Water
Use attributes for filter ! | |
Density | 997 kg/m³ |
---|---|
Molar mass | 18. 01528 g/mol |
18.01528 g/mol | |
Formula | H2O |
Boiling point | 100 °C |
Melting point | 0 °C |
Iupac id | Oxidane, Water |
Okra answer panel weight per gallon | Weight per gallon |
Okra answer panel specific heat | Specific heat |
Okra answer panel heat capacity | Heat capacity |
Okra answer panel polarity | Polarity |
Energy | USDA |
Nutrition | Total Fat |
Date of Reg. | |
Date of Upd. | |
ID | 820205 |
About Water
Water is an inorganic, transparent, tasteless, odorless, and nearly colorless chemical substance, which is the main constituent of Earth's hydrosphere and the fluids of all known living organisms. It is vital for all known forms of life, even though it provides no calories or organic nutrients.
Every Bitcoin payment 'uses a swimming pool of water'
...By Chris VallanceTechnology reporter, BBC NewsEvery Bitcoin transaction uses, on average, enough Water to fill " a back yard swimming pool" a new study suggests...
A23a: World's biggest iceberg on the move after 30 years
... The past year has seen it drifting at speed, and the berg is now about to spill beyond Antarctic Waters...
Boom in unusual jellyfish spotted in UK waters
...By Georgina RannardClimate and science reporterThe number of jellyfish spotted in UK Waters and on beaches increased by 32% in the past year, according to a survey by the Marine Conservation Society...
Experts call for tighter limits on 'forever chemicals' in water
...By Esme StallardClimate and science reporter, BBC NewsStricter limits are needed on levels of forever chemicals in UK drinking Water which are potentially harmful to human health, experts have warned...
Khan Younis: A Gaza city on its knees, now with a million mouths to feed
... Doctors say they have almost nothing to give the stream of new casualties - Water is rationed to 300ml a day for patients...
Warning AI industry could use as much energy as the Netherlands
... How much energy - and Water - does AI use? AI systems such as the large language models that power popular chatbots, like OpenAI s ChatGPT and Google s Bard, require warehouses full of specialist computers - called data centres - to work...
Migrants trying to reach the UK cross the Alps on foot
... Red Cross workers come to distribute food and Water - one telling me of migrants they found who needed their fingers amputated after catching frostbite...
Osiris-Rex: Asteroid Bennu 'is a journey back to our origins'
... How did the Earth form and why is it a habitable world? Where did the oceans get their Water; where did the air in our atmosphere come from; and most importantly, what is the source of the organic molecules that make up all life on Earth? " The prevailing thinking is that many of the key components were actually delivered to our planet early in its history in a rain of impacting asteroids, many of them perhaps just like Bennu...
A23a: World's biggest iceberg on the move after 30 years
By Jonathan AmosScience correspondent
The world's biggest iceberg is on The Move after More Than 30 years being stuck to The Ocean floor.
A23a, as it's called, calved from the Antarctic coastline in 1986, but almost immediately grounded in the Weddell Sea to become, essentially, an Ice Island .
At almost 4,000 sq km (1,500 sq miles) in area, it's More Than twice the size of Greater London .
The Past year has seen it drifting at speed, and the berg is now about to spill beyond Antarctic waters.
A23a is a true colossus, and it's not just its width That impresses.
This slab of ice is some 400m (1,312 ft) thick. For comparison, the London Shard, the tallest skyscraper in Europe, is a mere 310m tall.
A23a was part of a mass outbreak of bergs from the White Continent's Filchner Ice Shelf .
At The Time , it was hosting a Soviet research station, which just illustrates how long ago its calving occurred.
Moscow despatched an expedition to remove equipment from the Druzhnaya 1 base, fearing it would be lost. But the tabular berg didn't move far from the coast before its deep keel anchored it rigidly to the Weddell's bottom-muds.
So, why, after almost 40 Years , is A23a on The Move now?
" I asked a couple of colleagues about this, wondering if there was any possible change in shelf Water temperatures That might have provoked it, but the consensus is The Time had just come, " said Dr Andrew Fleming , a Remote Sensing expert from The British Antarctic Survey.
" It was grounded since 1986 but eventually it was going to decrease (in size) sufficiently to lose grip and start moving. I spotted first movement back in 2020. "
A23a has put on a spurt in recent months, driven by winds and currents, and is now passing the northern tip of the Antarctic Peninsula .
Like most icebergs from the Weddell sector, A23a will almost certainly be ejected into the Antarctic Circumpolar Current, which will throw it towards The South Atlantic on a path That has become known as " iceberg alley".
This is the same movement of Water - and accompanying westerlies - That the famous explorer Sir Ernest Shackleton exploited in 1916 to make his escape from Antarctica following The Loss of his ship, the Endurance, in crushing sea-ice.
Shackleton aimed his lifeboat for South Georgia, and it's at this island That you will frequently see the big tabular bergs sitting offshore. The blocks' keels mean they have a tendency to get pinned on The British Overseas Territory's shallow Continental Shelf .
Eventually, all bergs, however big, are doomed to melt and wither away.
Scientists will be following A23a's progress closely.
If it does ground at South Georgia, it might cause problems for The Millions of seals, penguins and other seabirds That breed on The Island . A23a's great bulk could disrupt The Animals ' normal foraging routes, preventing them from feeding their young properly.
But it would be wrong to think of icebergs as being just objects of Danger - Titanic and All That . There's a growing recognition of their importance to the wider environment.
As these big bergs melt, they release the mineral dust That was incorporated into their ice when they were part of glaciers scraping along The Rock bed of Antarctica. This dust is a source of nutrients for the organisms That form The Base of ocean Food Chains .
" In many ways these icebergs are life-giving; they are The Origin point for a lot of biological activity, " said Dr Catherine Walker , from the Woods Hole Oceanographic Institution, who was born in the same year as A23a. " I identify with it; it's always been there for me. "
Related TopicsSource of news: bbc.com