0 विचारों · 12/05/24
DIY Slide Projector for Science Project (Tutorial)
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03/09/24
This video shows the steps making a simple slide projector. Why is the image upside down?
This is because the projector uses a convex lens. The image is inverted, so the slides have to be put in upside down to give an image on the screen which is the right way up.
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0 विचारों · 12/05/24
