sieve

They also relied on panning - the washing of sediment through a sieve so the gold settles at the bottom.

For decades, I’ve heard that the border is little better than a sieve through which millions of migrants easily pass.

"It's tedious work. We dig a pit, pull out chunks of soil and rock, wash them in a sieve and then carefully sift through thousands of dried, tiny stones to look for diamonds," he said.

Even as the White House and the Democratic Party began leaking like a sieve with reports of anger, panic and frantic planning, none of those leaks involved Harris.

"The goldene sheets are in a solution, a bit like cornflakes in milk. Using a type of "sieve," we can collect the gold and examine it using an electron microscope to confirm that we have succeeded. Which we have," says Shun Kashiwaya.