Tiny rulers to measure nanoscale structures

Tiny rulers to measure nanoscale structures




With the advent of nanometer-sized machines, there is considerable demand for stable, precise tools to measure absolute distances and distance changes. One way to do this is with a plasmon ruler. In physics jargon, a "plasmon" is the quasiparticle resulting from the quantization of plasma oscillation; it's essentially the collective oscillations of

Sufism and Quantum Physics (by Ibrahim B. Syed)

There are parallels in Sufism and in quantum theory. A view of the world is very similar to the views, held by Sufis and modern physicists. In contrast to the mechanistic world view of the Westerners, for the Sufis all things and events perceived by the senses are interrelated, connected, and are but different aspects or manifestations of the same ultimate reality. For Sufis “Enlightenment” is an

A New Astronomical Quranic Method for The Determination Of The Greatest Speed C

by Dr. Mansour Hassab-Elnaby



Abstract: The greatest speed C, denoting the velocity of light in vacuum, is hinted at in two glorious Quranic verses relating this fundamental universal contant C with the motion of the Earth-Moon system. A new relativistic interpretation of this Quranic relation gives C=299792.5 km/s in an extremely marvellous agreement with the accepted international value. This

List of unsolved problems in physics

Tulisan ini saya ambil dari www.en.wikipedia.org. Namun saya lagi males menerjemahkannya... so terjemahkan sendiri ya...! Semoga bermanfaat...!

The following problems are either fundamental theoretical problems, or theoretical ideas which lack experimental evidence and are in search of one, or both, as most of them are. Some of these problems are strongly interrelated. For example, extra

Umbrella Lights The Way

Payung LightDrops tidak seperti payung pada umumnya, ada sesuatu yang “lebih” jika dipergunakan di malam hari. Sewaktu air hujan menyentuh payung tersebut, energi potensial dari air hujan mengaktifkan membran konduktif bernama PDVF yang bertindak sebagai baterai lampu LED pada payung tersebut. Semakin deras hujannya, semakin terang cahaya yang dihasilkan untuk membantu menerangi jalan anda.

Pengukuran Torsi dan Aplikasi

 

Figure 6-4: Torque on a Rotating Shaft
Torque Measurement
Torque is measured by either sensing the actual shaft deflection caused by a twisting force, or by detecting the effects of this deflection. The surface of a shaft under torque will experience compression and tension, as shown in Figure 6-4. To measure torque, strain gage elements usually are mounted in pairs on the

Water Found on the Moon

By Andrea ThompsonSenior Writerposted: 23 September 200906:17 pm ET
Editor's Note: See also this newer story: 'Significant Amount' of Water Found on Moon, published Nov. 13, 2009.The story below, about scant amounts of water found across the lunar surface, was published in September, 2009:
This story was updated at 10:49 p.m. EDT on the date of initial publication.
Since man first touched the

Xbox speeds up research results

Part of Dr Scarle's research was done on an Xbox 360
Researchers have harnessed the powerful silicon chips used in the Xbox 360 console to solve scientific conundrums.Academics at the University of Warwick believe they are the first to use the processors as a cheap way to conduct "parallel processing".
Parallel computing is where a number of processors are run in tandem, allowing a system

Laser fusion test results raise energy hopes

By Jason Palmer
Science and technology reporter, BBC News

NIF target chamber (LLNL)
The experiment focuses 192 high-power laser beams to a tiny target

A major hurdle to producing fusion energy using lasers has been swept aside, results in a new report show.

The controlled fusion of atoms - creating conditions like those in our Sun - has long been touted as a possible revolutionary energy

Physics reference Constants

Terkadang kita kesulitan dalam mengingat konstanta-konstanta dalam fisika. Oleh karena itu, saya mencoba menyediakannya kepada anda.



quantitysymbolvalue
acceleration due to gravity g 9.806 65 m/s2
age of Universe t0 15(5) Gy
atomic mass unit, unified u 931.494 32(28) MeV/c2 =
1.660 540 2(10) x 10-27 kg
astronomical unit au 1.495 978 706 6(2) x 1011 m
Avogadro constant NA 6.022 136 7

Nuclear fusion is the future

By Roger Highfield

James Hansen Photo: PA 'It's time to stop waffling so much and say that the evidence is pretty strong that the greenhouse effect is here." With that warning to the US Congress in June 1988, the Nasa climatologist James Hansen focused the minds of politicians on a danger that, until then, many of them had treated with scepticism.


A few days later

History of Physics and Astronomy

From schoolphysics.co.uk
Big Bang to 0 ADThis section shows the important events in Physics and Astronomy from the Big Bang until 0 AD. The names of people are highlighted in blue, important people are in bold blue.

1.4x1010 years ago Big Bang
300000 years later Universe becomes dark
A billion years later Star – first one appears
4.5x109 years ago Origin of the Earth
500 000 years ago Human

Timeline of atomic and subatomic physics

From Wikipedia, the free encyclopedia
Early beginnings585 BC Buddha states that there were indivisible particles of mind and matter which vibrated 3 trillion times in the blink of an eye which he calls "kalapas"
440 BC Democritus speculates about fundamental indivisible particles—calls them "atoms"
The beginning of chemistry1766 Henry Cavendish discovers and studies hydrogen
1778 Carl Scheele and

Timeline of nuclear fusion

From Wikipedia, the free encyclopediaTimeline of significant events in the study and use of nuclear fusion:
1929 - Atkinson and Houtermans used the measured masses of low mass elements and applied Einstein's discovery that E=mc2 to predict that large amounts of energy could be released by fusing small nuclei together [1].
1932 - Mark Oliphant discovered helium 3 and tritium, and that heavy