From Amy Poehler’s Smart Girls YouTube series: meet firefighter Xochitl Hernandez, one of 57 female firefighters in Austin Fire Department. Hernandez explains why she loves her job, and shares some of the amazing equipment that she uses with her brigade to help people in need.
Showing 6 posts tagged safety
A long tradition in the region, castells began at the end of the 18th century. The sport has rules, techniques, and team responsibilities to guard safety and success. The pinya or base is made of a few hundred people that can catch anyone who falls, and the tower itself has a variety of different formations. The top three levels are the pom de dalt, made up of children in helmets.
While the video above doesn’t show some of the more harrowing challenges, this video by Mike Randolph in 2010 captures why safety and teamwork are so important:
The Figure 8 is a stopper knot — it prevents the end of a rope sliding through a pulley or it can be used to add security to another knot. It is relatively easy to undo, is preferred to the Overhand Knot, but is not as secure as the Double Overhand.
Elderly people with Alzheimer’s Disease or dementia sometimes forget to use the manual brakes on their wheelchairs, which then fall out from under them when they try to stand or sit. When this was brought to the attention of crop farmer Jerry Ford, he decided to do something about it. His invention is a rather clever automatic brake system for manual wheelchairs. It’s even designed in a way that still allows the wheelchair to fold up for transport.
Bubbles + Dry Ice (the solid form of carbon dioxide) come together in this step by step video for “creating planets.” It’s also a great DIY parent-kid project for learning about physics, gasses, surface tension, sublimation (when a solid turns into a gas without passing through a liquid phase), and — since dry ice will burn skin — how to safely conduct an experiment!
Previously: soap film rainbows on a bubble.