Time management is difficult to master, but is critical for productivity. One executive coach has a helpful analogy involving rocks, pebbles, and sand that can drive home the point of effective ...

Sia had a stomach ache. It turns out the 29-year-old siamang at Zoo Miami had a buildup of sand and small pebbles in her gastrointestinal tract. So on Friday, the park in southwest Miami-Dade calle… ...

Pebbles and sand scattered near an ancient Martian river network may present the most convincing evidence yet that the frigid deserts of the Red Planet were once a habitable environment traversed by ...

Putting the sand in first will leave no more room for the rocks and pebbles, which is why the largest rocks should be put in first, followed by the pebbles, and the sand last, with the smaller ...

Pebbles and sand scattered near an ancient Martian river net­work may present the most convincing evidence yet that the frigid deserts of the Red Planet were once a habitable environment ...

Research effort uses distributed robots that communicate with each other to auto-duplicate shapes by forming an object out of a larger pile of smart sand. MIT 'smart sand' and 'robot pebbles ...

And under an Italian law introduced in 2017, trading sand, pebbles and shells is also illegal, and punishable with fines of up to €3,000 (£2,750).