ニューヨーク・タイムズのインスタグラム(nytimes) - 3月8日 03時39分

Bricklayers are becoming increasingly hard to find nationwide. Despite rising wages, there’s a shortage of workers. Nearly two-thirds of bricklaying contractors say they are struggling to find workers, according to a survey by the National Association of Home Builders. And it can take 3 to 4 years before a person with no experience can become a journeyman bricklayer. In addition, productivity isn’t much better than it was 2 decades ago. Bricklaying’s most important tools — a trowel, a bucket, string and a wheelbarrow — haven’t changed much over centuries. These factors would seem to put the trade at risk of a robot takeover. But a robot called SAM, short for semi-automated mason, moves at a decidedly more plodding pace. SAM can’t do corners or curves or read blueprints. It also requires workers to load its brick, refill its mortar and clean up the joints of the brick it lays. (It also costs roughly $400,000, a prohibitive amount for many small contractors.) But what SAM does do is work without getting thirsty, sick or tired. @rogerkisby took these photos at the Bricklayer 500 competition in Las Vegas. Swipe left to see SAM, and visit the link in our profile to read more.

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