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 …

Volvo’s Gearing to go All Electric

It’s been a good week for electric automobiles, thanks to two major global commitments. First, China’s Geely announced that Volvo, the Sweden-based brand they purchased back in 2010, will produce only electric or hybrid vehicles starting in 2019. This will include five new models produced at Volvo plants worldwide—three under the Volvo name and two under Polestar (Volvo’s performance brand). This makes Volvo the first …

Mendr Fixes Your Photos

A real-life Photoshop professional will edit your images, thanks to this clever app

At CH HQ, various staff members ask me to help with photo shoots, composition and—most of all—editing. While I’m always happy to lend a hand, there are times I’m not around, and of course, many people don’t work alongside a Lightroom or Photoshop pro. For anybody who needs a little assistance perfecting their images, now there is Mendr; an app that connects you with real-life …