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| 關鍵字 | Incredible Inventions Science Technology STEAM Inventions P5-P6 |
Before magnifying glasses, how did people look at things big size? Through bowls of water, of course! Then microscopes and telescopes came along... Follow the trail of inventions and devices that have enabled us to see everything from stars to cells, and what's totally hidden from sight. Discover how
- Thomas Edison tested 3,000 light bulb designs before finding 'the one'
- the camera began life as a darkened room (with a hole in the wall)
- movie-goers found Cinerama so exciting, they screamed
- MRI scanners 'see' cancer tumours
- lasers scan cut through steel
and so much more, all revealed in lively text and humorous pictures. There are also crazy inventions (spectacles for horse, why not?) and off-beam predictions - some people thought electric light would never catch on...!
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