Not exact matches
For some reason
freezing and later thawing pumpkin brings a lot
of water to the
surface.
Cook gnocchi in a large pot
of boiling salted
water, stirring occasionally, until gnocchi float to the
surface, about 2 minutes (slightly longer if
frozen).
If the
surface is very cold (below the
freezing point
of water) the condensed
water vapor
freezes, this is what we see as frost.
«When the weather fluctuates between warm and cold and in bodies
of water where there are currents underneath the ice, it can weaken the
surface of the ice and make it dangerously fragile even though it seems to be
frozen solid,» said Joe Pecoraro, manager
of the Park District's Beaches and Pools Unit, who narrated the demonstration.
Films
of liquid
water persist far below
freezing, like coatings
of condensation, on the
surfaces of some minerals.
Muscles must stay warm to remain efficient, but that's a challenge for these beasts because they often swim in near -
freezing waters, either in cold regions
of the world or deep below the sun - warmed
surface.
On Pluto, a slurry
of nitrogen and
water ice melted by subsurface heat stands in for lava, the team suggests,
freezing solid once it is exposed at the
surface.
The dayside
of a planet close to an M dwarf, however, might become so hot that
water escapes to space; on the frigid nightside, the atmosphere could
freeze to the
surface.
But the soil on Mars is known to host perchlorate salts, which lower the
freezing point
of water, meaning the chilly
surface conditions are not an absolute barrier to liquid
water.
Rime is white ice that forms when
water droplets in fog
freeze to the
surfaces of objects.
Although today's Martian
surface is barren,
frozen and uninhabitable, a trail
of evidence points to a once warmer, wetter planet, where
water flowed freely.
In the 1990s the Galileo space probe collected convincing evidence that Jupiter's large moon Europa has a global ocean
of liquid
water beneath its
frozen surface.
While that
water could initially come from Earth, it could later come from
water ice
frozen on asteroids, in shadowed regions
of the moon's
surface, from possible sources on Mars» two moons, or from Mars itself.
Schimdt has found evidence that warm ocean currents and convective forces beneath Europa's
frozen shell can cause large blocks
of ice to overturn and melt, bringing vast pockets
of water, sometimes holding as much liquid as all
of the Great Lakes combined, to within several kilometers
of the moon's icy
surface.
Within two hours Phoenix had transmitted the first
surface images
of the planet's polar terrain: a level plain marked with regular octagonal mounds and furrows, evidence
of freeze - thaw cycles in a substance that Phoenix's instruments would prove to be
frozen water.
Two years ago tomorrow, the Phoenix Mars Lander plopped down near the north pole, and for 5 months it transmitted data indicating the onetime presence
of water beneath the
frozen surface.
Fitted with a spectrometer that measured the varying wavelengths
of light reflected back to Earth, the scope allowed him to determine Europa's composition, and prove that its
surface is an expanse
of frozen water.
There is probably
water - ice at depth on Pluto, but the
surface ice is a mixture
of frozen methane, ethane, carbon monoxide and nitrogen.
New research shows how a layer
of water on the
surface of ice — even at temperatures well below
freezing — can influence everything from the slipperiness
of a skating rink to the electrification
of thunderclouds
This creates a dense net
of fibers that
water can't penetrate — and it also traps air bubbles that prevent heat transfer, keeping
water from
freezing on the feather's
surface.
Experiments and simulations showed that a
water droplet on a repellent
surface will
freeze upward into a microscopic six - armed formation that resembles an idealized snowflake, with only a small portion
of its base adhering to the
surface.
Theories
of icicle growth had traditionally had nothing to say about such features, but Farzaneh and Ueno suggested
surface tension between the
freezing water and the surrounding air was the culprit: the higher the
surface tension, the fewer ripples on the icicles (Physics
of Fluids, vol 22, p 017102).
Scheduled for launch in May, it will place a seismometer on the
surface to probe the interior and perhaps find
frozen remnants
of that ancient ocean, or even liquid
water.
Discovered in 1978 by the United States Naval Observatory, Charon is the largest
of Pluto's five moons and is only half the size
of Pluto and one - eighth
of its mass, with a
surface dominated by a mixture
of water ice and
frozen ammonia.
Among the potential technological tools
of the mission is a super-heated drill that would land on the moon's
frozen surface and burrow through approximately 15 miles
of frozen water, reaching the massive store
of liquid
water beneath.
The telescope is believed to have captured direct images
of water vapor plumes rising 125 miles above the
surface of Jupiter's
frozen moon.
Water ice and perhaps liquid water occur beneath the frozen surfaces of three of Jupiter's moons, although currently none have free surface wa
Water ice and perhaps liquid
water occur beneath the frozen surfaces of three of Jupiter's moons, although currently none have free surface wa
water occur beneath the
frozen surfaces of three
of Jupiter's moons, although currently none have free
surface waters.
And here's one reason: The snippets
of DNA that they studied all come from
frozen lake
water collected tens
of meters above the current
surface of the lake.
The salts could be remnants
of an ocean, or localized bodies
of water, that reached the
surface and then
froze millions
of years ago.
KAMUELA, Hawaii — With data collected from the mighty W. M. Keck Observatory, California Institute
of Technology (Caltech) astronomer Mike Brown — known as the Pluto killer for discovering a Kuiper - belt object that led to the demotion
of Pluto from planetary status — and Kevin Hand from the Jet Propulsion Laboratory (JPL) have found the strongest evidence yet that salty
water from the vast liquid ocean beneath Europa's
frozen exterior actually makes its way to the
surface.
Using NASA's Infrared Telescope Facility on Hawaii's Mauna Kea, the spectra revealed the consistent presence
of frozen water as different parts
of the asteroid's
surface came into view.
Because planets either too close to or too far from their host stars will be at temperatures that cause
water either to boil or to
freeze, astrobiologists define a «habitable zone,» a range
of orbital distances within which planets can support liquid
water on their
surfaces.
A recent study by a team
of US astronomers argues that Charon might harbor
frozen underground oceans
of liquid
water, the pressence
of which could be inferred by
surface geologic features that could be visible to the New Horizons -LSB-...]
The discovery team presumes that VP113 has an icy reflective
surface like other relatively small, outer Solar System objects, as the dwarf planet is observed to have a pink tinge, which is hypothesized to result from chemical changes produced by the effect
of radiation on
frozen water, methane, and carbon dioxide.
«So the best explanation is a region
of salty, liquid
water below the
frozen surface, which supplies a conductive layer.
This layer
of cold, fresh
water on the ocean
surface freezes easily [10].
«The
surface of Mars is so cold — on average -70 ° to -100 °C -LSB--94 °F to -148 °F]-- that any
water within 2 or 3 kilometers
of the
surface, never mind a meter or two, should be permanently
frozen, they noted.»
Currently, the planet is barren and below
freezing, with much
of its
water seen near the
surface as ice.
Because the average
surface temperature
of Mars is colder than -80 °F and the atmospheric pressure is 6 — 10 mbar, liquid
water would quickly
freeze on Mars.
Farrow's second Émile Cinq - Mars novel opens with a stunning sequence in which the Montreal police detective finds a body submerged in
water beneath a
frozen lake, a favorite haunt
of ice fisherman: «The circular ice hole was partially filled with
water, and a few inches below the
surface floated a human head, the long hair beaded with ice, the face plunged down into the frigid lake.»
These abilities allow Link to manipulate the environment by lifting magnetic objects,
freezing objects (and later enemies) in time, creating blocks
of ice on
water surfaces, and summoning bombs.
Some
of the later areas, especially the inundated temple (where you have to
freeze enemies and leap atop and from their
frozen forms to proceed from one
water - enclosed slab
of stone to the next) and the ice cavern (with its slippery
surfaces and tricky platforming), pose extreme challenges; you'll feel great when you finally get through them.
Although the river last
froze more than half a century ago, the designers have also allowed for the possibility
of skating on the pool's
surface, by adding wood slats and a thin layer
of water on top that can be left to
freeze.
JacquesLB (# 8)-- your argument only explains why the bottom
of the ocean is not colder than it is, or indeed
frozen at the bottom — colder
water heads upwards and
freezes at the
surface.
Of course, during winter as the
water freezes on the
surface, the resulting sea - ice is less dense, so it floats.
A longer period
of open
water with larger areas will allow more mixing
of the top 2 - 300 meters, which should increase the
surface salinity prior to
freeze up, possibly enhancing the effect.
Scientists have thought that the feathers»
water repellency was at the heart
of matter —
water would slide off the
surface before having a chance to
freeze.
The sinking is mainly driven by the saltiness
of the
water, which is affected by evaporation
of fresh
water from the
surface or, particularly in the Arctic,
freezing seawater which leaves salt behind in the
water beneath the ice.
If the sun suddenly shut off, the earth would cool down quickly, and get so cold that the greenhouse gases (most, if not all; certainly
water vapor and CO2 - methane
freezes at 91 degrees k or -182 deg C) that slow the loss
of heat to space would condense out, making the equilibrium
surface temperature even colder.
This is very interesting, not the missing data or that stuff, but the ocean
surface temperature looks to be tightly constrained by the specific volume
of the atmosphere and the
freezing points
of water.