Courses from 1000+ universities
$7.2 billion in combined revenue since 2020. $8 billion in lost market value. This merger marks the end of an era in online education.
600 Free Google Certifications
Machine Learning
Python
Microsoft Excel
Intelligenza Artificiale
Python for Data Science
Introduction to Philosophy
Organize and share your learning with Class Central Lists.
View our Lists Showcase
Detailed restoration of a 1910s saw blade filer, showcasing disassembly, repairs, machining new parts, and reassembly. Highlights the tool's history and intricate mechanics.
Dive into the meticulous restoration of a 1920s Coldwell lawn mower, exploring repair techniques, challenges faced, and the final results of this vintage machine's revival.
Restore a rare 1920s Fuller and Johnson engine from a Coldwell lawn mower, overcoming challenges with piston rings, carburetor float, and magneto to bring this antique powerplant back to life.
Dive into the restoration process of a 1960s Wellsaw 400 meat saw, preserving its sentimental value while making it functional again, including a practical demonstration cutting chicken.
Discover if century-old tomato seeds can still germinate and grow into viable plants through this fascinating seed viability experiment with rare 1926 Stark's Blight Resister variety.
Discover how to recreate a rare 1904 "toboggan" hand plane through forging techniques, using mild and high carbon steel to manufacture a durable woodworking tool based on historical patents and photographs.
Discover how to recreate and upscale a unique 1910 adjustable wrench patent featuring innovative swing-out shims for precise fastener fitting in this detailed metalworking project.
Dive into the restoration process of a 1920s Chicago No.11 letterpress, from repairing broken cast iron to recreating vintage decals and printing authentic business cards using original lead type.
Discover the intricate process of machining a unique claw hammer with a socket head from 4140 steel, exploring why traditional forging methods remain superior.
Get personalized course recommendations, track subjects and courses with reminders, and more.