The centrolinead was invented by Peter Nicholson, a British mathematician and architect, in 1814. It was used to construct 2-point perspective drawings where one or both vanishing points existed outside the drawing board. Draftsmen could use the instrument in pairs; one for each vanishing point on each side of the station point. Centrolineads were produced in various sizes. Typically a brass fitting clamped the wooden arms together. Fittings were produced in both right and left-handed configuration, and certain adjustable designs could be used on either side. (Wikipedia).
Link: https://www.geogebra.org/m/N9pvSPf4
From playlist PreCalculus: Dynamic Interactives!
Medians of Triangles & Centroid
I introduce Medians in Triangles and their point of concurrency...the centroid. I finish by working through three example dealing with the centroid and the ratio of the median segments. EXAMPLES AT 5:43 7:47 12:48 Find free review test, useful notes and more at http://www.mathplane.com I
From playlist Geometry
Mechanical Engineering: Centroids & Center of Gravity (3 of 35) Centroids
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the difference between the center of gravity and centroids. Next video in this series can be seen at: https://youtu.be/VPFrzuMmmvQ
From playlist MECHANICAL ENGINEERING 4 - CENTER OF GRAVITY
Watch more videos on http://www.brightstorm.com/math/geometry SUBSCRIBE FOR All OUR VIDEOS! https://www.youtube.com/subscription_center?add_user=brightstorm2 VISIT BRIGHTSTORM.com FOR TONS OF VIDEO TUTORIALS AND OTHER FEATURES! http://www.brightstorm.com/ LET'S CONNECT! Facebook ► https
From playlist Geometry
Mechanical Engineering: Centroids in 3-D (14 of 19) Centroids=? Using Direct Calculation: 1
Visit http://ilectureonline.com for more math and science lectures! In this video I find the x-component of the centroid, or center of mass, using integration. Next video in this series can be seen at: https://youtu.be/ezCpwslK8f0
From playlist MECHANICAL ENGINEERING 7 CENTROIDS IN 3-D
This video introduces the medians of a triangle and states the properties of the medians of a triangle. Complete Video List: http://mathispower4u.yolasite.com/
From playlist Relationships with Triangles
http://www.mekanizmalar.com This is a flash animation of a hydraulic closed center valve.
From playlist Pneumatic and Hydraulics
Medians, midlines, centroids and circumcenters | Universal Hyperbolic Geometry 17 | NJ Wildberger
Here we introduce basic aspects of triangle geometry into the superior framework of universal hyperbolic geometry, a purely algebraic setting valid over the rational numbers. We begin by reviewing the centroid and circumcenter in the Euclidean setting. In the hyperbolic plane, midpoints of
From playlist Universal Hyperbolic Geometry
GeoGebra resource: https://www.geogebra.org/m/pwTTqNfh
From playlist Geometry: Dynamic Interactives!
Mechanical Engineering: Centroids in 3-D (9 of 19) Solve Using Multiple Components: Ex. 2
Visit http://ilectureonline.com for more math and science lectures! In this video I will find the centroid, or center of mass, using multiple components. Next video in this series can be seen at: https://youtu.be/ejcvB69rCcY
From playlist PHYSICS 14 CENTER OF MASS