Online courses directory (771)

Sort by: Name, Rating, Price
Start time: Any, Upcoming, Recent started, New, Always Open
Price: Any, Free, Paid
Starts : 2017-05-01
527 votes
edX Free Closed [?] Computer Sciences English ColumbiaX Computer Science EdX

What do self-driving cars, face recognition, web search, industrial robots, missile guidance, and tumor detection have in common?

They are all complex real world problems being solved with applications of intelligence (AI).

This course will provide a broad understanding of the basic techniques for building intelligent computer systems and an understanding of how AI is applied to problems.

You will learn about the history of AI, intelligent agents, state-space problem representations, uninformed and heuristic search, game playing, logical agents, and constraint satisfaction problems.

Hands on experience will be gained by building a basic search agent. Adversarial search will be explored through the creation of a game and an introduction to machine learning includes work on linear regression.

333 votes
Khan Academy Free Popular Closed [?] Computer Sciences Advanced Cryptography Ancient Cryptography Applied Math Cryptography

Explore how we have hidden secret messages through history. What is Cryptography?. Probability Space. The Caesar Cipher. Polyalphabetic Cipher. The One-Time Pad. Frequency Stability. The Enigma Encryption Machine (case study). Perfect Secrecy. Pseudorandom Number Generators.

Starts : 2013-09-16
290 votes
Coursera Free Popular Closed [?] Social Sciences English Humanities

This course will examine the ways in which the world has grown more integrated yet more divided over the past 700 years.

Starts : 2015-09-22
286 votes
Coursera Free Popular Social Sciences English Humanities

The purpose of this course is to summarize new directions in Chinese history and social science produced by the creation and analysis of big historical datasets based on newly opened Chinese archival holdings, and to organize this knowledge in a framework that encourages learning about China in comparative perspective.

126 votes
Khan Academy Free Closed [?] Social Sciences 1500-1600 End of the Renaissance and the Reformation Art History

If there was one century in the past that saw radical changes in established ways of thinking comparable to the 20th Century, it would be the 16th. Before this, in Western Europe, there was only one type of Christianity

123 votes
Khan Academy Free Closed [?] Social Sciences Before 1300: Ancient and Medieval History World History

Sumerian Art: Standard of Ur. Ptolemaic: Rosetta Stone. Ancient Rome. Ara Pacis. Sutton Hoo Ship Burial. Charlemagne: An Introduction (1 of 2). Charlemagne and the Carolingian Revival (part 2 of 2). Coronation Mantle. Sumerian Art: Standard of Ur. Ptolemaic: Rosetta Stone. Ancient Rome. Ara Pacis. Sutton Hoo Ship Burial. Charlemagne: An Introduction (1 of 2). Charlemagne and the Carolingian Revival (part 2 of 2). Coronation Mantle.

Starts : 2014-01-14
122 votes
Coursera Free Closed [?] Social Sciences English Humanities

This is a survey of modern history from a global perspective. It begins with the revolutions of the late 1700s, tracks the transformation of the world during the 1800s, and analyzes the cataclysms of last century, concluding with the new phase of world history we are experiencing today.

117 votes
Khan Academy Free Closed [?] Social Sciences 1800-1848 Industrial Revolution I Art History

With the failure of the French Revolution (Napoleon crowned himself Emperor, and after his defeat, a King was restored to power in France), there was a turn away from public, political life, toward personal, subjective experience. In large part, this turn characterizes the new style of Romanticism (don

116 votes
Khan Academy Free Closed [?] Social Sciences 1600-1700 The Baroque Art History

The 17th Century is the era of the Baroque style, characterized by energy, drama, and movement. The Church in Rome needed art that spoke to its resurgent power even as the conflict between Protestant and Catholics continued. A new realism

115 votes
Khan Academy Free Closed [?] Social Sciences 1300-1400 Proto-Renaissance Art History

This is a transitional period. In the art of Florence and Siena there is a move away from medieval abstract depictions of space and the human body as artists began to focus on the illusion of mass and space and the expression of human emotion. With hindsight, it is possible to trace elements of Renaissance art back to this period. This century saw the creation of the beautiful poetry of Dante and Petrarch, but it is also the century that saw the worst outbreak of the Bubonic plague (known then as the Black Death) which wiped out close to half the population of Europe

114 votes
Khan Academy Free Closed [?] Social Sciences - 400 C.E. Ancient Cultures Art History

Augustus of Primaporta. Painted Garden, Villa of Livia. Head of Augustus. Sculpture from the Parthenon's East Pediment. Victory Stele of Naram-Sin. Ancient Greek Temples at Paestum, Italy. Dying Gaul. Ara Pacis. The Standard of Ur. Dionysiac frieze, Villa of Mysteries, Pompeii. East and West Pediments, Temple of Aphaia, Aegina. Colosseum. Myron, Discobolus (Discus Thrower), Roman copy of an ancient Greek bronze from c. 450 B.C.E.. Nike of Samothrace. Law Code Stele of King Hammurabi . The Pergamon Altar. Arch of Titus. Great Lyre from the "King's Grave" at Ur. Hadrian's Villa: A Virtual Tour. Parthenon Frieze. Maritime Theatre at Hadrian's Villa, Tivoli. Neo-Assyrian Art: Human Headed Winged Lion and Bull (Lamassu). The Parthenon: Metopes. Pair of Centaurs Fighting Cats of Prey from Hadrian's Villa. Mixing Vessel with Odysseus Escaping from the Cyclops' Cave. Erechtheion: Caryatid and Column. Column of Trajan. Ishtar Gate and Processional Way . Medea Sarcophagus, 140 - 150 C.E.. Equestrian Sculpture of Marcus Aurelius. Ludovisi Battle Sarcophagus. After Praxiteles, Venus (Roman Copy). Apollonius, Boxer at Rest, c. 100 B.C.E.. Nude Woman (Venus of Willendorf). Seated Scribe. Arch of Constantine. Digging Through Time. Thutmose's Bust of Nefertiti. House Altar with Akhenaten, Nefertiti and Three Daughters. Ramesses II. Alexander Mosaic. The Colossus of Constantine. Rosetta Stone. Hellenistic Art at the Metropolitan: Eros Sleeping and An Old Market Woman. Bodhisattva from China. Geometric Greek Krater. Exekias, Attic black figure amphora with Ajax and Achilles playing a game. Buddha of Medicine Bhaishajyaguru (Yaoshi fo). Polykleitos, Doryphoros (Spear-Bearer). Barberini Faun, c. 220 B.C.E.. New York Kouros. Japan, Muromachi to Momoyama period Negoro ware ewer. Ancient Rome. Temple of Portunus. The Pantheon, Rome.

Starts : 2015-02-02
110 votes
Coursera Free Social Sciences English Audio Film Humanities Music

This Film History course explores how fundamental changes in film technology affected popular Hollywood storytelling. We will consider the transition to sound, and the introduction of color. This online educational experience is not equivalent to a college course.

Starts : 2015-10-05
110 votes
Coursera Free Closed [?] Computer Sciences English Computer Science Information Systems & Security Tech & Design

What is the Internet? How was it created? How does it work? How do we secure communications on the Internet?

109 votes
Khan Academy Free Closed [?] Mathematics Applied Math Information Theory

The math behind human, animal and machine communication. What is Information Theory?. Prehistory: Proto-writing. Ptolemaic: Rosetta Stone. Ancient History: The Alphabet. Source Encoding. Visual Telegraphs (case study).

108 votes
Khan Academy Free Closed [?] Social Sciences 400-1300 Medieval Era Art History

Birth of the Gothic: Abbot Suger and the Ambulatory at St. Denis. Two Royal Figures (Saljuq Period). Last Judgment Tympanum, Cathedral of St. Lazare, Autun. Sutton Hoo Ship Burial. Virgin from Ger. Wise and Foolish Virgins, Sant Quirze de Pedret. Coronation Mantle. Sarcophagus of Junius Bassus. Basilica of Santa Prassede (Praxedes). Santa Sabina. Byzantine Art: Justinian and His Attendants. Historiated Capitals, Church of Sant Miquel, Camarasa (Noguera). Santa Maria Maggiore. Ivory panel with Archangel. Berlinghieri's St. Francis Altarpiece. Cathedral of Notre Dame de Chartres. Ilkhanid Mihrab. Hebrew Astrolabe. Pre-Columbian Cup.

107 votes
Khan Academy Free Closed [?] Physical Sciences Cosmology and Astronomy

Videos attempting to grasp a little bit about our Universe (many of the topics associated with "Big History"). Scale of Earth and Sun. Scale of Solar System. Scale of Distance to Closest Stars. Scale of the Galaxy. Intergalactic Scale. Hubble Image of Galaxies. Big Bang Introduction. Radius of Observable Universe. (Correction) Radius of Observable Universe. Red Shift. Cosmic Background Radiation. Cosmic Background Radiation 2. Cosmological Time Scale 1. Cosmological Time Scale 2. Four Fundamental Forces. Birth of Stars. Becoming a Red Giant. White and Black Dwarfs. A Universe Smaller than the Observable. Star Field and Nebula Images. Parallax in Observing Stars. Stellar Parallax. Stellar Distance Using Parallax. Stellar Parallax Clarification. Parsec Definition. Hubble's Law. Lifecycle of Massive Stars. Supernova (Supernovae). Supernova clarification. Black Holes. Cepheid Variables 1. Why Cepheids Pulsate. Why Gravity Gets So Strong Near Dense Objects. Supermassive Black Holes. Quasars. Quasar Correction. Galactic Collisions. Earth Formation. Beginnings of Life. Ozone Layer and Eukaryotes Show Up in the Proterozoic Eon. Biodiversity Flourishes in Phanerozoic Eon. First living things on land clarification. Plate Tectonics-- Difference between crust and lithosphere. Structure of the Earth. Plate Tectonics -- Evidence of plate movement. Plate Tectonics -- Geological Features of Divergent Plate Boundaries. Plate Tectonics-- Geological features of Convergent Plate Boundaries. Plates Moving Due to Convection in Mantle. Hawaiian Islands Formation. Compositional and Mechanical Layers of the Earth. Seismic Waves. Why S-Waves Only Travel in Solids. Refraction of Seismic Waves. The Mohorovicic Seismic Discontinuity. How we know about the Earth's core. Pangaea. Scale of the Large. Scale of the Small. Detectable Civilizations in our Galaxy 1. Detectable Civilizations in our Galaxy 2. Detectable Civilizations in our Galaxy 3. Detectable Civilizations in our Galaxy 4. Detectable Civilizations in our Galaxy 5. Human Evolution Overview. Understanding Calendar Notation. Correction Calendar Notation. Development of Agriculture and Writing. Introduction to Light. Seasons Aren't Dictated by Closeness to Sun. How Earth's Tilt Causes Seasons. Milankovitch Cycles Precession and Obliquity. Are Southern Hemisphere Seasons More Severe?. Precession Causing Perihelion to Happen Later. What Causes Precession and Other Orbital Changes. Apsidal Precession (Perihelion Precession) and Milankovitch Cycles. Firestick Farming. Carbon 14 Dating 1. Carbon 14 Dating 2. Potassium-Argon (K-Ar) Dating. K-Ar Dating Calculation. Chronometric Revolution. Collective Learning. Land Productivity Limiting Human Population. Energy Inputs for Tilling a Hectare of Land. Random Predictions for 2060.

107 votes
Khan Academy Free Closed [?] Social Sciences 1907-1960 Age of Global Conflict Art History

An Introduction to Contemporary Art. Why is this Art? Andy Warhol, Campbell's Soup Cans. Art as Concept: In Advance of the Broken Arm. Why Is That Important? Looking at Jackson Pollock. Art & Context: Monet's Cliff Walk at Pourville and Malevich's White on White. Representation & Abstraction: Millais's Ophelia and Newman's Vir Heroicus Sublimis. Interpreting Contemporary Art. Big Questions in Modern & Contemporary Art. Matisse, Luxe, calme et volupt

106 votes
Khan Academy Free Closed [?] Social Sciences 1400-1500 Renaissance in Italy and the North Art History

This is the century that sees the full realization of the Renaissance and the end of the medieval way of thinking about the world. The Humanist rediscovery of ancient Greek and Roman culture is supported by the wealth accumulated in prosperous cities such as Bruges, Florence, and Venice. New wealth and increasing trade created a demand for an art based on the world we see. The second half of the century saw the invention of the printing press, and Columbus

Starts : 2015-04-13
105 votes
Coursera Free Health and Welfare English Health & Society Medicine

This course will discuss issues regarding vaccines and vaccine safety: the history, science, benefits, and risks of vaccines, together with the controversies and common questions surrounding vaccines, and an update on newly created vaccines and recent outbreaks of previously controlled diseases.

105 votes
Udacity Free Closed [?] Computer Sciences Software Engineering

Artificial Intelligence (AI) is a field that has a long history but is still constantly and actively growing and changing. In this course, you’ll learn the basics of modern AI as well as some of the representative applications of AI. Along the way, we also hope to excite you about the numerous applications and huge possibilities in the field of AI, which continues to expand human capability beyond our imagination. ***Note: Parts of this course are featured in the Machine Learning Engineer Nanodegree and the Data Analyst Nanodegree programs. If you are interested in AI, be sure to check out those programs as well!***