What's new

Earn XP for finishing questions, right answers, completed lectures, mocks, daily goals and streaks. Level up from Fresher to Professor and spend coins on avatar frames, forum titles, name colours, confetti and backgrounds.

The polls, quick checks and try-this problems the lecturers set in the slides, with worked answers and hints. Find them under "From lecture slides" in each week of the question bank.

Signed-in accounts can pick an accent colour, gradient or pattern background, font and text size in Settings.

Type answers and pick multiple-choice options as you go, get them marked at hand-in, and keep every result with its grade to look back over. Formula sheets are linked at the top.

Post a link to a mock or question straight from the forum box, and add emoji.

Weeks and question types fold away so you can jump to the week you want. Questions open on click.

Sudoku, Stacker, Groups, 2048 and Minesweeper, from easy to expert, under Tools.

All 371 questions now have a general hint and a more specific first step.

A study timer in the header, profile avatars and display names, and email reminders before deadlines.

Worked examples from the lecture decks for control, thermo, dynamics and statics, plus old-spec heat transfer papers.