Understand the differences between HTTP and HTTPS in 90 seconds
You can find URLs which start with http or https. Do you know the differences between them? Let's learn what HTTPS is in just 90 seconds!
Learn how to play a basic drum fill in 90 seconds
90 seconds to learn Japanese vocabulary - Electric appliance!
Learn Japanese vocabulary in 90 seconds - Theme: Trains!
Learn about eyestrain and short-sightedness in 90 seconds
