Virtual Reality, or VR, uses a special headset to completely replace your real-world view with a digital world. It makes you feel like you are physically inside a computer-generated environment.

Virtual Reality Basics

Augmented Reality, or AR, layers digital images and information over the real world you see around you. You usually use a smartphone camera or clear glasses to see these digital additions.

Augmented Reality Basics

VR is about isolation because it cuts you off from the real world to immerse you elsewhere. AR is about enhancement because it keeps you present in the real world while adding helpful digital details.

Isolation vs Enhancement

VR typically requires bulky headsets that cover your eyes and ears. AR is more accessible and often works on devices you already own, like smartphones or tablets.

Devices You Use

Schools use VR to take students on virtual trips to the moon or ancient history. This allows children to explore places that are too far away or no longer exist.

Digital Field Trips

AR can make textbooks come to life by showing 3D models of hearts or planets when you point your phone at a page. This helps students understand complex shapes and movements more easily.

Interactive Learning Tools

VR is used to train firefighters and pilots in a safe, digital space before they face real-life risks. It allows them to make mistakes and learn without anyone getting hurt.

Practicing Dangerous Jobs

In healthcare, AR can project a map of a patient's veins or organs directly onto their skin. This helps doctors perform surgeries and give injections with much higher accuracy.

Helping Doctors See

Public interest groups use VR to let people 'walk in someone else's shoes' by experiencing different life perspectives. This is a powerful tool for teaching people about social issues and fairness.

Building Better Empathy

Architects use VR to let city residents walk through a new park or building before it is actually built. This helps the community give feedback on how their neighborhood should look.

Planning Cities Virtually

AR allows you to see how a new sofa would look in your actual living room before you purchase it. You simply point your phone at an empty space to see the digital furniture at scale.

Trying Before Buying

Some people feel dizzy or nauseous when using VR because their eyes see movement that their body doesn't feel. This is a common challenge that technology creators are working to solve.

What is Virtual Reality?