Excessive background noise or reverberation in physical education spaces interferes with speech communication and thus presents an acoustical impediment to learning. ASA/ANSI S12.60-2019/Part 4 (R2024):…
More than 1,000,000 acres of land have been planted to grow Christmas trees, with more than 2,000 trees typically planted per acre. Maintaining fire resistant…
The earliest known example of a rug was discovered in an archeological dig in 1948 in the Altai Mountains in Siberia. It was discovered in…
In ancient Egypt, many Pharaohs wore broad ties adorned with precious stones wrapped around their necks. This broad collar functioned as an indispensable ornament for the gods,…
Public gymnasiums sprung up in the US in the early 1800s. At this time, different types of fitness flooring emerged based on specific gymnastic activities….
ASTM F963, the standard for toy safety, has been revised. The current version, ASTM F963-23: Standard Consumer Safety Specification for Toy Safety, revises and supersedes…
Flammability is an aspect that certain toy safety standards cover because some toys can easily catch on fire if they contain flammable material that would pose a hazard…
The kangaroo was the first animal to jump on a trampoline. To promote his invention, George Nissen jumped on a trampoline alongside a kangaroo in Central Park,…
Bouncy castles and inflatable slides have become a stable of childhood entertainment. However, injuries or even fatalities can happen if inflatable amusement devices are incorrectly set…