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When you need to measure something, most of us are pretty accustomed to using a ruler or measuring tape. But what do you do when you don’t have either of those things? Thankfully, there are a number of ways you can measure without a ruler, provided 100% accuracy isn’t required. How To Measure Without A...

Julie Hambleton

Julie Hambleton

Freelance Writer

Visual mind teasers are a great way to get your brain active and working. These “optical illusions” are proof that not everything you see is always as it is! According to Susana Martinez-Conde, who is director of the laboratory of visual neuroscience at Barrow Neurological Institute in Phoenix, Ariz: “They’re important tools in visual research to help...

Jade Small

Jade Small

Freelance Writer