A series of free Science Lessons for 7th Grade and 8th Grade, KS3 and Checkpoint Science in preparation for GCSE and IGCSE Science.
History of Steam Engines
In 1698, Thomas Savery invented the steam engine. It produced an up-and-down movement and was used for pumping water out of mines, but it had problems with boiler explosions. By 1783, James Watt had built a much safer steam engine which could produce rotary motions. In time, these engines became very powerful and were used to drive all kinds of machines during the industrial revolution.
The Story of Wind Power
How wind turbines work?
The 5000 year history of wind technology.
Lab Project to create electricity using a hydroelectric generator
Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.
You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.
We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.