Stericated 5-simplexes

Geometry - Ch. 1: Basic Concepts (26 of 49) Congruent Sides and Congruent Angles: Ex.

Visit http://ilectureonline.com for more math and science lectures! In this video I will explain how to identify quadrilaterals, triangles that are equilateral triangles, quadrilaterals that are also a square by by observing the angles, sides, and their congruences of the figures. Next v

From playlist GEOMETRY CH 1 BASIC CONCEPTS

Quaternions as 4x4 Matrices - Connections to Linear Algebra

In math, it's usually possible to view an object or concept from many different (but equivalent) angles. In this video, we will see that the quaternions may be viewed as 4x4 real-valued matrices of a special form. What is interesting here is that if you know how to multiply matrices, you a

From playlist Quaternions

Fourth Dimension rotation of 4D spheres, tetrahedrons, and cubes

Rotation of 4D tetrahedrons, tesseracts, and spheres. My Patreon account: https://www.patreon.com/EugeneK

From playlist Physics

Using a set of points determine if the figure is a parallelogram using the midpoint formula

👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of quadrilaterals are: parallelogram, square, rectangle, rhombus, kite, trapezoid, etc. Each of the types of quadrilateral has its properties. Given four points that repr

From playlist Quadrilaterals on a Coordinate Plane

Using the slope formula to determine if points make up a rectangle

👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of quadrilaterals are: parallelogram, square, rectangle, rhombus, kite, trapezoid, etc. Each of the types of quadrilateral has its properties. Given four points that repr

From playlist Quadrilaterals on a Coordinate Plane

Rational trigonometry, generalized triangle geometry and four-fold incenter symmetry

This is a seminar talk given to the School of Mathematics and Statistcs, UNSW in April 2013. It describes joint work with Nguyen Le on a generalized triangle geometry. We begin with an introduction to rational trigonometry--an approach to the subject that is almost purely algebraic, replac

From playlist MathSeminars

Determining if a set of points is a rhombus, square or rectangle

👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of quadrilaterals are: parallelogram, square, rectangle, rhombus, kite, trapezoid, etc. Each of the types of quadrilateral has its properties. Given four points that repr

From playlist Quadrilaterals on a Coordinate Plane

Drawing the 4th, 5th, 6th, and 7th dimension

How to draw 4, 5, 6, and 7 dimensional objects.

From playlist Physics

Chemistry 107. Inorganic Chemistry. Lecture 16

UCI Chemistry: Inorganic Chemistry (Fall 2014) Lec 16. Inorganic Chemistry -- Nature of the Adduct View the complete course: http://ocw.uci.edu/courses/chem_107_inorganic_chemistry.html Instructor: Matthew D. Law License: Creative Commons CC-BY-SA Terms of Use: http://ocw.uci.edu/info Mor

From playlist Chem 107: Week 6

Synthesis Workshop: Synthesis of Picrotoxinin and Picrotin with Dr. Steven Crossley (Episode 27)

In this Research Spotlight episode, Dr. Steven Crossley joins us to discuss his synthesis of (–)-picrotoxinin and (–)-picrotin, which was completed in the Shenvi group. Parent reference: J. Am. Chem. Soc. 2020, 142, 11376–11381. https://doi.org/10.1021/jacs.0c05042 Other references (in o

From playlist Research Spotlights

Synthesis Workshop: Meta-selective C-H Borylation with Dr. Tyler Pabst (Episode 106)

In this Research Spotlight episode, Dr. Tyler Pabst (alumnus of Chirik group at Princeton) joins us to share his work on meta-selective C-H borylation reactions enabled by cobalt catalysis. Key references: Organometallics 2021, 40, 813-831. https://doi.org/10.1021/acs.organomet.1c00030 J.

From playlist Special Topics: Organometallics

Organic Chemistry Exam 1 Review

This organic chemistry exam 1 review video discusses topics that are typically covered on the 1st exam in a college level organic chemistry course. Topics include IUPAC nomenclature, identifying functional groups, drawing Lewis structures, bond angles, hybridization, formal charge, resona

From playlist New Organic Chemistry Playlist

General Chemistry 1A. Lecture 10. Polarizing Power and Covalent Character.

UCI Chem 1A General Chemistry (Winter 2013) Lec 10. General Chemistry Polarizing Power and Covalent Character View the complete course: http://ocw.uci.edu/courses/chem_1a_general_chemistry.html Instructor: Amanda Brindley, Ph.D. License: Creative Commons BY-NC-SA Terms of Use: http://ocw.

From playlist Chem 1A: General Chemistry

CBS Reduction, Enantioselective Catalysis - Organic Chemistry, Reaction Mechanism

Another introductory video on enantioselective catalysis in Organic Chemistry. Here secondary ketones can be synthesised in high enantiomeric excess from the parent ketone by a CBS reduction reaction. Essentially the CBS reduction is a chiral version of the more familiar reagent sodium bor

From playlist Organic Chemistry Mechanisms

Determining if a set of points makes a parallelogram or not

👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of quadrilaterals are: parallelogram, square, rectangle, rhombus, kite, trapezoid, etc. Each of the types of quadrilateral has its properties. Given four points that repr

From playlist Quadrilaterals on a Coordinate Plane

CCHF-VS 3.2 | Prof. Rovis: Rh(III) Catalysis for C–H Activation

Learn about the new systems being developed in the Rovis Group and the catalysts being discovered

From playlist CCHF Virtual Symposia

E2 Reaction Mechanism - Hoffman Elimination vs Zaitsev's Rule

This organic chemistry video tutorial provides a basic introduction into the E2 reaction mechanism. The hoffman product is the least stable alkene and the zaitsev product is the most stable alkene. The hoffman product can be formed using a bulky base with a sterically hindered alkyl hali

From playlist New Organic Chemistry Playlist

Organic Chemistry 51A. Lecture 25. Elimination Reactions. Introduction to E2 Reactions. (Nowick)

UCI Chem 51A Organic Chemistry (Fall 2009) Lec 25. Organic Chemistry Elimination Reactions -- Introduction to E2 Reactions View the complete course: http://ocw.uci.edu/courses/chem_51a_organic_chemistry.html Instructor: James Nowick, Ph.D. License: Creative Commons BY-NC-SA Terms of Use:

From playlist Chem 51A: Organic Chemistry

Synthesis Workshop: Pd-catalyzed Carbohalogenation of Alkynes with Prof. Christine Le (Episode 41)

In this episode, we are joined by Prof. Christine Le, who shares with us her doctoral work on carbohalogenation of alkynes. References: Negishi, E.-i.; Copéret, C.; Ma, S.; Liou, S.-Y. ; Liu, F. Chem. Rev. 1996, 96, 365. Newman, S. G.; Lautens, M. J. Am. Chem. Soc. 2011, 133, 1778. Le, C

From playlist Special Topics: Organometallics

The projective Quadruple quad formula | Rational Geometry Math Foundations 148 | NJ Wildberger

In this video we introduce the projective version of the Quadruple quad formula, which not only controls the relationship between four projective points, but has a surprising connection with the geometry of the cyclic quadrilateral. The projective quadruple quad function is called R(a,b,

From playlist Math Foundations