The chart below shows the normal range of a resting heart rate (pulse rate after resting 10 minutes) in beats per minute, according to age.
This version of Thor's hammer was made by master swordsmith Tony Swatton. He's a Picasso when it comes to recreating movie props like Wolverine's claws, swords from Game of Thrones and weapons of the Teenage Mutant Ninja Turtles.
And assuming you're referring to the nordic Thor instead of the Marvel Thor: MjÃ¶lnir could either be a stone hammer (Based on the name), or made from iron when Sindri and Brokkr had a bet with Loki that they could create items more beautiful than those of the Sons of Ivaldi.