|
Home / News / Tags / wave
|
|
Theory says that black holes are objects of extreme mass and density, having powerful gravitational fields able to warp space and time, and surrounded by a boundary called the event horizon, beyond which matter and energy cannot escape the gravitational pull and will ultimately fall in the singularity. In addition to... |
13 May 2008
02:52 GMT |
 |
|
This is the world's oldest audio recording, from an era when today's recording technology seemed fairy tales. American specialists have found and listened an 1860 recording of a folk song. This pre-dated by 17 years the phonograph invented by Thomas Edison, which recorded him singing a children's song ... |
28 March 2008
08:28 GMT |
|
|
This is the first time when an electrical soliton wave was found in space and measured by the Cluster mission. The so-called soliton waves are a special type of wave which travel great distances without changing shape. The term soliton wave was first coined by John Scott Russell in 1834, while observing that at the b... |
19 March 2008
11:59 GMT |
|
|
Until a machine will read your thoughts, a first step has been made: New Scientists signals the development of a neckband that decodes your nerve signals into speech. For the first time, you could make a phone call without opening your mouth.A trained individual can transmit motor messages to its vocal cords without ... |
19 March 2008
06:12 GMT |
|
|
The electron has been a theoretical thing for a long time. Like something you know for sure it exists, but you cannot show it to the others. But now you can. In a research published in the "Physical Review Letters," researchers have filmed an electron for the first time ever, moving on a light wave after just having ... |
25 February 2008
02:38 GMT |
|
|
A healthy ear reacts to the sounds it receives, emitting soft sounds in response. These sounds can be detected by sensitive microphones, which enable doctors check newborns' hearing, as a deaf ear doesn't reflect the sounds. A new study published in the "Proceedings of the National Academy of Sciences" and... |
13 February 2008
02:46 GMT |
|
|
Blue whales may have 2,4 m (8 feet) long penises, but that's relatively short: it is like a human having a 10 cm penis, as the blue whale can reach 33 m (100 feet) body length. But barnacles, small crustaceans looking like small shells fixed on rocks or man made structures (or sometimes even on whales!) with a m... |
7 February 2008
14:06 GMT |
|
|
The radio waves are a form of electromagnetic radiation. This theory was first emitted by the British James Clark Maxwell in 1864 and later confirmed by the German Heinrich Hertz in 1880. In 1887, Hertz showed in public the transmission and reception of radio waves. His emitter produced an electric current discharged... |
9 January 2008
06:25 GMT |
|
|
1.Movement or chocking of the objects produce sounds. A sound is the vibration of elastic waves through different environments (solid, liquid, gaseous), with a frequency between 16 Hz to 20,000 Hz (20 kHz) (which is detected by the human ear). 2.Human ear has three parts: external, median and internal. The external e... |
27 December 2007
16:56 GMT |
|
|
Some achive information from an Australian radio telescope has come with a surprising discovery: a strong, short-lived burst of radio waves betraying a new class of astronomical phenomenon. "This burst appears to have originated from the distant Universe and may have been produced by an exotic event such as the colli... |
1 October 2007
05:59 GMT |
|
|
The 2004 tsunami killed 230,000 people and left half a million homeless in 12 countries. But a new one could be four times more disastrous, killing over a million people in South Asia's Bay of Bengal, but its date cannot be precisely predicted: it could strike Myanmar and Bangladesh in the next few decades or in... |
6 September 2007
05:11 GMT |
|
|
Astronomers have busted for the first time in the Sun's corona the elusive oscillations called Alfvén waves, carrying energy outward from the Sun. This could explain the basic behavior of solar magnetic fields and Sun's action on Earth and its whole system."Alfvén waves can provide us with a window into pro... |
31 August 2007
07:14 GMT |
|
|
The power of gravity leads to the formation of galaxies, stars and black holes but at the same time is like a chain binding us to the ground. Despite its infinite spread, gravity is the least known and weakest of all forces found in the universe. Moreover, researchers can't assess it in the lab as easily as they... |
13 August 2007
05:12 GMT |
|
|
Among the many keyboards and mice manufacturers in the world, Logitech stands up and very near the top. I say very near the top and not just on top because sometimes smaller companies like Razer can knock you off your feet with their products. But back at Logitech, they use a nice design for all their products and al... |
26 July 2007
05:55 GMT |
|
|
Scientists are working on a new type of nanogenerator that could draw the necessary energy from flowing blood in the human body, by using the beating heart and pulsating blood vessels. Once completed, this new cellular engine could find various applications, even beyond medicine.Zhong Lin Wang and colleagues at the ... |
21 July 2007
06:46 GMT |
|
|
Earthquakes are some of the nature's most destructive forces and the main problem about them is that we can't really predict when and where they are going to occur next. Of course, there are fault lines and areas where tectonic activity has been recorded for hundreds of years, but we can't say for sur... |
21 July 2007
04:16 GMT |
|
|
An atom laser is similar to an optical one and is in fact a coherent beam of atoms that behaves like a wave. Though a relatively recent discovery, still in its 'infancy', this technology could soon have many practical applications, like in extremely precise measurements."When doing precise measurements of ... |
19 July 2007
09:44 GMT |
|
|
Einstein's famous quote: "Two things are infinite: the universe and human stupidity; and I'm not sure about the universe" is not exactly accurate. He wasn't sure of another thing, the existence of the gravitational waves.In fact, he repeatedly changed his mind regarding the existence of this phenomeno... |
18 July 2007
08:21 GMT |
|
|
Light is a form of electromagnetic radiation that exists all around us, in nature as well as in man-made applications. It's the manipulation of these light waves that made possible some of the most widely used technologies of today, from cameras to microwave ovens and medical imaging machines.A new device, deve... |
13 July 2007
04:17 GMT |
|
|
That's exactly what a team of scientists observed in an experiment and then transformed into a practical device. The gadget can turn heat into sound and then into electricity and is very promising as an effective method of transforming waste heat into electricity, harnessing solar energy and cooling computers a... |
4 June 2007
03:38 GMT |
|
|
Atomic spectroscopy is the determination of elemental composition by its electromagnetic or mass spectrum, based on the interactions of light and matter, and a widely used technique with diverse applications.Holger Schmidt, associate professor of electrical engineering, at the University of California, Santa Cruz, an... |
2 June 2007
06:02 GMT |
|
|
Elephants are not only the largest land mammals, but also the possessors of some amazing abilities, like that of infrasound communication over large areas. We cannot hear them, but elephants located tens of kilometers away can. In 2004, the behavioral ecologist Caitlin O'Connell-Rodwell of Stanford University in... |
1 June 2007
06:12 GMT |
|
|
The quantum world is full of surprises, unexpected behaviors and facts that seem to contradict the logic of the macroscopic world. A new method of studying atom interferometry has observed such weird behaviors of atoms, recreating a famous experiment originally done with light while also making the atoms do things t... |
28 May 2007
03:36 GMT |
|
|
A gravity wave is a fluctuation, or a ripple, in the curvature of space-time, which travels as a wave, outward from a moving object or system of objects. For example, an accelerating mass loses its entire energy when exceeding certain levels, which creates gravitational module in the form of a ripple.Scientists have... |
15 May 2007
07:01 GMT |
|
|
Everybody knows the famous robot dance. Well, it seems that the next generation of bridges will dance on a different beat, the earthquake dance. A group of researchers made up mostly of earthquake engineers at the University at Buffalo and MCEER, funded by the U.S. Federal Highway Administration, have reached the c... |
10 May 2007
15:31 GMT |
|
|
Present information technologies rely on electrons for carrying process data and information, but, as silicon technology is reaching its physical limits, researchers are looking for alternatives. Another emerging field is "spintronics", that deals with the use of the "spin" of an electron for storing, processing an... |
28 April 2007
05:50 GMT |
|
|
The last one has just occurred in the Solomon Islands, taking with it at least 20 victims. But what's a tsunami?Tsunami ("harbor wave" in Japanese) represents a series of great sea waves provoked by an underwater earthquake, landslide, or volcanic eruption and sometimes by the collision of a giant meteor with th... |
3 April 2007
03:31 GMT |
|
|
Astronomers have managed to get a picture of more than a thousand supermassive black holes, a complex image of a crucial time when these monster space objects are growing, and offers clues about the environments in which they occur.This achievement was made employing NASA's Chandra X-ray Observatory, the Spitzer... |
14 March 2007
06:13 GMT |
|
|
For 80 years, the scientists have supported Niels Bohr's opinions stating that in any experiment, light shows only one aspect at a time, either a wave or a particle. "Einstein was deeply troubled by that principle, since he could not accept that any external measurement would prevent light to reveal its full dua... |
13 March 2007
08:10 GMT |
|
|
|
|
