Brain teasers come in all shapes and sizes. Some challenge your logic, others test your maths skills, while a few stretch ...

In our today’s optical illusion, we bring you a visual personality test that goes beyond the surface. What looks like just an image of three tunnels — each leading to a different world — is actually a ...

In today’s optical illusion challenge, a vibrant cityscape hides a cleverly camouflaged black cat. Only 1% of viewers can ...

Chinook Blast 2025 is Calgary’s annual winter festival that celebrates all things art, music, and more. Part of the festival ...

Medical imaging experts are adept at solving common optical illusions, according to new research. The research is the first to show that people can be trained to do better at solving visual illusions, ...

Here the authors demonstrate a temporal Vernier caliper for arbitrary waveform synthesis with a sampling rate over 1 TSa/s. These results, which surpass current electronic systems by an order of ...

What Is the Maze Procedure (Surgical Ablation)? If you have an irregular heartbeat caused by atrial fibrillation (AFib), you may need surgery to restore your normal heart rhythm. This is called ...

In this mindboggling project, you will make an Optical Illusion Toy. By making this optical illusion toy, you will learn, in a fun way, about how our eyes and brain make sense of our world. Students ...

An optical illusion challenge is testing people’s observational skills! In a sea of 7s and 3s, a lone number 8 is hidden—can you spot it? This brain teaser plays on perceptual grouping, making it ...

Optical illusion billboards are popping up across Sydney in a bid to encourage Australians to get their vision tested. Picture: Supplied. The illusion is only visible when out of focus ...

Optical illusion challenge questions have emerged as the most sought-after challenge on the web. These astounding photographs not just amuse but also challenge your eye strength and intelligence ...