Hacker News new | past | comments | ask | show | jobs | submit login

My favorite fun fact:

The Great Pyramid holds a record that will almost certainly never be broken: it was the tallest human-made structure in the world for over 3800 years.

(OK technically the Tower of Jericho held the record for ~4000 years, but it was only 28 feet (8.5m) tall; another neolithic archaeological dig could unseat it; that’s not happening with Giza)

If we all got quietly wiped out tomorrow, I wonder how long it would take for the Burj Khalifa to fall down. Probably less than 3800 years. Then maybe some older, shorter, stronger skyscraper in a geologically stable zone would take the crown for a while.

In the long run though, I suspect the solid stone construction and ultra stable shape of the Great Pyramid would see it regain the title and keep it for hundreds of thousands of years until it blew away.

Interesting to speculate about, anyway. Let us hope we all live forever.

I think anything made of steel and concrete would crumble within a couple of centuries, without maintenance. The rebar would rust.

Maybe the stone cathedrals would last longer?

In any case, the biggest man made structure would probably be an open-cast mine or a slag heap.

>Tower of Jericho held the record for ~4000 years, but it was only 28 feet (8.5m) tall

Wondering if they made the same mistake as the Spinal Tap guys..

I can't move on from this discussion without a nod to you for this comment. It provided an unexpected and much needed laugh.

Applications are open for YC Summer 2020

Guidelines | FAQ | Support | API | Security | Lists | Bookmarklet | Legal | Apply to YC | Contact