Is a Bamboo Toothbrush Right for You?
As more and more people reconsider plastic products, bamboo toothbrush isbecoming a popular alternative to the plastic kind. We produce more than 359 million metric tons of plastic every…
Polypropylene as a Promising Plastic: A Review
Darrell Griffin hates to fly, so it was with no small degree of trepidation that he faced a flight from Los Angeles to New York a couple of years ago. Desperate for a distraction, Griffin, a film…
Polypropylene as a Promising Plastic: A Review
Darrell Griffin…
Types of Hourglass
Before the invention of mechanical clocks, timepieces used the sun's motion or simple measurement devices to track time. The sundial may be the best known ancient keeper of time, and it is still manufactured as a popular…
Types of Hourglass
Before the invention of mechanical clocks,…
Ball Valve - How They Work
A ball valve is a shut off valve that controls the flow of a liquid or gas by means of a rotary ball having a bore. By rotating the ball a quarter turn (90 degrees) around its axis, the medium can flow through or is…
Ball Valve - How They Work
A ball valve is a shut off valve…
5 Reasons to Select Paving Stones Over Concrete
The walkway or drive that leads to your home should be both a personal statement and a reflection of your good taste. What’s more, the materials should stand up to the weather, look great for years at a…
5 Reasons to Select Paving Stones Over Concrete
The walkway or…