What does VR stand for?
AnswerVirtual reality
Virtual reality places the user inside a computer-generated environment.
Tech · Facts & stats
Reality facts & stats
7 fact-checked facts about virtual reality and perception, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
What does AR stand for?
AnswerAugmented reality
Augmented reality overlays digital content onto a view of the real world.
Going deeper
VR motion sickness is mainly caused by a mismatch between vision and which sense?
AnswerBalance, sensed by the inner ear
When the eyes see motion but the inner ear senses none, the conflict can cause nausea.
In VR tracking, what does '6DoF' stand for?
AnswerSix degrees of freedom
6DoF tracking follows both where your head is and which way it is turned.
Each human eye has a 'blind spot' where...
AnswerThe optic nerve leaves the retina
There are no light-sensing cells where the optic nerve exits, so that spot sees nothing.
Expert level
What was the Sensorama, built in the early 1960s?
AnswerAn early immersive booth with 3D film, sound, smells and wind
Morton Heilig's Sensorama engaged several senses at once and is seen as a forerunner of VR.
What happens in the Müller-Lyer illusion?
AnswerEqual lines look different lengths because of arrow-shaped ends
Lines ending in outward fins look longer than identical lines ending in inward arrowheads.
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