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Project is about naturally accumulating sand in the ocean without sculpting or pumping sand, but letting the ocean accumulate it on its own and guiding it, or collaborating with the ocean to promote the accumulation in certain areas where you want it or need it. skylar tibbits and his team simulate the conditions of the pacific ocean and the movement of the sand. they place different—shaped objects in the environment to see which is the best at sand—gathering. our hypothesis is that the reason sand accumulates in certain areas and not others is due to the relationship of the geometry under...

This is the beginnings of a new island built on sandbags. and you can see where the sand has accumulated using the forces of nature. it's been here for about two years. it's 20 metres long, it's about four metres wide and about 1.5 metres above the sea bed. another half—metre and it should pop up above the surface and hopefullyjust keep growing. each time we go, we try different materials, different construction techniques. the reason for that is because we want to try to make it as scalable as possible. because this is a global problem, it's not only focused on the maldives. so if you reall...

In the ocean without sculpting or pumping sand, but letting the ocean accumulate it on its own and guiding it, or collaborating with the ocean to promote the accumulation in certain areas where you want it or need it — skylar tibbits and his team simulate the conditions of the pacific ocean and the movement of the sand. they place different—shaped objects in the environment to see which is the best at sand—gathering. our hypothesis is that the reason sand accumulates in certain areas and not others is due to the relationship of the geometry underwater and the force of the oceans. and so,...

This is a city of 250,000 people crammed into a space more densely populated than manhattan. and it's completely hectic. it's so packed, it's hard to get a sense of how developed it is until you get a little bit of distance. there's not an inch of space left. so much so that they built another island just to house all the people. this is hulhumale, built to cope with an ever—growing population just 15 years ago. but how do you build an island? to find out, i went on a brand—new one. so, we're standing on an artificial island? exactly. two—and—a—half years ago, - this was a very small...

And as a physicist, i thought, you know, can we use this? sarah dole is sri lankan, but has been living in the maldives for over a decade, and has dedicated herself to studying this natural shift of sand to find a way to create islands sustainably. so first of all, you know, we had to study the fundamentals. so at mit, they are studying the fundamental physics and engineering of it. so, like, trying to understand, how does a sandbank actually form? and that, we've done through satellite imagery and drone footage and, you know, talking to other locals around here, trying to understand the histo...