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TecHKnow News - www.techknow.org.uk

TecHKnow News - www.techknow.org.uk
Details Written by TecHKnow Published: 24 April 2014 The Course is ideal for staff using the Labexpert UK Chemical and Equipment stock control software or who would like to know more about Stock control systems. A Flyer and Application will be available from here shortly Published: 11 April 2014 The number of teachers and support staff working in England's state schools has risen to a record level of 1.3 million people. Read more here...... Published: 10 April 2014 Computer users across the globe are being strongly urged to change all their online passwords, including online banking, email and certain websites because of something called the Heartbleed Bug. This is a popular cryptographic library used to digitally scramble sensitive data as it passes to and from computer servers so that only the service provider and the intended recipients can make sense of it. No pet's names Hackers can find out a lot about you from social media Read more... Written by TecHKnowUK Published: 09 April 2014 In

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Welcome to CLEAPSS Monday 13 January 2014 Practical Physics This website is for teachers of physics in schools and colleges. It is a collection of experiments that demonstrate a wide range of physical concepts and processes. Some of the experiments can be used as starting-points for investigations or for enhancement activities. Many have links to carefully selected further reading and all include information and guidance for technicians. Physics is a practical science. Good quality, appropriate physics experiments and investigations are the key to enhanced learning, and clarification and consolidation of theory. We have published a new set of resources to support the teaching of practical science for Key Stages 3-5.

Royal Society of Chemistry, the largest organisation in Europe for advancing the chemical sciences Periodic Table IST - Institute of Science and Technology Composting Composting is a new thing for my family. I found some really great information I thought I would share. What is compost?Compost is the decomposition of plant remains and other once-living materials to make an earthy, dark, crumbly substance that is excellent for adding to houseplants or enriching garden soil. It is the way to recycle your yard and kitchen wastes, and is a critical step in reducing the volume of garbage needlessly sent to landfills for disposal. It's easy to learn how to compost. Who can compost? Composting Fundamentals AirComposting won't work without the right amount of air. anaerobic (non-air needing) microbes take over the pile. WaterIdeally, your pile should be as moist as a wrung-out sponge to fit the needs of compost microbes. FoodThere are 2 types of "food" your compost pile will need. A good mix of browns and greens is the best nutritional balance for the microbes. What to compost. What NOT to compost. Most of this information was taken from Vegweb.com.

Practical Chemistry This website is for teachers of chemistry in schools and colleges. It is a collection of experiments that demonstrate a wide range of chemical concepts and processes. Some of the experiments can be used as starting-points for investigations or for enhancement activities. Chemistry is a practical science. We have published a new set of resources to support the teaching of practical science for Key Stages 3-5.

Welcome to Norwich High School Scorched hair makes supercapacitors greener Researchers in China have used human hair to make a vital component of energy-storage devices. The discovery could lead to more efficient and environmentally-friendly replacements for traditional batteries. Waste human hair can be turned into carbon flakes that suitable for use in supercapacitor electrodes Many batteries currently in use, such as the lead–acid batteries in cars, are heavy and bulky and rely on hazardous chemicals to store electrical charge. Unfortunately, these carbon materials are usually either difficult to manufacture or derived from fossil fuels. The unique structure of hair creates carbon flakes with an ideal structure for supercapacitor electrodes Human hair has several advantages as a starting material; as well as being cheap and plentiful it naturally contains nitrogen and sulfur, which are retained in the carbon flakes and increase the conductivity of the material.

The science of compost Composting at home is fairly straightforward, but can go wrong quickly, and your nose knows when the compost container isn’t working properly. A functioning compost pile should smell faintly like warm earth. There are several causes of foul-smelling compost, and several practical solutions. Mark King is a compost expert with the division of solid waste management at the Maine Department of Environmental Protection. “Many people read how easy it is to compost and tend to think you can just toss stuff into a pile and in six to 12 months you will have compost,” King said. Though compost may seem like magic, it relies on little critters — either microbes or worms. “Microbes rely upon a balance of carbon and nitrogen. If the mix is right, the microbes produce compost, carbon dioxide and water vapor. King recommends taking the temperature of a compost pile. Richard Stehouwer is an associate professor of environmental soil science at Penn State University. Add more carbon. </li></ul>*}

Nuffield Biology This website is for teachers of biology in schools and colleges. It is a collection of experiments that demonstrate a wide range of biological concepts and processes. Experiments are placed within real-life contexts, and have links to carefully selected further reading. Biology is a practical science. We have published a new set of resources to support the teaching of practical science for Key Stages 3-5. Unfortunately, we are unable to respond to questions from teachers, technicians or students on how to use the experiments on this website. Molecule of the Month Welcome to the Molecule of the Month page! This is one of the longest running chemistry webpages on the internet. Each month since January 1996 a new molecule has been added to the list on this page. The links will take you to a page at one of the Web sites at a University Chemistry Department or commercial site in the UK, the US, or anywhere in the world, where useful (and hopefully entertaining!), information can be found about a particularly interesting molecule. If you wish to contribute a Molecule of the Month page, just email me the URL and I'll add you to the list at the next opportunity. What do I need to see the pages properly? See here for all the details of software and helper files you require. See here for a list of the awards and citations received by this page and a disclaimer. Above is a drop-down alphabetical list of all the molecules. Buy a book containing many of these molecules!

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