Courses from 1000+ universities
AI got cheap enough that Duolingo’s most expensive plan may not survive it. I read the earnings call transcript and opened the app to see what is actually changing for learners.
600 Free Google Certifications
Artificial Intelligence
IT & Networking
Software Engineering
Supporting Victims of Domestic Violence
Know Thyself - The Value and Limits of Self-Knowledge: The Examined Life
Understanding Dementia
Organize and share your learning with Class Central Lists.
View our Lists Showcase
A neurobiology and AI talk on how brains develop intelligence, comparing biological growth, learning algorithms, neural network history, and the limits of training.
A geneticist argues that humanity has a moral duty to explore other worlds and proposes reengineering human biology for sustainable life beyond Earth.
How modern science’s power may depend on breaking rules of logical argument and cultivating an intellectual blind spot.
Explore how neurotransmitters shape memory, emotions, sleep, decision-making, behavior, and survival drives.
An ethnographic look at how forensic scientists translate laboratory findings into courtroom proof while navigating pressure and tensions between science and law.
Explore how empathy, inspiration, and creative thinking can transform datasets into more effective data visualisations than standard charts.
An exploration of how viruses emerge into pandemics and how immunity, diagnostic tests, vaccines, and antiviral therapies respond.
A conversation tracing humanity’s quest to understand the universe from its beginning and eventual end, through entropy, consciousness, quantum mechanics, and science.
Explores how modern life affects mental health and what happens in the brain during anxiety, depression, and addiction.
Explore how machine-learning systems go wrong, from biased data and unfair predictions to reward design and the AI alignment problem.
Explore how climate models represent change, use observations and uncertainty, and inform adaptation, mitigation, and decarbonisation decisions.
Trace nerve agents from their 1930s invention through chemical warfare, global proliferation, arms races, and the 2018 Novichok attack.
A Nobel laureate explores how time, space, matter, energy, complexity, and complementarity shape our understanding of reality.
A scientific exploration of how chance, mutation, fertilization, and mass extinction shape life’s diversity and challenge the idea that everything happens for a reason.
Explore how batteries work, why new chemistries are needed, and how researchers are developing safer, more powerful, sustainable designs.
Get personalized course recommendations, track subjects and courses with reminders, and more.