background preloader

Quantum mechanics 101: Demystifying tough physics in 4 easy lessons

Quantum mechanics 101: Demystifying tough physics in 4 easy lessons
Ready to level up your working knowledge of quantum mechanics? Check out these four TED-Ed Lessons written by Chad Orzel, Associate Professor in the Department of Physics and Astronomy at Union College and author of How to Teach Quantum Physics to Your Dog. 1. Particles and waves: The central mystery of quantum mechanics One of the most amazing facts in physics is that everything in the universe, from light to electrons to atoms, behaves like both a particle and a wave at the same time. But how did physicists arrive at this mind-boggling conclusion? 2. Austrian physicist Erwin Schrödinger, one of the founders of quantum mechanics, posed this famous question: If you put a cat in a sealed box with a device that has a 50% chance of killing the cat in the next hour, what will be the state of the cat when that time is up? 3. When you think about Einstein and physics, E=mc^2 is probably the first thing that comes to mind. 4. Related:  ciencia

index Australopithecus deyiremeda is the name of the new fossil hominid species discovered in the site of Woranso-Mille —in the central region of Afar, in Ethiopia. The discovery, described in the international scientific journal Nature, takes to another level the on-going debate on early hominid origin and evolution in Africa. The scientific team lead by Professor Haile-Selassie has found several fossil remains (upper and lower jaws and a collection of teeth) in the sites of Burtele and Wayteleyta, in Woranso-Mille, in the central region of Afar, about 50 kilometres north of Hadar and 520 kilometres northeast of the capital Addis Ababa. Experts have assigned these 3.3 – 3.5 million-year-old fossil specimens to the new species Australopithecus deyiremeda. Lucy was not the only australopithecus in the Afar region Map of Ethiopia showing the Afar Region. Scientists have long argued that A. afarensis was the only pre-human species which lived in the region between 3 and 4 million years ago.

21 GIFs That Explain Mathematical Concepts “Let's face it; by and large math is not easy, but that's what makes it so rewarding when you conquer a problem, and reach new heights of understanding.” Danica McKellar As we usher in the start of a new school year, it’s time to hit the ground running in your classes! Math can be pretty tough, but since it is the language in which scientists interpret the Universe, there’s really no getting around learning it. Ellipse: Via: giphy Solving Pascal triangles: Via: Hersfold via Wikimedia Commons Use FOIL to easily multiply binomials: Via: mathcaptain Here’s how you solve logarithms: Via: imgur Use this trick so you don’t get mixed up when doing matrix transpositions: Via: Wikimedia Commons What the Pythagorean Theorem is really trying to show you: Via: giphy Exterior angles of polygons will ALWAYS add up to 360 degrees: Via: math.stackexchange If you’re studying trig, you better get pretty comfortable with circles. Via: imgur Via: Wikimedia Commons This shows the same thing, but a bit more simply: Via: imgur

Getting Started with LabVIEW Interface for Arduino [LabVIEW Hacker] LIFA has been replaced with LINX. All new users should start with LINX and all current LIFA users should migrate to LINX. The LabVIEW Interface for Arduino (LIFA) allows users to control sensors and acquire data through an Arduino microcontroller using the graphical programming environment LabVIEW. Prerequisites Hardware Software Procedure Summary This getting started guide described the process of setting up the hardware and software to use the LabVIEW Interface for Arduino. Suggested Reading

La inmunoterapia contra el cáncer de piel que tiene un éxito nunca antes visto - BBC Mundo Beautiful Mathematical GIFs Will Mesmerize You Digital artist and physics PhD student Dave Whyte is dazzling our computer screens with his mesmerizing GIFs that are the perfect marriage of mathematics and art. And we can’t stop watching them. Whyte shares his brilliant, procrastination-fueling creations on an almost daily basis on his Tumblr account, Bees & Bombs. Whyte studies the physics of foam and told Colossal that his first geometric GIFs riffed on computational modules that he was exploring as an undergraduate student. To create his eye catching animations, Whyte uses a programming language called Processing. [Via Colossal, io9 and Bees & Bombs]

Mecatrónica | Oferta académica | ITESCAM Perfil del Egresado Es el Profesional especializado que aplica metodología científica y mediante el empleo de tecnología de punta, diseña soluciones a problemas complejos, en ámbitos relacionados con la mecánica de precisión, los sistemas electrónicos y las computadoras. Además, es capaz de diseñar y operar procesos de automatización en diversos tipos de empresas e industrias. Campo de Trabajo Es muy vasto ya que abarca desde la solución de problemas e implementación de mejoras en un sencillo proceso productivo hasta la total automatización y control de grandes líneas de producción. La Ingeniería en Mecatrónica es una base muy sólida sobre la cual pueden construirse especializaciones y postgrados que capaciten al Ingeniero para desenvolverse exitosamente en el campo de la investigación, desarrollando tecnología y generando conocimiento prácticamente en cualquier área.

History El hallazgo podría sentar las primeras pruebas sobre la existencia de 'físicas exóticas', absolutamente desconocidas para la ciencia actual. Un equipo internacional de astrónomos descubrió un 'súper-vacío' de 1.800 millones de años luz de diámetro, mientras se encontraba estudiando un área gigantesca del espacio, demasiado fría y raramente vacía. Esta región está situada relativamente cerca de nutro sistema solar, a unos 3 mil millones de años luz y, según el científico István Szapudi, a la cabeza del equipo, "se trata de la mayor estructura individual jamás identificada por la humanidad". Este 'punto frío' fue descubierto en la zona de 'súper-vacío', hace unos 10 años. El hallazgo, por entonces, asombró a la comunidad científica, dado que la aceptada teoría del Big Bang no prevé zonas frías de semejantes dimensiones. Fuente: The Guardian Imagen: NASA

Visually stunning math concepts which are easy to explain Electronics Lab - Open Source Hardware Electronic Projects Physicists observe virtually frictionless motion at the nanoscale For the first time, researchers in the US have made friction almost completely vanish between two surfaces at the nanoscale. The discovery paves the way for engineering surfaces that can slide past each other with virtually no resistance, and could hugely advance the development of nanomachines. Ordinarily, friction exists wherever two surfaces meet - whether that’s car tyres on a road or a protein flowing through a blood stream. But there’s a phenomenon known as ‘superlubricity’ where friction almost entirely disappears, and this is what scientists have now managed to recreate by carefully tuning the spacing of individual atoms on a surface. The most direct application of this research is the creation of longer-lasting nanomachines made out of single molecules, which currently are worn down by friction far more rapidly than larger objects because they have so few atoms to lose. The possibilities are pretty exciting.

Related: