Hafnium isn’t a particularly remarkable element. It’s not your explosive sodium, shimmering mercury or stinky sulfur. It’s a greyish metal and is commonly used as a neutron absorber in the control ...

Can you name everything from Ac to Zr? Test your knowledge of the periodic table and see if you can top the leaderboard When you purchase through links on our site, we may earn an affiliate commission ...

Earlier this year, a professor in Florida Atlantic University’s Wilkes Honors College sent a group email complaining that the dry-erase boards in the classrooms weren’t being erased. Even worse, the ...