Coursera

A world-renowned online education platform, providing all kinds of free or paid courses and certificates. Here, you can learn various courses of world-famous universities and institutions, such as computer science, business management, humanities and social sciences, natural sciences, medicine and so on. Coursera's courses are very professional and systematic, which can help you better improve your professional ability and knowledge reserve!

Swift surface diagram

Quick Drawing is an online drawing tool, which supports the creation of flow charts, mind maps, organization charts and other types. Here I will focus on the mind map function, which is really super powerful! Support a variety of different layout styles, you can choose the appropriate layout according to your own needs. Provide a rich library of icons and themes, which users can use freely according to their own needs. Data is stored in the cloud to ensure data security!

Good cows live fast.

A free temporary large file transfer tool, the key is unlimited speed! There is no speed limit! There is no speed limit! And you don't need to download software, and you don't need to register and log in. You can use the free storage space of 10G cloud disk after registration, and the file links will be kept permanently, which is enough for the temporary storage of some large files.

The whole history

This website contains not only the history of the earth, but also the history of the whole universe. Today, from the birth of the universe to 100 billion years later, it has all been recorded according to the timeline, and knowledge such as music, art and current affairs has also been displayed according to the historical development and evolution. Friends who like history can go and have a look!

dry/air in the sun

A world-renowned platform for speech and thought sharing, with many wonderful speeches and opinions. You can hear the sharing of wise men, thinkers and innovators from all over the world, and understand the latest thinking and development trends in various fields. TED's speeches are often short, but rich in content, which can help people better understand the world and themselves.

sketch a design

An online design website, posters, new media maps, e-commerce design, H5 and other related graphic design can be completed on this website. You don't need any design foundation, just find your favorite template on the website, you can edit it online, and you can finish a poster in a few minutes, so that you can paint again in Dont Ask For Help!