Properties of water

Water (H
2O) is the most abundant compound on Earth's surface, covering 70 percent of the planet. In nature, water exists in liquid, solid, and gaseous states. It is in dynamic equilibrium between the liquid and gas states at standard temperature and pressure. At room temperature, it is a tasteless and odorless liquid, nearly colorless with a hint of blue. Many substances dissolve in water and it is commonly referred to as the universal solvent. Because of this, water in nature and in use is rarely pure and some properties may vary from those of the pure substance. However, there are also many compounds that are essentially, if not completely, insoluble in water. Water is the only common substance found naturally in all three common states of matter and it is essential for all life on Earth. Water makes up 55% to 78% of the human body.

Forms of water

H2O (disambiguation)

H₂O is the chemical formula for water, ice or steam.

H₂O or H2O may also refer to:

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See also

H2O (software)

H2O is open-source software for big-data analysis. It is produced by the start-up H2O.ai (formerly 0xdata), which launched in 2011 in Silicon Valley. The speed and flexibility of H2O allow users to fit hundreds or thousands of potential models as part of discovering patterns in data. With H2O, users can throw models at data to find usable information, allowing H2O to discover patterns. Using H2O, Cisco estimates each month 20 thousand models of its customers' propensities to buy.

H2O's mathematical core is developed with the leadership of Arno Candel; after H2O was rated as the best "open-source Java machine learning project" by GitHub's programming members, Candel was named to the first class of "Big Data All Stars" by Fortune in 2014. The firm's scientific advisors are experts on statistical learning theory and mathematical optimization.

The H2O software runs can be called from the statistical package R and other environments. It is used for exploring and analyzing datasets held in cloud computing systems and in the Apache Hadoop Distributed File System as well as in the conventional operating-systems Linux, Mac OS, and Microsoft Windows. The H2O software is written in Java, Python, and R. Its graphical-user interface is compatible with four popular browsers: Chrome, Safari, Firefox, and Internet Explorer.

Supernatural

The supernatural (Medieval Latin: supernātūrālis: supra "above" + naturalis "natural", first used: 1520–1530 AD) is that which is not subject to the laws of physics or, more figuratively, that which is said to exist above and beyond nature.

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The metaphysical considerations of the existence of the supernatural can be difficult to approach as an exercise in philosophy or theology because any dependencies on its antithesis, the natural, will ultimately have to be inverted or rejected.

One complicating factor is that there is disagreement about the definition of "natural" and the limits of naturalism. Concepts in the supernatural domain are closely related to concepts in religious spirituality and occultism or spiritualism.

The term "supernatural" is often used interchangeably with paranormal or preternatural — the latter typically limited to an adjective for describing abilities which appear to exceed the bounds of possibility.Epistemologically, the relationship between the supernatural and the natural is indistinct in terms of natural phenomena that, ex hypothesi, violate the laws of nature, in so far as such laws are realistically accountable.

Supernatural (U.S. TV series)

Supernatural is an American fantasy horror television series created by Eric Kripke. It was first broadcast on September 13, 2005, on The WB and subsequently became part of successor The CW's lineup. Starring Jared Padalecki as Sam Winchester and Jensen Ackles as Dean Winchester, the series follows the two brothers as they hunt demons, ghosts, monsters, and other supernatural beings in the world. The series is produced by Warner Bros. Television, in association with Wonderland Sound and Vision. Along with Kripke, executive producers have been McG, Robert Singer, Phil Sgriccia, Sera Gamble, Jeremy Carver, John Shiban, Ben Edlund and Adam Glass. Former executive producer and director Kim Manners died of lung cancer during production of the fourth season.

The series is filmed in Vancouver, British Columbia and surrounding areas and was in development for nearly ten years, as creator Kripke spent several years unsuccessfully pitching it. The pilot was viewed by an estimated 5.69 million viewers, and the ratings of the first four episodes prompted The WB to pick up the series for a full season. Originally, Kripke planned the series for three seasons but later expanded it to five. The fifth season concluded the series' main storyline, and Kripke departed the series as showrunner. The series has continued on for several more seasons with Sera Gamble and Jeremy Carver assuming the role of showrunner. The series was renewed for an eleventh season, which premiered on October 7, 2015. With its eleventh season, Supernatural became the longest-running North American science-fiction series (surpassing Smallville, which has 218 episodes).

Supernatural (Ben E. King album)

Supernatural marks Ben E. King's transition to the main Atlantic Records label after time on subsidiary labels. The album is King's ninth album and eighth studio album. The single,"Supernatural Thing Part 1" brought him a return to chart success, reaching #1 on the R&B charts, his first time in fourteen years, and peaking at #5 on the Billboard Hot 100.

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