Real Science | Topical science for schools Fundación Pedro Meyer American Elements: AE Quantum Dots Supplier and Technical Inform (click on an element to view our products) Safety , research , uses and properties for AE Quantum Dots™ are discussed below. is a manufacturer and supplier specializing in producing quantum dots from several semiconductor materials, including Cadmium Telluride (CdTe) , Cadmium Selenide/Zinc Sulfide (CdSe/ZnS ), Lead Selenide (PbSe) and Zinc Cadmium Selenide/Zinc Sulfide (ZnCdSe/ZnS) nanoparticles with well-defined peak emission frequencies between approximately 470 to 730 nm wavelengths. Quantum dots are nanoparticles of certain semiconductor crystals with the novel property of having an extremely narrow emission spectrum (Gaussian Distribution) that is directly proportional to the particle's size. The smaller the particle the more its emission is blue shifted and conversely the larger the particle size, the more its emission is red shifted, thus allowing for the emission of the complete light spectra of color from the same material. Aluminum: Al Scandium-aluminum alloy: Sc-Al Arsenic: As
Stem Careers royalsociety This scheme helps schools to run exciting and innovative projects in partnership with a professional scientist or engineer. "I would strongly recommend all schools to get involved in the Partnership Grants scheme." - Carl Williams, Markland Hill CP School, Bolton Do you have a great idea for bringing science to life in schools? The Partnership Grants scheme provides grants of up to £3,000 for science projects run at a primary or secondary school or college in partnership with a professional scientist or engineer. Since 2000, the scheme has awarded over £1.3 million to 745 schools and colleges, and has ignited enthusiasm for science among young people across the UK. Find out all the information you need to apply to the scheme. Benefits for teachers and schools Introduction to the Partnership Grants scheme (2 mins, requires Flash Player). A Partnership Grant can allow schools to buy specialist scientific equipment, to be used not only for the initial project but for years to come.
Clear Science! "In a first for laser-driven fusion, scientists at a US lab say they have reached a key milestone called fuel gain: they are producing more energy than the fuel absorbed to start the reaction." Laser-sparked fusion power passes key milestone | New Scientist Okay, okay, okay, okay, guys. Scientists at the National Ignition Facility have taken the first itty bitty baby steps towards fusion and I’m having trouble containing my excitement. First of all, they’re using 192 laser beams, which are pointed at a gold chamber that converts the lasers into X-ray pulses, which then squeeze a small fuel pellet and make it implode and undergo fusion. Secondly, the lead researcher is named Omar Hurricane. And then there’s what it actually means. Even so, this is a hugely significant tiny step forward toward recreating the clean energy production that happens in the heart of stars. (via chels) Essentially, solar power is fusion, though. (via chels)
Genetic Algorithm For Hello World This article works through the creation of a ‘toy’ genetic algorithm which starts with a few hundred random strings and evolves towards the phrase “Hello World!”. It’s a toy example because we know in advance what the optimum solution is – the phrase “Hello World!” – but it provides a nice simple introduction to evolutionary algorithms. I have written this article primarily for developers who have a casual interest in machine learning. In short, a typical genetic algorithm works like this: Represent solutions as binary strings (called chromosomes). In more detail, genetic algorithms are comprised of the following concepts: Now let’s work through a specific problem – the genetic Hello World algorithm: Constructing The Chromosome “The human genome itself is just a parts list” – Eric Lander Exactly how you encode solutions will depend heavily on your problem. The Fitness Function In order to know which chromosomes are better solutions, we need a way to judge them. The Population Elitism: Mutation
TRN How It Works: Quantum Computing: Qubits Qubits use properties of one of four types of quantum particles: photons, electrons, atoms and ions. Photons do not interact with each other very well but they travel easily from one place to another, which makes them appropriate for transmitting quantum information. Electrons, atoms and ions don't travel well but readily interact, which makes them appropriate for storing and processing quantum information. Photons The electric field of unpolarized photons vibrates in a plane perpendicular to the photon’s course. Photons can be controlled by mirrors and polarizing filters, which block all photons but those with one particular polarization orientation. The phase, or wave cycle, of photons and their times of arrival can also be used as qubits. Electrons Electrons are oriented in one of two directions, spin up and spin down, which are akin to the two poles of a magnet. Atoms and ions Atoms and ions are more complicated objects than electrons and have several ways of representing information.
Science Careers Information on science-related jobs. Below is a chart listing many of the main science-related jobs with a rough coding on the likelihood of a career from the particular degree subject. See also www.prospects.ac.uk/links/Occupations where you will find detailed job descriptions of many of the above jobs. What can I do with my degree in ......? Careers Outside Science Science graduates are attractive to many employers because of their personal transferable skills rather than the specific skills that they have gained during their degree course. Jobs using these skills include: COMPUTING requires very similar logical thinking skills to those required in science. See www.kent.ac.uk/careers/workin.htm for information on a wide range of other careers open to you. A chart of jobs that can be entered with any degree subject is at www.kent.ac.uk/careers/careermap.htm Many of the following organisations may sometimes offer placements. You will need a good science CV and covering letter to go with it.
About STEM 11-14 projects Benefits to pupils of STEM cross-curricular projects include: greater motivation making links between subjects, enhancing learning development of learning skills the opportunity to tackle authentic, complex problems over an extended period of time. Nuffield STEM projects challenge pupils to development their own ideas. To help them with this, pupils are explicitly taught a set of skills.
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