True or False?

For approximately 200 years, microscope technology remained relatively unchanged. In the 1850s, however, Carl Zeiss, a German engineer, developed improvements for the device! Joseph Jackson Lister also helped eliminate the unequal bending of light hitting the microscope lens, leading to further improvements!

Have you ever had a brain freeze while eating ice cream? The effect is caused by a cold substance touching the roof of your mouth making the blood vessels in your head dilate. Eating ice cream is a serious business!

The most famous sleuth in history is instantly recognisable by his cape and deerstalker – and yet, this isn’t the way he is described in the books. Holmes would only don such an outfit for cases in the countryside, and his cap is never identified as a deerstalker.