sweden exercise machines

Photo credit: Public domain – Swedish physician Dr. Gustav Zander designed dozens of exercise machines in the mid-1800s.

Education, History (Education)

What the ‘gym bros’ of the 19th century used as workout equipment was wild

Annie Reneau

4/8/2025
An Operation Smile volunteer reverses an oxygen mask so a child with a cleft condition can blow a bubble for the first time in Guadalajara, Mexico. (Operation Smile Photos)

In Partnership With Operation Smile →

Family, Science

How Bubbles Help Kids with Cleft Conditions

Sarah Watts

5/11/2026