ISO 22764:2020—Jewelry And Precious Metals
During the formation of Earth, molten iron sank to its center to make the core, which took with it the vast majority of the planet’s…
ISO 7173:2023—Chairs And Stools
In medieval times, only people from royalty or nobility sat on chairs. People belonging to lower social status usually sat on stools, and when in…
ISO 8559-1:2017—Size Designation of Clothes
Initially, soldiers’ uniforms were custom-made. As the Civil War (1861-1865) continued and the demand for uniforms grew, manufacturers decided it would be more efficient to…
ISO 4241:2019—Projection Film Leader
Does film have sound? If the reel has a thin yellow or rust-colored strip alongside the reel next to the sprockets and a thicker yellow-colored…
Adventure Tourism
Wildlife biologists made modern ziplining popular when they were looking for a way to study and explore densely forested areas of Costa Rica without disturbing…
ISO 8124-6:2018—Phthalate Esters In Toys
A sticky chemical that oozes from the plastic used in very old dolls and some other toys may pose a health risk. Some dolls and…
ASTM F2999-19: Adult Jewelry
The earliest known jewelry is dated 142,000-150,000 years ago. It is a necklace made from half-inch-long sea snail shells found in a cave in Bizmoune…
ASTM F1250-20: Exercise Bicycles And Ergometers
During the 1970s – 1990s, the fitness industry boomed, and as a result, stationary bike sales sky-rocketed. At this time, commercial gyms and exercising at…
CSA Z96-2022: High-Visibility Safety Apparel
A Danish Study about the effectiveness of high-visibility (hi-vis) clothing found that the number of accidents per person per month was 47% lower among bicycle riders…