Less than 10 ppm What Is Limewater? Aquarists have used limewater very successfully for a number of years, and it is the system that I use in my aquarium. It is comprised of an aqueous solution of calcium and hydroxide ions that can be made by dissolving either quicklime or lime in fresh water.
Earthrise taken from Apollo 8 on December 24, The idea of the Earth as an integrated whole, a living being, has a long tradition. James Lovelock gave this name to his hypothesis after a suggestion from the novelist William Goldingwho was living in the same village as Lovelock at the time BowerchalkeWiltshireUK.
Golding's advice was based on Gea, an alternative spelling for the name of the Greek goddess, which is used as prefix in geology, geophysics and geochemistry. In the eighteenth century, as geology consolidated as a modern science, James Hutton maintained that geological and biological processes are interlinked.
Vernadsky was a Ukrainian geochemist and was one of the first scientists to recognize that the oxygen, nitrogen, and carbon dioxide in the Earth's atmosphere result from biological processes.
During the s he published works arguing that living organisms could reshape the planet as surely as any physical force. Vernadsky was a pioneer of the scientific bases for the environmental sciences. Also in the turn to the 20th century Aldo Leopoldpioneer in the development of modern environmental ethics and in the movement for wilderness conservation, suggested a living Earth in his biocentric or holistic ethics regarding land.
It is at least not impossible to regard the earth's parts—soil, mountains, rivers, atmosphere etc,—as organs or parts of organs of a coordinated whole, each part with its definite function.
And if we could see this whole, as a whole, through a great period of time, we might perceive not only organs with coordinated functions, but possibly also that process of consumption as replacement which in biology we call metabolism, or growth.
In such case we would have all the visible attributes of a living thing, which we do not realize to be such because it is too big, and its life processes too slow. During the s, the first humans in space could see how the Earth looked as a whole.
The photograph Earthrise taken by astronaut William Anders in during the Apollo 8 mission became, through the Overview Effect an early symbol for the global ecology movement. According to the data gathered by the Pic du Midi observatoryplanets like Mars or Venus had atmospheres in chemical equilibrium.
This difference with the Earth atmosphere was considered to be a proof that there was no life in these planets. Lovelock formulated the Gaia Hypothesis in journal articles in  and followed by a popularizing book Gaia: A new look at life on Earth.
An article in the New Scientist of February 6, and a popular book length version of the hypothesis, published in as The Quest for Gaia, began to attract scientific and critical attention.
Lovelock called it first the Earth feedback hypothesis,  and it was a way to explain the fact that combinations of chemicals including oxygen and methane persist in stable concentrations in the atmosphere of the Earth. Lovelock suggested detecting such combinations in other planets' atmospheres as a relatively reliable and cheap way to detect life.
Lynn Margulis Later, other relationships such as sea creatures producing sulfur and iodine in approximately the same quantities as required by land creatures emerged and helped bolster the hypothesis.
Lynn Margulis joined Lovelock in the effort of fleshing out the initial hypothesis into scientifically proven concepts, contributing her knowledge about how microbes affect the atmosphere and the different layers in the surface of the planet.
Margulis dedicated the last of eight chapters in her book, The Symbiotic Planet, to Gaia. However, she objected to the widespread personification of Gaia and stressed that Gaia is "not an organism", but "an emergent property of interaction among organisms".
She defined Gaia as "the series of interacting ecosystems that compose a single huge ecosystem at the Earth's surface. The book's most memorable "slogan" was actually quipped by a student of Margulis': James Lovelock called his first proposal the Gaia hypothesis but has also used the term Gaia theory.
Lovelock states that the initial formulation was based on observation, but still lacked a scientific explanation. The Gaia hypothesis has since been supported by a number of scientific experiments  and provided a number of useful predictions.
Some people attended. During the "philosophical foundations" session of the conference, David Abram spoke on the influence of metaphor in science, and of the Gaia hypothesis as offering a new and potentially game-changing metaphorics, while James Kirchner criticised the Gaia hypothesis for its imprecision.
Kirchner claimed that this was already accepted scientifically and was not new. Kirchner claimed that this was not testable and therefore was not scientific. Of Homeostatic Gaia, Kirchner recognised two alternatives.With plays inspired by the sciences growing into a full genre, I thought readers would find it helpful to have this annotated list of such plays reviewed at CurtainUp.
All things considered, everything on this list offered something of interest though there were as many misses as hits. I. Admitting a bias is the first step to overcoming it, so I’ll admit it: I have a huge bias against growth mindset.
(if you’re not familiar with it, growth mindset is the belief that people who believe ability doesn’t matter and only effort determines success are more resilient, skillful, hard-working, perseverant in the face of failure, and better-in-a-bunch-of-other-ways than people.
35 -- Advance of Consciousness -- HEXAGRAM NUMBER THIRTY-FIVE -- ADVANCE OF CONSCIOUSNESS. Other titles: Progress, Prospering, The Symbol of Forwardness, To Advance, Advancement, Making Headway, Getting the Idea, “Comes the Dawn” Judgment.
Legge: In Advance of Consciousness we see a prince who secures the tranquility of the people presented on that account .
May 05, · I recently came across this post at Science & Religion Today, authored by Dan Kahan, who is the Elizabeth K. Dollard Professor at Yale Law ashio-midori.com clarifies so many important issues about.
Unhappy Meals By Michael Pollan The New York Times Magazine, January 28, Eat food. Not too much. Mostly plants. That, more or less, is the short answer to the supposedly incredibly complicated and confusing question of what we humans should eat in order to be maximally healthy.
Both lime and quicklime are suitable for making limewater (kalkwasser) and otherwise supplementing calcium and alkalinity in reef ashio-midori.com are some important differences between the use of lime and quicklime that will be discussed in subsequent sections.