1,244 search results
Electrical Discharge Wire Cutting (EDWC) and Sawing (EDS)
Science, Maths & Technology

Electrical Discharge Wire Cutting (EDWC) and Sawing (EDS)

...simple. Workpieces up to 1 tonne are possible on some machines. Materials: Any electrically conducting material, irrespective of hardness – even diamond! Tools for EDM can be cut without distortion and the need for subsequent heat treatment. A shallow “recast” layer and “heat affected zone” (HAZ) are formed and, although less than for EDM, may still have to be...
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Article 5 mins
Hot forging (open die)
Science, Maths & Technology

Hot forging (open die)

...simple contoured dies...Two types of hammer used for open die forging: [Diagrams to demonstrate Hot Forging (open die) - see article] Open die forging between flat dies: [Diagrams to demonstrate Hot Forging (open die) - see article] Open die forging between flat narrow dies: [Diagrams to demonstrate Hot Forging (open die) - see article] Manufacture:​ There are a wide...
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Article 5 mins
The how and why of podcasting: connection, creation and conversation!
Education & Development

The how and why of podcasting: connection, creation and conversation!

...simple recording device, with good sound quality (e.g. using a recording app on your mobile device). They are very adaptable; and they lend themselves to guest contributors too, if that suits your topic. Don’t forget to shout about your new podcast on platforms your audiences already frequent, so that they know it’s there! Conversation [Woman wearing headphones and...
View video The how and why of podcasting: connection, creation and conversation!
Video 10 mins
Why school is bad for us - an inaugural lecture by Professor Jonathan Rix
Miscellaneous

Why school is bad for us - an inaugural lecture by Professor Jonathan Rix

...simple ways to release teachers from these shackles. In his lecture, Professor Rix will draw on everyday examples from around the world to show how a negative schooling experience still dominates the lives of many. "Education as we know it, is about dividing us up; the subjects we study, the classes we study with, the practices that teach us" Jonathan Rix, Professor of...
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Article 5 mins
Make a bird house
Nature & Environment

Make a bird house

...simple one to the design shown. A single plank of wood 15 x 130 cm is sufficient. If using plywood, only use exterior grade or marine ply. Use wood preservative (water-based) on the outside only and keep it away from the edges of the entrance hole where the birds will often peck at the wood. A piece of roofing felt on the sloping roof will help to keep the wood dry. 1....
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Activity 10 mins
Hacking under your skin?
Digital & Computing

Hacking under your skin?

...simple and requires no specialised equipment. Over time, the team were able to reverse engineer the format of individual commands and found that they were neither encrypted against eavesdropping, nor were commands correctly authenticated to protect against improper use that could cause harm to the patient. After discovering these problems, the team went on to suggest ways...
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Article 5 mins
Light: Wave-particle duality
Science, Maths & Technology

Light: Wave-particle duality

...simple equation: wavelength x frequency = speed of light, about 300,000 km/s. This recognition of light as a wave phenomenon had in fact overturned two centuries of belief, dating back to work by Isaac Newton, that light was composed of a stream of particles. However, light had one more surprise in store. The theory of quantum physics was derived in the early 1900s,...
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Article 10 mins
Business Bursts: Failure
Health, Sports & Psychology

Business Bursts: Failure

...simple lack of cashflow, that the firm doesn’t have enough money to pay ongoing bills or wages, and we've seen quite a lot of that with the credit crunch, where it’s been more difficult for firms to, or more expensive for them, to acquire cashflow. Another factor in business failure is where the organisation has failed to secure a market, so it might have a good idea...
View video Business Bursts: Failure
Video 5 mins