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### The minimum eccentricity for the design of column is || #analytics #civilengineering #bpsc #bpscae

The minimum eccentricity for the design of column is || #analytics #civilengineering #bpsc #bpscae

The minimum eccentricity for the design of column is || #analytics #civilengineering #bpsc #bpscae

### Milankovitch (Orbital) Cycles and Their Role in Earth’s Climate – Climate Change: Vital Signs of the Planet ^{[1]}

Milankovitch (Orbital) Cycles and Their Role in Earth’s Climate. Our lives literally revolve around cycles: series of events that are repeated regularly in the same order

Some are natural, such as the change of the seasons, annual animal migrations or the circadian rhythms that govern our sleep patterns. Others are human-produced, like growing and harvesting crops, musical rhythms or economic cycles.

A century ago, Serbian scientist Milutin Milankovitch hypothesized the long-term, collective effects of changes in Earth’s position relative to the Sun are a strong driver of Earth’s long-term climate, and are responsible for triggering the beginning and end of glaciation periods (Ice Ages).. Specifically, he examined how variations in three types of Earth orbital movements affect how much solar radiation (known as insolation) reaches the top of Earth’s atmosphere as well as where the insolation reaches

### Kepler’s Three Laws ^{[2]}

Kepler was a sophisticated mathematician, and so the advance that he made in the study of the motion of the planets was to introduce a mathematical foundation for the heliocentric model of the solar system. Where Ptolemy and Copernicus relied on assumptions, such as that the circle is a “perfect” shape and all orbits must be circular, Kepler showed that mathematically a circular orbit could not match the data for Mars, but that an elliptical orbit did match the data! We now refer to the following statement as Kepler’s First Law:

Here is a demonstration of the classic method for drawing an ellipse:. The two thumbtacks in the image represent the two foci of the ellipse, and the string ensures that the sum of the distances from the two foci (the tacks) to the pencil is a constant

We know that in a circle, all lines that pass through the center (diameters) are exactly equal in length. However, in an ellipse, lines that you draw through the center vary in length

### What is the name of the geocentric figure which has the minimum eccentricity? ^{[3]}

Incidentally, you probably meant “geometric figure”.. A circle is an ellipse with the minimum eccentricity.

Neither, The Geocentric theory was created by a student of ‘Plato’s’ by the name of Ptolemy. This would be known as a geocentric model, and it is pretty easy to show why such a model is unlikely.

This was considered the correct model for centuries. The heliocentric model places the sun at the centre of the solar system and all other bodies rotate around the sun

### Lab Activity Ellipses Answer Key — I Hate CBT’s ^{[4]}

Answer: a special geometric figure that has 2 center points called foci. Answer: the roundness of an ellipse that is calculated by distance between foci over length of major axis

Answer: special geometric figure with one centerpoint where all points going around it have the same radius away from the center. Question: what change takes place in the eccentricity of the ellipses when you increase the distance between the foci

Answer: ellipse #4, had the eccentricity of 0.608cm. Question: which of the four ellipses you drew ( not including the circle ) was the least eccentric

### Wikipedia ^{[5]}

In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. It generalizes a circle, which is the special type of ellipse in which the two focal points are the same

An ellipse has a simple algebraic solution for its area, but only approximations for its perimeter (also known as circumference), for which integration is required to obtain an exact solution.. Analytically, the equation of a standard ellipse centered at the origin with width and height is:

Ellipses have many similarities with the other two forms of conic sections, parabolas and hyperbolas, both of which are open and unbounded. An angled cross section of a cylinder is also an ellipse.

### Eccentricity (mathematics) ^{[6]}

In mathematics, the eccentricity of a conic section is a non-negative real number that uniquely characterizes its shape.. One can think of the eccentricity as a measure of how much a conic section deviates from being circular

Two conic sections with the same eccentricity are similar.. Any conic section can be defined as the locus of points whose distances to a point (the focus) and a line (the directrix) are in a constant ratio

The eccentricity can also be defined in terms of the intersection of a plane and a double-napped cone associated with the conic section. If the cone is oriented with its axis vertical, the eccentricity is[1]

### Definition, Types, List and Examples ^{[7]}

In Mathematics, Geometric shapes are the figures which demonstrate the shape of the objects we see in our everyday life. In geometry, shapes are the forms of objects which have boundary lines, angles and surfaces

Shapes are also classified with respect to their regularity or uniformity. A regular shape is usually symmetrical such as a square, circle, etc

For example, the shape of a tree is irregular or organic.. In plane geometry, the two-dimensional shapes are flat shapes and closed figures such as circles, squares, rectangles, rhombus, etc

### Geometrical Figures ^{[8]}

Quadrilateral is one of the plane geometrical figures bounded by four sides and four angles. Sum of the four angles in a quadrilateral is (interior angles) equal to 360°

To construct a quadrilateral out of four sides, four angles and two diagonals a minimum of five dimensions are required of which two must be sides. Square: In a square all the four sides are equal and its four angles are at right angles

To construct a square we need to know length of the side or length of the diagonal.. Rectangle: In a rectangle, opposite sides are equal and parallel and all four angles are right angles.

### Ellipse lab ^{[9]}

Name:_______________________________ Period:_____ Date:______________. examine and measure them to determine some of the fundamental properties of ellipses.

When you have completed the construction and measurement of your ellipses, carefully. and thoughtfully answer the questions posted at the end of this lab.

Measure the distance (d) between foci 1 & 2 to the nearest tenth.. Measure the length (L) of the major access of ellipse 1 to the nearest tenth.

### What are Geometric Shapes? Definition, Types, Properties, Facts ^{[10]}

Geometric shapes are closed figures created using points, line segments, circles, and curves. Some of the geometric shape examples are circle, rectangle, triangle, etc

Irregular shapes have sides that are of different measures. Some of the most popular shapes are explained below:

In a rectangle, the opposite sides are parallel and equal in length. The difference between a rectangle and a square is that in a rectangle, two parallel line segments are longer than the other two, while in a square, all line segments are of equal length.

### Expert Maths Tutoring in the UK ^{[11]}

The eccentricity of any curved shape characterizes its shape, regardless of its size. The four curves that get formed when a plane intersects with the double-napped cone are circle, ellipse, parabola, and hyperbola

The circles have zero eccentricity and the parabolas have unit eccentricity. The ellipses and hyperbolas have varying eccentricities

The eccentricity of conic sections is defined as the ratio of the distance from any point on the conic section to the focus to the perpendicular distance from that point to the nearest directrix. For any conic section, the eccentricity of a conic section is the distance of any point on the curve to its focus ÷ the distance of the same point to its directrix = a constant

### Sources

- https://climate.nasa.gov/news/2948/milankovitch-orbital-cycles-and-their-role-in-earths-climate/#:~:text=Eccentricity%20%E2%80%93%20Earth’s%20annual%20pilgrimage%20around,nearly%20circular%20to%20slightly%20elliptical.
- https://www.e-education.psu.edu/astro801/book/export/html/1537#:~:text=The%20larger%20the%20distance%20between,an%20ellipse%20of%20eccentricity%200.
- https://www.answers.com/natural-sciences/What_is_the_name_of_the_geocentric_figure_which_has_the_minimum_eccentricity
- https://www.ihatecbts.com/questions-answers/2023/6/26/lab-activity-ellipses-answer-key
- https://en.wikipedia.org/wiki/Ellipse
- https://en.wikipedia.org/wiki/Eccentricity_(mathematics)
- https://byjus.com/maths/geometric-shapes/
- https://www.educationalstuffs.in/engineering-drawing-geometrical-figures/
- https://www.slideshare.net/angel4all1/ellipse-lab
- https://www.splashlearn.com/math-vocabulary/geometric-shapes
- https://www.cuemath.com/geometry/eccentricity/