True or False?

The most successful Christmas song of all time was Bing Crosby’s rendition of “White Christmas” by Irving Berlin. Since its release in 1942, the single has been sold a staggering 50 million times worldwide. When Elvis Presley covered the song, Berlin hated Presley's version so much that he tried to stop radio stations from playing it!

Arctic foxes are pretty incredible animals – they live in the most northerly place in the world and have an astonishing ability to handle cold temperatures. Thanks to their fluffy white fur they won’t start shivering until the temperature goes down to -70 degrees Celsius.

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!