In projective geometry, a collineation is a one-to-one and onto map (a bijection) from one projective space to another, or from a projective space to itself, such that the images of collinear points are themselves collinear. A collineation is thus an isomorphism between projective spaces, or an automorphism from a projective space to itself. Some authors restrict the definition of collineation to the case where it is an automorphism. The set of all collineations of a space to itself form a group, called the collineation group. (Wikipedia).
👉 Learn about dilations. Dilation is the transformation of a shape by a scale factor to produce an image that is similar to the original shape but is different in size from the original shape. A dilation that creates a larger image is called an enlargement or a stretch while a dilation tha
From playlist Transformations
👉 Learn about dilations. Dilation is the transformation of a shape by a scale factor to produce an image that is similar to the original shape but is different in size from the original shape. A dilation that creates a larger image is called an enlargement or a stretch while a dilation tha
From playlist Transformations
Trigonometry 6 The Sine of the Sum and the Difference of Two Angles
A description of the sine function of the sum and difference of two angles.
From playlist Trigonometry
What are the Inverse Trigonometric functions and what do they mean?
👉 Learn how to evaluate inverse trigonometric functions. The inverse trigonometric functions are used to obtain theta, the angle which yielded the trigonometric function value. It is usually helpful to use the calculator to calculate the inverse trigonometric functions, especially for non-
From playlist Evaluate Inverse Trigonometric Functions
What are dilations, similarity and scale factors
👉 Learn about dilations. Dilation is the transformation of a shape by a scale factor to produce an image that is similar to the original shape but is different in size from the original shape. A dilation that creates a larger image is called an enlargement or a stretch while a dilation tha
From playlist Transformations
What is an enlargement dilation
👉 Learn about dilations. Dilation is the transformation of a shape by a scale factor to produce an image that is similar to the original shape but is different in size from the original shape. A dilation that creates a larger image is called an enlargement or a stretch while a dilation tha
From playlist Transformations
How to determine the ratio of a reduction dilation
👉 Learn about dilations. Dilation is the transformation of a shape by a scale factor to produce an image that is similar to the original shape but is different in size from the original shape. A dilation that creates a larger image is called an enlargement or a stretch while a dilation tha
From playlist Transformations
What is the definition of the inverse sine function
👉 Learn how to evaluate inverse trigonometric functions. The inverse trigonometric functions are used to obtain theta, the angle which yielded the trigonometric function value. It is usually helpful to use the calculator to calculate the inverse trigonometric functions, especially for non-
From playlist Evaluate Inverse Trigonometric Functions
Skeletal Formula - Revision for A-Level Chemistry
I want to help you achieve the grades you (and I) know you are capable of; these grades are the stepping stone to your future. Even if you don't want to study science or maths further, the grades you get now will open doors in the future. Get exam ready for GCSE Maths https://primrosekitt
From playlist Oxford AQA International A-Level Chemistry | Revision Playlist
In Memory Of Michael Collins (1922)
County Cork, Ireland (Eire). Full titles read: "IN MEMORY OF MICHAEL COLLINS - SOLDIER STATESMAN - AND A MAN." Intertitle reads: "The genial personality of Michael Collins made him loved." L/S of Michael Collins amongst crowds of people, he pats small boy on head as he walks past. M/
From playlist Michael Collins
Michael Collins electioneering in County Cork, and Belfast Ireland (Eire). Note: "Some of the material in this item are cuts. There is also some material that does not relate to the County Cork election." M/S's of a smartly dressed Michael Collins speaking to to woman milking a cow a
From playlist Michael Collins
Caspar Collins and the Battle of the River Platte Bridge
In 1865, an alliance of the Sioux, Arapaho, and Cheyenne fielded one of the largest armies to face the United States Army during the Plains Indian Wars. The History Guy remembers Caspar Collins and the Battle of the River Platte Bridge. This is original content based on research by The Hi
From playlist Wyoming
Building the Thinnest Skyscraper South of the Equator
Prefabricated elements are being used to construct one of the world's most slender skyscrapers in Melbourne, Australia. For more by The B1M subscribe now - http://ow.ly/GxW7y Read the full story on this video, including images and useful links, here - http://www.theb1m.com/video/collins
From playlist Awesome Construction Tech - The B1M
Treaty That Caused Irish Civil War - The Anglo-Irish Treaty 1921 (Documentary)
Support us on Patreon: https://patreon.com/realtimehistory The Irish and British sides of the Irish War of Independence were exhausted from two years of fighting. The IRA was also about to run out of ammunition and other vital supplies to keep up the fight. And so the British government an
From playlist All Videos from THE GREAT WAR - chronological order
IRELAND: IRA leader Michael Collins killed in ambush (1922)
GAUMONT GRAPHIC NEWSREEL (REUTERS) To license this film, visit https://www.britishpathe.com/video/VLVAASXO9WF5ESMDLBPVX6UOII5T8-IRELAND-IRA-LEADER-MICHAEL-COLLINS-KILLED-IN-AMBUSH Various shots of Michael Collins. Full Description: SLATE INFORMATION: Ireland's Lost Leader. The late Ge
From playlist Michael Collins
A Strange Ring in the World's Oldest Lake | What On Earth? (Full Episode)
NASA astronaut Mike Barratt, describes photographing a strange ring in the ice on the world's oldest and most mysterious lake from the International Space Station. More rings on Lake Baikal have been seen since, they baffle scientists. Stream Full Episodes of What on Earth?: https://www.s
From playlist Free Science Channel Episodes
Sir James Craig visits Michael Collins (1922)
GAUMONT GRAPHIC NEWSREEL (REUTERS) To license this film, visit https://www.britishpathe.com/video/VLVA6DUO1UO34XYL8BNWFBKNUABJL-SIR-JAMES-CRAIG-VISITS-MICHAEL-COLLINS Sir James Craig (Ulster unionist leader and first premier of Northern Ireland) visits Michael Collins (Irish revolutionar
From playlist Michael Collins
Trigonometry 4 The Area of a Triangle
Various ways of using trigonometry to determine the area of a triangle.
From playlist Trigonometry
Why It's So Hard for Scientists to Believe in God? | Francis Collins | Big Think
Why It's So Hard for Scientists to Believe in God? New videos weekly: https://bigth.ink/youtube Join Big Think+ for exclusive videos: https://bigthink.com/plus/ ------------------- Some scientists see religion as a threat to the scientific method that should be resisted. But faith "is real
From playlist Science vs. religion: Is there a clash? | Big Think