The CURTA Collectors and Registry Page

The province is also rich in minerals such as potash, uranium, coal, oil and natural gas. The unemployment rate in Saskatchewan is currently less than 4 percent, the lowest in Canada, making Saskatchewan a good place to find work in Canada. Saskatchewan Standard of Living Saskatchewan has a high standard of living, which helps to attract immigrants to settle in the province. The cost of living in Saskatchewan is quite affordable by Canadian standards. Housing costs are among the lowest in Canada, with natural resources helping to keep down energy costs. Saskatchewan has a strong tradition of publically-funded social programs that make a major contribution to maintaining high standards of living for all residents of the province. It was a former Premier of Saskatchewan, Tommy Douglas, who is considered the father of Medicare in Canada, pioneering the drive for universal free healthcare that has since been adopted throughout Canada. Saskatchewan Residential Housing Purchasing or renting a home for a family is relatively affordable for newcomers, by Canadian standards. Only about 65 percent of Saskatchewan residents live in urban areas. With less urban demand to drive up prices, Saskatchewan has traditionally had very affordable housing, but this has been on the rise lately because of its successful economy.

Exponential and Logarithmic Equations

Born 22 Jan ; died 3 Sep at age Beginning in , Price studied the complex Antikythera geared mechanism recovered from an Ancient Greek shipwreck off the Greek island of Antikythera. By he and Greek nuclear physicist Charalampos Karakalos were making X-ray and gamma-ray images of the various fragments. In , Price published their findings in a page paper. Together with indications from gear settings and inscriptions, Price dated its manufacture at about 87 BC to be a mechanical astronomical calculator.

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U Dating Calculator Current ratio of U in natural uranium is the same anywhere in the solar system Uranium Dating Calculator. Because the half-life is different with U and U, the higher the percentage of U so retroactively.

See my copyright notice for fair use practices. There are several ways to figure out relative ages, that is, if one thing is older than another. For example, looking at a series of layers in the side of a cliff, the younger layers will be on top of the older layers. Or you can tell that certain parts of the Moon’s surface are older than other parts by counting the number of craters per unit area. The old surface will have many craters per area because it has been exposed to space for a long time.

If you assume that the impact rate has been constant for the past several billion years, then the number of craters will be proportional to how long the surface is exposed.

Uranium (U) 238 Radioactive Isotope Decay Calculator

Fantasies, Falsehoods, and Fear-Mongering about Iran’s Nuclear Program “To tell deliberate lies while genuinely believing in them, to forget any fact that has become inconvenient, and then, when it becomes necessary again, to draw it back from oblivion for just so long as it is needed, to deny the existence of objective reality and all the while to take account of the reality which one denies — all this is indispensably necessary.

For nearly thirty years now, U. If these warnings are to be believed, Iran is only a few years away from unveiling a nuclear bomb Fittingly, let’s begin in An April 24, article entitled ” ‘Ayatollah’ Bomb in Production for Iran ” in United Press International referenced a Jane’s Intelligence Defense Weekly report warning that Iran was moving “very quickly” towards a nuclear weapon and could have one as early as

Power As we discussed earlier, power is the rate of energy transfer. The rate at which something happens is the “something” divided by the time–for example, miles/hour = miles per hour, or .

More generally we can say: By the time the capsule volume has been reduced by half, then half of all the work that is done on the capsule has been completed assuming constant ablation pressure. Another way to look at it is that as the capsule implodes, its surface area shrinks. Since the pressure which is the force per unit area is constant, the total force, and the ability to do work, on the capsule shrinks also with decreasing radius.

We should observe that the ablation process soaks up a lot of energy. A simplistic computation of the work done in imploding a 10 liter secondary in the “W “, assuming constant ablation pressure, shows that 6.

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The term Half Life Time was coined in The Half Life Time is the amount of time it takes for half of the atoms in a sample to decay. Half Life is a characteristic of each radioactive isotope.

Useful for calculating today’s activity for any radioactive isotope. You may also back decay sources to find out the original activity (or for any date), knowing the current activity.

These values are either listed in 49CFR Class 7 radioactive material. See the definition of Radioactive material in this section. Closed transport vehicle means a transport vehicle or conveyance equipped with a securely attached exterior enclosure that during normal transportation restricts the access of unauthorized persons to the cargo space containing the Class 7 radioactive materials.

The enclosure may be either temporary or permanent, and in the case of packaged materials may be of the “see-through” type, and must limit access from top, sides, and bottom. Containment system means the assembly of components of the packaging intended to retain the radioactive contents during transportation. For transport by public highway or rail: Design means the description of a special form Class 7 radioactive material, a package, packaging, or LSA-III, that enables those items to be fully identified.

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Until recent years, scientists who believe in creation haven’t had the necessary resources to explore radiometric dating in detail. A 10 gram sample of U Now that has changed, and some important discoveries are being made. When granite rock hardens, it freezes radioactive elements in place. The most common radioactive element in granite is Uranium This element is locked in tiny zircons within the granite. As part of the decay process, helium is produced.

Uranium (U) Radioactive Isotope Decay Calculator Online radioactive decay calculator that allows you to find out the radioactivity decay in Uranium (U) Note: The calculation of radioactivity in minerals is based on certain assumptions.

Displayed background gamma radiation level is 9. Cloud chambers used by early researchers first detected cosmic rays and other background radiation. They can be used to visualize the background radiation Radioactive material is found throughout nature. Detectable amounts occur naturally in soil , rocks, water, air, and vegetation, from which it is inhaled and ingested into the body. In addition to this internal exposure, humans also receive external exposure from radioactive materials that remain outside the body and from cosmic radiation from space.

The worldwide average natural dose to humans is about 2. In some rich countries, like the US and Japan, artificial exposure is, on average, greater than the natural exposure, due to greater access to medical imaging. This exposure is in most cases of little or no concern to society, but in certain situations the introduction of health protection measures needs to be considered, for example when working with uranium and thorium ores and other Naturally Occurring Radioactive Material NORM.

These situations have become the focus of greater attention by the Agency in recent years. Environmental radioactivity Terrestrial radiation, for the purpose of the table above, only includes sources that remain external to the body. The major radionuclides of concern are potassium , uranium and thorium and their decay products, some of which, like radium and radon are intensely radioactive but occur in low concentrations.

Most of these sources have been decreasing, due to radioactive decay since the formation of the Earth, because there is no significant amount currently transported to the Earth. Thus, the present activity on earth from uranium is only half as much as it originally was because of its 4.

Background radiation

Hitler, unable to make a living as an artist, turned to earning extra money by serving as an army intelligence agent reporting to a Captain Karl Mayr. The bushy-eyebrowed Hess flew alone to England in May , in an effort to make peace. In August , British military authorities announced that Hess had committed suicide, a judgment that continues to be disputed.

Several recent studies of the Hess incident show there was much deeper meaning to this intriguing story, which was only magnified by his sudden and mysterious death just as his release from captivity seemed imminent.

Home GIS Career GIS Applications & Uses – How GIS Is Changing the World GIS Applications & Uses – How GIS Is Changing the World.

The complexity of the problems solved varies widely, as well: In any case, the calculators provide better usability features than many alternatives, and therefore are widely used – even in circles that have access to those expensive commercial software packages The calculation procedure and the parameters used, as well as any assumptions and simplifications made are described in the Help file accompanying each calculator.

Task-specific calculators for each purpose This concept ensures that you have to deal only with those parameters actually needed for the specific task – so no hassle with unneccessary parameter ballast, but, you have to make sure that you pick the exact calculator that solves your problem. The brief descriptions below will assist you in making the correct choice. Everything under control on a single page For most of the calculators, input and output is completely contained on a single web page – eliminating the worries about any parameter values forgotten in some sub-sub-sub menu.

Simple normalization Where applicable, the calculators offer the possibility to produce the required results for any given amount and type of raw material or intermediate product in the nuclear fuel chain: Quick first results Most of the calculators produce an output already after a simple click on the “Calculate” button, since the parameters are preset to reasonable values.

User-alterable parameters The impacts of parameter variations can be studied by modifying one or more parameters of interest, followed by a “Calculate”-click. In the same way, generic data can be replaced by site-specific data, where available. Simple offline use As the calculators run completely on the client computer, you may store the calculator files on your local disk for offline use save page as complete Web page.

Background radiation

More generally we can say: By the time the capsule volume has been reduced by half, then half of all the work that is done on the capsule has been completed assuming constant ablation pressure. Another way to look at it is that as the capsule implodes, its surface area shrinks. Since the pressure which is the force per unit area is constant, the total force, and the ability to do work, on the capsule shrinks also with decreasing radius.

Calculates the dating in the past from the ratio of Uranium in natural uranium. Current ratio of U in natural uranium is the same anywhere in the solar system. Because the half-life is different with U and U, the higher the percentage of U so retroactively.

The areas covered by the licenses are in the districts of southern, north east, south east, Ngamiland, Kweneng, Kgalagadi, Gantsi and central. It is just over six years since the government evicted more than Bushmen from the reserve, although it has always denied any connection between mining and the evictions. The Bushmen won the right to return to their land inside the reserve in a landmark ruling at Botswana’s High Court in , where the judges recognized that the evictions had been ‘unlawful’ and ‘unconstitutional’.

But the Botswana government is doing all it can to stop the Bushmen from going home, banning them from using a water borehole to get water inside the reserve, and stopping them from hunting for food. Meanwhile, any mines in the reserve will have to drill multiple boreholes to operate, and will create massive disruption to both the Bushmen and the wildlife. Villagers to be resettled for Letlhakane uranium mine project: This week, the Australia-based company [ A-Cap Resources Ltd ] said it has embarked on a comprehensive consultation and engagement with communities affected by the envisaged project in those villages in the Central District.

It added that the committee is expected to work with A-Cap and Ecosurv during the development of the RAP, which will ultimately guide the developer during the compensation phase. The consultation kicks off today in the Serule and Gojwane villages, where the development of a mine and wellfield will take place. Letlhakane uranium mine project obtains provisional surface rights: The surface rights are provisional upon compensation for the affected land rights holders in the area being resolved.

Letlhakane uranium mine project obtains environmental approval:

End of Life

SN SN I own a Curta II in a plastic case, serial , with instruction leaflet and a copy of the yellow computations manual. This is in excellent used condition. Bought from Bryan Halladay in England and was used in rallying. I am learning to use it competently in historic rallying of my MGB Roadster. I am interested in trading for a mint Curta I or Curta II in a metal case that is complete with all literature and box. Also I would like to obtain a lether rally case as well.

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Daven Hiskey 10 comments Today I found out bananas are naturally radioactive. Specifically, they contain Potassium , which is a radioactive isotope of potassium. The fact that bananas are radioactive has actually given rise to the radiation unit: This leaked radiation is typically extremely small, typically in the realm of a picocurie, which is a millionth of a millionth of a curie. So given eating one banana a day for a year only exposes you to 3. In fact, recent research has even begun to indicate that these extreme low level amounts of radiation you experience from the cosmos, bananas, and the like, may actually be beneficial to your body.

Public reaction to Three Mile Island was way overboard from what the actual event warranted as you can see from the banana equivalent dose. This was largely due to misinformation in the press; misunderstanding of radiation among the general public; and the fact that, not 12 days before it happened, the movie The China Syndrome was released.

The plot of the movie was basically how unsafe nuclear reactors were and that just about everyone in the movie but one of the main characters was trying to cover it up. Getting around the fact that it is actually the Indian Ocean that is on the opposite side of the Earth from the U. The movie was nominated for several academy awards, including best actress by Jane Fonda.

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