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Babylonian mathematics refers to any mathematics of the peoples of Mesopotamia modern Iraq from the days of the early Sumerians through the Hellenistic period almost to the dawn of Christianity. The first few hundred years of the second millennium BC Old Babylonian period , and the last few centuries of the first millennium BC Seleucid period. Later under the Arab Empire , Mesopotamia, especially Baghdad , once again became an important center of study for Islamic mathematics. In contrast to the sparsity of sources in Egyptian mathematics , our knowledge of Babylonian mathematics is derived from more than clay tablets unearthed since the s. Some of these appear to be graded homework. They developed a complex system of metrology from BC. From around BC onwards, the Sumerians wrote multiplication tables on clay tablets and dealt with geometrical exercises and division problems. The earliest traces of the Babylonian numerals also date back to this period. It is likely the sexagesimal system was chosen because 60 can be evenly divided by 2, 3, 4, 5, 6, 10, 12, 15, 20 and

## History of mathematics

Science and Its Times: Bibliography of Primary Sources Apollonius of Perga. This work consisted of 8 books with some theorems. In this great treatise, he set forth a new method for subdividing a cone to produce circles, and discussed ellipses, parabolas, and hyperbolas—shapes he was the first to identify and name.

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For my Algebra 2 students, I gave them a list of exponent rules. We wrote a word summary of what type of problem each exponent rule would help us with. My marker choice was not good for photographing They were really struggling with applying these to the problems we were simplifying. They kept claiming that they just didn’t know where to start. Eventually, I broke down and gave them an order of steps to follow.

This helped them a lot. Though, I wish they could solve these problems without me writing out step by step directions. We were working on simplifying expressions like this: We don’t have time to derive all of the rules from scratch. But, they act like they’ve never seen anything like this before. My main motivation for doing this as a skill is to prepare for dealing with negative and zero exponents when we work with rational exponents and logarithms.

We did lots and lots of practice problems with that, and I don’t think I’ve seen anyone make that mistake at all lately.

## Archimedes

The physics is discussed in two subsections: Descartes apparently received the stimulus to study these works from Isaac Beeckman ; his earliest recorded thoughts on mathematics are found in the correspondence with Beeckman that followed their meeting in As Descartes wrote in his Rules for the Direction of the Mind ca. Yet each problem will be solved according to its own nature, as, for example, in arithmetic some questions are resolved by rational numbers, others only by irrational numbers, and others finally can be imagined but not solved.

I cannot imagine anything that could not be solved by such lines at least, though I hope to show which questions can be solved in this or that way and not any other, so that almost nothing will remain to be found in geometry 6. Descartes sought, then, from the beginning of his research a symbolic algebra of pure quantity by which problems of any sort could be analyzed and classified in terms of the constructive techniques required for their most efficient solution.

Writing Equations of Circles Use the distance formula to find r. 2 1 2 2 d (x 1 x Geometry Notes G Equations of Circles Mrs. Grieser Page 2.

Expanded equation of a circle Video transcript – [Voiceover] So we have a circle here and they specified some points for us. This little orangeish, or, I guess, maroonish-red point right over here is the center of the circle, and then this blue point is a point that happens to sit on the circle. And so with that information, I want you to pause the video and see if you can figure out the equation for this circle.

Alright, let’s work through this together. So let’s first think about the center of the circle. And the center of the circle is just going to be the coordinates of that point. So, the x-coordinate is negative one and then the y-coordinate is one. So center is negative one comma one. And now, let’s think about what the radius of the circle is. Well, the radius is going to be the distance between the center and any point on the circle.

So, for example, for example, this distance. The distance of that line. Let’s see I can do it thicker.

## Equation of a Circle

Reconstruction The techniques of astronomy Astronomical observations involve a sequence of stages, each of which may impose constraints on the type of information attainable. Radiant energy is collected with telescopes and brought to a focus on a detector, which is calibrated so that its sensitivity and spectral response are known. Accurate pointing and timing are required to permit the correlation of observations made with different instrument systems working in different wavelength intervals and located at places far apart.

The radiation must be spectrally analyzed so that the processes responsible for radiation emission can be identified.

If you’re writing a nasty solution for this problem that involves solving several simultaneous equations, you’re taking the standard route. each card will fit in the box in only two possible ways (gray-side-up or white-side-up). Each card contains 2R circles lined up in two columns and R rows, each of which may be punched out (so it is a.

We covered this thoroughly in Algebra 1, but I know they needed to be reminded after two summers plus a year of geometry. I typically use this foldable with my students in Algebra 1, so I wanted something on the quicker and easier side that they hadn’t seen before. I whipped up a quick graphic organizer over graphing ordered pairs. Then, I gave my students a coordinate graphing picture from Worksheetworks.

My picture looked a bit different from one of my students which makes me think that I might have accidentally skipped a few points. I did this over the course of a day in between helping students. I should have marked off each point as I graphed it to make sure I didn’t miss any with all my starting and stopping.

## One more step

History of Technology Heroes and Villains – A little light reading Here you will find a brief history of technology. Initially inspired by the development of batteries, it covers technology in general and includes some interesting little known, or long forgotten, facts as well as a few myths about the development of technology, the science behind it, the context in which it occurred and the deeds of the many personalities, eccentrics and charlatans involved.

You may find the Search Engine , the Technology Timeline or the Hall of Fame quicker if you are looking for something or somebody in particular.

Test 1 History of Math study guide by paige includes 76 questions covering vocabulary, terms and more. Quizlet flashcards, activities and games help you improve your grades.

I celebrate myself, and sing myself, And what I assume you shall assume, For every atom belonging to me as good belongs to you. I loafe and invite my soul, I lean and loafe at my ease observing a spear of summer grass. My tongue, every atom of my blood, form’d from this soil, this air, Born here of parents born here from parents the same, and their parents the same, I, now thirty-seven years old in perfect health begin, Hoping to cease not till death.

Creeds and schools in abeyance, Retiring back a while sufficed at what they are, but never forgotten, I harbor for good or bad, I permit to speak at every hazard, Nature without check with original energy. The atmosphere is not a perfume, it has no taste of the distillation, it is odorless, It is for my mouth forever, I am in love with it, I will go to the bank by the wood and become undisguised and naked, I am mad for it to be in contact with me.

Have you reckon’d a thousand acres much? Have you practis’d so long to learn to read? Have you felt so proud to get at the meaning of poems? Stop this day and night with me and you shall possess the origin of all poems, You shall possess the good of the earth and sun, there are millions of suns left, You shall no longer take things at second or third hand, nor look through the eyes of the dead, nor feed on the spectres in books, You shall not look through my eyes either, nor take things from me, You shall listen to all sides and filter them from your self.

There was never any more inception than there is now, Nor any more youth or age than there is now, And will never be any more perfection than there is now, Nor any more heaven or hell than there is now. Urge and urge and urge, Always the procreant urge of the world. Out of the dimness opposite equals advance, always substance and increase, always sex, Always a knit of identity, always distinction, always a breed of life.

To elaborate is no avail, learn’d and unlearn’d feel that it is so. Sure as the most certain sure, plumb in the uprights, well entretied, braced in the beams, Stout as a horse, affectionate, haughty, electrical, I and this mystery here we stand.

## Bibliography of Primary Sources

Play media By placing a metal bar in a container with water on a scale, the bar displaces as much water as its own volume , increasing its mass and weighing down the scale. The most widely known anecdote about Archimedes tells of how he invented a method for determining the volume of an object with an irregular shape. According to Vitruvius , a votive crown for a temple had been made for King Hiero II of Syracuse , who had supplied the pure gold to be used, and Archimedes was asked to determine whether some silver had been substituted by the dishonest goldsmith.

While taking a bath, he noticed that the level of the water in the tub rose as he got in, and realized that this effect could be used to determine the volume of the crown.

Mini-Lesson Area of Circles. Volume of Cylinders, Cones, and Spheres. Stations/Practice. Friday, February 19th. Finding the Distance between two coordinate points using the Distance Formula. Bell Ringer-Writing equations Parallel/Perpendicular to given equation. SpringBoard pgs

Posted on May 24, by The Physicist The original question was: Does this occur due to centripetal force and the lack of friction to stop the Earth from spinning? If so, where did this centripetal force come from? The same is true of stellar nebulae the gigantic clouds of gas and dust that condense to form stars and planets. They always have at least a little bit of swirl and spin. As the cloud that became our solar system collapsed inward, the mass settled into a spinning disc with a big bump in the middle the Sun , and that disk began collapsing even more to form the planets.

This process is called accretion, and you can see it at work over and over again.

## How Good Are Those Young-Earth Arguments?

Mathematics in ancient Egypt The introduction of writing in Egypt in the predynastic period c. By virtue of their writing skills, the scribes took on all the duties of a civil service: Young men enrolled in scribal schools to learn the essentials of the trade, which included not only reading and writing but also the basics of mathematics. One of the texts popular as a copy exercise in the schools of the New Kingdom 13th century bce was a satiric letter in which one scribe, Hori, taunts his rival, Amen-em-opet, for his incompetence as an adviser and manager.

Answer us, how many bricks are needed?

Oct 01, · 1) Radiocarbon dating – understanding radioactive decay allows scientists and historians to accurately work out something’s age – whether it be from thousands or even millions of years ago. 2) Gravity, orbits and escape velocity – Escape velocity is the speed required to break free from a body’s gravitational pull.

Use Tracker software to create a Sine wave. How to use modeling to predict booms and busts. Is Bitcoin going to keep rising or crash? Some nice examples of using polar coordinates to create interesting designs. The use of regression in polling predictions. What would happen to the climate in the event of a nuclear war? The use of game theory in psychology and economics.

## Q: Why does the Earth orbit the Sun?

Eat one of those and your tummy will curl right up! Seriously speaking, a favorite attack on radiometric dating involves dangling “horror stories” about gross errors before the reader, thus giving the impression that radiometric dating is totally unreliable. Woodmorappe , with his collection of some bad radiometric dates, must surely be the master of that technique. Upon being presented with claims that radiometric dating is totally erroneous, a question naturally arises:

Nov 30, · So Equation [8] follows from Equations [6] and [7]. But it says that the divergence of the current density J is always this true? If the divergence of J is always zero, this means that the electric current flowing into any region is always equal to the electric current flowing out of the region (no divergence).This seems somewhat reasonable, as electric current in circuits flows in a loop.

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Indulging a fetish is unhealthy, and, in my opinion, beta. I was, and know, plenty of above average intelligence guys who masturbate a lot. I for one got sick of masturbating alone not so much a novel experience anymore learned game, and started getting laid. Or at least it needs to be known and dealt with accordingly. Most men, especially the intelligent ones who probably read a lot are utterly clueless when it comes to attracting women. And they usually operate in circles that consist of equally clueless people.