Building an AM Radio Receiver
Building a Radio at Home I have built a transistor radio. It’s quite a simple circuit. The parts you need are: An induction Coil An...
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ALEX'S THEME OF INVESTIGATION
I am Alex! I am currently in year 5 learning about all sorts of interesting things. I love science and I want to share my passion for investigation with you.
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Radio Waves - Modulation and Basic Principles
How is Radio Useful? Radio waves transmit music, pictures, conversations and data invisibly through the air. Also, lots of technologies...
Radio Waves
Electromagnetic (EM) energy is all around us. Electromagnetic waves can travel a long distance. Waves have three main aspects – wave...
Global Positioning System
The Global Positioning System (GPS) is a network of 29 satellites orbiting the Earth at an altitude of ~12,400 miles. GPS was originally...
Einsten's Theory of Relativity
Today I am excited to tell you what I have learnt about Albert Einstein and his Theory of Relativity Who was Albert Einstein? Albert...
Morse Code
Morse Code is a method of sending messages using dots and dashes. It was named after Samuel Morse who helped invent it. Messages are sent...
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