There's another effect that comes in ... the Cosmic Microwave Background. This marks the first time that the Universe becomes transparent to light. The leftover photons from the Big Bang, now ...

effects, images, and designs to preview how your selection will appear. You’re also able to retain a transparent background—just leave everything the way it is, and refrain from adding a new ...

LG's transparent ... space for background visibility. It's not glass-clear (you'll still see some darkening), but it's transparent enough to create that futuristic floating image effect.

Nothing special about that, right? OK, but what if you could shine a second light on the substance and make it transparent for the first light field? That would be a bit strange, wouldn't it?