![TIL the Hoover Dam was made with enough concrete to build a highway from New York to California : r/todayilearned TIL the Hoover Dam was made with enough concrete to build a highway from New York to California : r/todayilearned](https://external-preview.redd.it/RsHCzmEcojPpcBwqEJm1xdRxwqWEf8iFKzXWjLhKrsI.jpg?auto=webp&s=443a4de3512a491fd40891dd1c5c4bf292cbc062)
TIL the Hoover Dam was made with enough concrete to build a highway from New York to California : r/todayilearned
HISTORY - On #ThisDayinHistory 1930, construction of the Hoover Dam began. It would take 21,000 men a tireless five years to build what was the largest dam of its time, as well
![Ed Conway on X: "Scientists still don't 100% understand what's going on inside cement when it's setting. In chemistry labs this remains hotly-debated territory. Also intriguingly, it keeps on curing long after Ed Conway on X: "Scientists still don't 100% understand what's going on inside cement when it's setting. In chemistry labs this remains hotly-debated territory. Also intriguingly, it keeps on curing long after](https://pbs.twimg.com/media/E85rnVpXoAIqSqX.jpg)