As the ray passes from the air to glass, it slows down. Not that you would notice, as the light is still travelling very fast (approximately 200,000 km/s).

Accessibility Commitment

We are committed to making our presentations accessible to everyone. Our platform supports adjustable text size, color schemes, keyboard navigation, and screen reader compatibility.

Keyboard Shortcuts

→ or Space
Next slide
← or Backspace
Previous slide
Home
First slide
End
Last slide
F
Toggle fullscreen
S
Open settings
N
Play/pause narration
Esc
Close dialog or exit fullscreen

Accessibility Features

  • Text resizing and customizable display settings
  • High contrast color themes
  • Alternative text for images
  • Keyboard navigation through all content
  • Screen reader compatibility with ARIA landmarks
  • Narration for text content

If you encounter any accessibility barriers or have suggestions for improvement, please contact us:

Email: hello@developingexperts.com