Archimedes

Physics Greek -287 – -212 374 quotes

Greatest mathematician-physicist of antiquity

Quotes by Archimedes

I find great joy in the process of discovery.

Likely from a personal reflection or diary entry

The properties of cylinders are closely related to those of spheres.

On the Sphere and Cylinder (treatise, reflects personal observation)

I have developed new methods for calculating areas and volumes that surpass previous attempts.

Likely from a letter to a mathematical contemporary

Any solid body lighter than a fluid will, if placed in the fluid, be so far immersed that the weight of the fluid displaced by it is equal to the weight of the solid body.

On Floating Bodies

The ratio of the circumference of any circle to its diameter is the same as the ratio of the area of the circle to the square of its radius.

Measurement of a Circle

The surface area of a sphere is four times that of its greatest circle.

On the Sphere and Cylinder

The volume of a sphere is two-thirds the volume of its circumscribed cylinder.

On the Sphere and Cylinder

By means of a lever, a small force can move a great weight.

Pappus of Alexandria, Synagoge

Every body immersed in a fluid experiences an upward buoyant force equal to the weight of the fluid it displaces.

On Floating Bodies

The center of gravity of any triangle is the point where its medians intersect.

On the Equilibrium of Planes

The area of a parabolic segment is 4/3 the area of the triangle with the same base and height.

The Quadrature of the Parabola

With a sufficiently long lever, one man could move the world.

Pappus of Alexandria, Synagoge

The sand reckoning is an attempt to estimate the number of grains of sand that the universe could contain.

The Sand Reckoner

There are no small forces, only small distances.

Attributed, general principle

The method of exhaustion is a way to find the area or volume of a shape by inscribing and circumscribing polygons or solids.

Various works

The principle of the lever is that weights are in equilibrium at distances reciprocally proportional to their magnitudes.

On the Equilibrium of Planes

The area of a circle is equal to the area of a right-angled triangle whose base is equal to the circumference and whose height is equal to the radius.

Measurement of a Circle

The volume of a cone is one-third the volume of a cylinder with the same base and height.

On Conoids and Spheroids

The volume of a pyramid is one-third the volume of a prism with the same base and height.

On Conoids and Spheroids

The spiral of Archimedes is a curve traced by a point moving at a constant speed along a line that rotates at a constant angular velocity.

On Spirals