Why 2,000-Year-Old Roman Concrete Still Stands

How is it that 2000 years later, certain Roman ruins still stand in harbors? Geologists have determined that it pertains to one of the components—aluminum tobermorite, a rare mineral found in volcanic ash. When struck with seawater (another component of Roman concrete, along with lime and rock), a possolanic reaction occurs where the tobermorite crystallizes and spreads—adding further strength. Thus, longterm seawater exposure only reinforces …

Stainless Steel Straws

According to various studies, Americans alone use some 500 million straws every day, and almost every single plastic straw ever made (regardless of whether it’s been recycled) still exists in some way on this planet. One little, and very easy, step we can all take to lessen the waste, pollution and eight million tons of plastic trash that ends up in our oceans is adopting …

Composter

Made from bamboo fiber, wood fiber, cornstarch and PET resin, this composter is, itself, biodegradable. Still durable, it’s dishwasher-safe and thanks to a thick carbon filter, it keeps the fragrance fresh—so your kitchen won’t end up smelling funky. Unlike so many others compost bins, this one also features a likable design—almost reminiscent of a teapot. There’s really no excuse not to start composting and treating …