of current gets reversed after each half rotation, the produced current is called an alternating current (AC). To get a unidirectional current, instead of two slip rings, two split rings are used, as shown in the following figure. In this arrangement, brush A always remains in contact with the length of the coil that is moving up whereas brush B always remains in contact with the length that is moving down. The split rings C and D act as a commutator.

The direction of current induced in the coil will be PQRS for the first half and SRQP in the second half of the rotation. Therefore a unidirectional current is produced from the generator called DC generator
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Different creatures you ever have seen

Posted by Prateek Kumar
                  Creatures you ever have seen.

1. The Sarcastic Fringehead.

The brilliantly-named Sarcastic Fringehead lives off the pacific coast of North America. When threatened the fringehead will open their mouths wide as a method of defence - making them look a bit like The Predator - and use their teeth to attack.

2. White Peacocks.

This peacock has a genetic condition called leuicsm - similar to albinism - which reduces the pigmentation in its skin.

3. Squid with teeth.

The promachoteuthis sulcus is a rare squid which appears to have human-looking teeth - although they are actually just flaps of skin.

4. This nosy monkey.

The proboscis monkey is found in Borneo and is notable for its long nose.

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Indian classical dance form bharatnatayam

Posted by Prateek Kumar
A Bharatanatyam performer in Toronto expressing a part of a play with hand and facial gesture, in the dance's distinctive bent leg position.
Bharatanatyam or Bharathanatiyam (Tamil : "பரதநாட்டியம்"), is a major genre of Indian classical dance that originated in Tamil Nadu.[1][2][3] Traditionally, Bharatanatyam has been a solo dance that was performed exclusively by women,[4][5] and expressed Hindu religious themes and spiritual ideas, particularly of Shaivism, but also of Vaishnavism and Shaktism.
Bharatanatyam's theoretical foundations trace to the ancient Sanskrit text by Bharata MuniNatya Shastra,[6] its existence by 2nd century CE is noted in the ancient Tamil epic Silappatikaram, while temple sculptures of 6th to 9th century CE suggest it was a well refined performance art by mid 1st millennium CE.[5][8] Bharatanatyam may be the oldest classical dance tradition of India.
Bharatanatyam style is noted for its fixed upper torso, legs bent or knees flexed out combined with spectacular footwork, a sophisticated vocabulary of sign language based on gestures of hands, eyes and face muscles.[8] The dance is accompanied by music and a singer, and typically her guru is present as the director and conductor of the performance and art.[1] The dance has traditionally been a form of an interpretive narration of mythical legends and spiritual ideas from the Hindu texts.[4] The performance repertoire of Bharatanatyam, like other classical dances, includes nrita (pure dance), nritya (solo expressive dance) and natya (group dramatic dance).
Bharatanatyam remained exclusive to Hindu temples through the 19th century,[8] was banned by the colonial British government in 1910,[11] the Indian community protested against the ban and expanded it outside the temples in the 20th century.[8][11][12] Modern stage productions of Bharatanatyam have incorporated technical performances, pure dance based on non-religious ideas and fusion themes.

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Monday, 27 November 2017

Deep inside the sea water

Posted by Prateek Kumar
The deep sea or deep layer[1] is the lowest layer in the ocean, existing below the thermocline and above the seabed, at a depth of 1000 fathoms (1800 m) or more. Little or no light penetrates this part of the ocean, and most of the organisms that live there rely for subsistence on falling organic matter produced in the photic zone. For this reason, scientists once assumed that life would be sparse in the deep ocean, but virtually every probe has revealed that, on the contrary, life is abundant in the deep ocean.
From the time of Pliny until the late nineteenth century...humans believed there was no life in the deep. It took a historic expedition in the ship Challenger between 1872 and 1876 to prove Pliny wrong; its deep-sea dredges and trawls brought up living things from all depths that could be reached. Yet even in the twentieth century scientists continued to imagine that life at great depth was insubstantial, or somehow inconsequential. The eternal dark, the almost inconceivable pressure, and the extreme cold that exist below one thousand meters were, they thought, so forbidding as to have all but extinguished life. The reverse is in fact true....(Below 200 meters) lies the largest habitat on earth.

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History of cricket

Posted by Prateek Kumar
The sport of cricket has a known history beginning in the late 16th century. Having originated in south-east England, it became the country's national sport in the 18th century and has developed globally in the 19th and 20th centuries. International matches have been played since 1844 and Test cricket began, retrospectively recognised, in 1877. Cricket is the world's second most popular spectator sport after association football. Governance is by the International Cricket Council (ICC) which has over one hundred countries and territories in membership although only twelve play Test cricket.

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Different types of God's in india

Posted by Prateek Kumar
  1. Brahma, the Creator.
  2. Vishnu, the Preserver.
  3. Shiva, the Destroyer.
  4. Ganapati, the Remover of Obstacles.
  5. Avatars of Vishnu.
  6. Rama.
  7. Krishna.
  8. Saraswati, the Goddess of Learning.
  9. Lakshmi.
  10. Durga Devi.
  11. Indra, the King of Heaven and lord of the gods.
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How to impress girls with just doing some tricks

Posted by Prateek Kumar

  1. Show her that you have a great personality.
  2.  Make sure that you always look and feel great.
  3. Look for opportunities to showcase your unique abilities and resources.
  4. Do things that you love to do. 
  5. Make her feel special.
  6. Make a new first impression.

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Saturday, 25 November 2017


Posted by Prateek Kumar
the most crazy bike riding you ever seen just see and comment me .
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