microscopy!<br><br>BBC Science - How to: make a microscope from a webcam • http://tinyurl.com/lyhtzku <br> <br>Create a high-powered microscope from a cheap webcam by following Mark’s simple step-by-step instructions. Because your microscope is connected to your computer, you can save and share your images easily.<br><br>#DIY #hacking #microscope #webcam #science #torch-is-UK-English-for-flashlight #awesomeness <br><sub> - via Diaspora* Publisher -</sub>
• “I prefer to think of myself as a process that wants to be really persistent.”
/t/ - Test
/t/ - Test
/t/ - Test
/t/ - Test
/t/ - Test
Quantum physics is a branch of science that deals with discrete, indivisible units of energy called quanta as described by the Quantum Theory. There are five main ideas represented in Quantum Theory:
- Energy is not continuous, but comes in small but discrete units.
- The elementary particles behave both like particles and like waves.
- The movement of these particles is inherently random.
- It is physically impossible to know both the position and the momentum of a particle at the same time. The more precisely one is known, the less precise the measurement of the other is
- The atomic world is nothing like the world we live in.
While at a glance this may seem like just another strange theory, it contains many clues as to the fundamental nature of the universe and is more important then even relativity in the grand scheme of things (if any one thing at that level could be said to be more important then anything else). Furthermore, it describes the nature of the universe as being much different then the world we see. As Niels Bohr said, “Anyone who is not shocked by quantum theory has not understood it.”
All floundering and spotty internet access makes a blog slow down.
Late, but still relevant.
Higgs boson-like particle discovery claimed at LHC
Cern scientists reporting from the Large Hadron Collider (LHC) have claimed the discovery of a new particle consistent with the Higgs boson.
The particle has been the subject of a 45-year hunt to explain how matter attains its mass.
Both of the Higgs boson-hunting experiments at the LHC see a level of certainty in their data worthy of a “discovery”.
More work will be needed to be certain that what they see is a Higgs, however.
Proposed experiment would prove that quantum jumps are not objective events
The famous physicist Niels Bohr first conceived of the notion of quantum jumps, or quantum leaps, in 1913. Bohr understood quantum jumps as objective events in which an atom emits or absorbs a photon, causing an electron to jump from one energy level – or quantum state – to another inside the atom. But a few decades later, when physicists began to understand how the act of measuring can affect the result in quantum mechanics, the assumed objectivity of quantum jumps required a second look.
Then in the early 1990s, physicists developed quantum trajectory theory, showing that quantum jumps are not caused by the emission of a photon, but by the detection of a photon. If an emitted photon is not detected, then there is no quantum jump. In other words, quantum jumps are detector-dependent, which is in marked contrast to Bohr’s objective emission events.
Despite the wide acceptance of the assertion that there can be no detector-independent quantum jumps, no experiment has ever been performed to rigorously test this claim.
Now in a new study, physicists Howard M. Wiseman at Griffith University in Queensland, Australia, and Jay M. Gambetta at the IBM T.J. Watson Research Center in Yorktown Heights, New York, have proposed experimental tests to prove that all quantum jumps must be detector-dependent. Their work is published in a recent issue of Physical Review Letters.
“Our work relates to something everyone has heard of (quantum jumps) but says that their fundamental nature has still not been established experimentally,” Wiseman told Phys.org. “By proposing actual experiments, it gives experimentalists a real motivation to try to increase their collection and detection efficiency.”
The proposed tests would rule out not just certain specific detector-independent models of quantum jumps, but all models that could conceivably describe quantum jumps as detector-independent.
(more at phys.org)
Note to self: Feel free to talk mad smack on your high school, beginning now.
Late one night two years ago, Adam Munich found himself talking with two new acquaintances in a chatroom. One, a Pakistani guy, was complaining about rolling electricity blackouts in his country. The other had broken his leg in a motocross accident in Mexico and said his local hospital couldn’t find a working x-ray machine. The two situations fused in Munich’s mind; he wondered if a cheap, reliable, battery-powered x-ray machine existed—something that could be used in remote areas and function without being plugged in during blackouts. After discovering that the answer was no, he spent two years building one himself out of Nixie tubes, old art suitcases, chainsaw oil, and electronics from across the globe. It was an incredibly ambitious project for anyone, let alone a 15-year-old.
(via You Built What?!: A Portable X-Ray Machine)
Damn, this has been a decent week for the sciences:
Members of the CMS collaboration announced the experiment’s first discovery of a new particle today.
In a paper submitted to Physical Review Letters, the CMS collaboration described the first observation of an excited, neutral Xi_b baryon, a particle made up of three quarks, including one beauty quark.
The new baryon is one of many particles made up of quarks predicted by the theory of quantum chromodynamics.
(from CMS collaboration discovers its first new particle)