Early California prospectors used pans and their hands to find nuggets in freezing cold streams.
Scorpaeniforms inhabit some deep freshwater lakes but are more abundant in cold streams and rivers.
One day, some of the clear, cold streams and rivers flowing through upper Dolpo might dry up for part of the year, or stop entirely.
Enclosed by the towering, snowy mountains of the Hindu Kush and Koh-i-Baba, the valley itself is lush and green, filled with clear, cold streams.
I imagined her just sitting there, with her back to me and the Mason jar shedding water down her legs, condensation running in cold streams down her calves.
The man who became a legend recalled the carefree days of his youth, gathering wild honey and fruits, drinking warm milk from the udder of a cow, and swimming in clear, cold streams.
"It was in the fields," he wrote, "that I learned how to knock birds out of the sky with a slingshot, to gather wild honey and fruits and edible roots, to drink warm, sweet milk from the udder of a cow, to swim in the clear, cold streams, and to catch fish with twine and sharpened bits of wire".
He was a strong swimmer, too, so there's a niggling element of mystery about his death: cramp, or weed, or cold currents must have got him, and it's true - was still true 20 years later - that sometimes when the water near the edge was soupy warm you'd suddenly find your legs entwined with cold streams snaking in under the lily pads, just before the bottom shelved right away.
Some 4,500 people descended on the valley where the young Mandela "learned how to knock birds out of the sky with a slingshot, to gather wild honey and fruits and edible roots, to drink warm, sweet milk straight from the udder of a cow, to swim in the clear, cold streams, and to catch fish with twine and sharpened bits of wire," as he recalled in his autobiography.
The background process is assumed to contain two hot and two cold streams.
Vortex tube produces hot and cold streams from inlet pressurized gas.
