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I love it when people use Sketchplanations. Please respect the licence when you share so more people can find sketches they like too.
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  <p class="text-center">The images and associated explanatory text on this website are licensed under a <a rel="license" href="http://creativecommons.org/licenses/by-nc/4.0/">Creative Commons Attribution-NonCommercial 4.0 International License</a></p>
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In short, you're free to share any sketches but not sell them. You must include the source. Adding a link to the site or tagging a relevant social profile is extra helpful.

It's great when people share Sketchplanations, so please use sketches to illustrate your points in:

...as long as you give credit. In fact, I'd love you to use them to make a point, help explain something for others, further your career, or teach something to your students. That's what they're for!

Can I use them in my article, newsletter, presentation, LinkedIn post, Instagram business post, Medium post, or course? (or the like)

Yes. Please include the source. Because content is often reshared, I prefer that you don't remove the Sketchplanations logo from the sketches.

If you can add a link, i.e. it's online, this works well, I think:

...ideally with the word Sketchplanations linking to the sketch page as it appears on the site, e.g. to https://sketchplanations.com/the-overview-effect

If you can't add a link, for example, because it's in a book or flyer, then this works well:

Context matters when adding sources, so please make it work for you.

Can I translate them and share them in my language?

Yes, please! Make sure to include the original source as above.

Probably, yes. But please contact me for this, as some sketches have restrictions for printed collections after Big Ideas Little Pictures was launched with my publisher. I expect your publisher may want an image permission request signed in any case.

To keep records of permissions, please complete and email to me this Image Consent Form

If you're thinking of publishing a collection with many sketchplanations, reselling them, or some giant marketing campaign, billboard, selling prints or the like, please contact me at hello@sketchplanations.com, and we can discuss it.

Do you have high-resolution versions I can use?

Yes. You can use the download link underneath the sketch content on this site to get higher-resolution images if you need them.

Some older sketches may only give slightly higher resolutions when you download them. Feel free to contact me (hello@sketchplanations.com)—I will likely have a higher-res version.

Do you have an Image Consent Form I can complete?

Why, yes! Find it here: Image Consent Form

I'm still not sure whether my use case is OK. What should I do?

Contact me at hello@sketchplanations with what you're planning, and I can let you know.

If the sketches have helped you, great! If you're in a position to support me on Patreon for a time or buy me a coffee, it really helps, but it's not required. You can also contribute when downloading a high-resolution version if you choose. (OK, perhaps this isn't as frequently asked)

Good question. See here: https://sketchplanations.com/advise-vs-advice

Licence

Sonic booms are the noise heard when an object travels at or faster than the speed of sound.

As an object travels through the air it pushes air out of the way creating a shockwave — like the wake of a boat. If you were traveling fast in a plane you can imagine that as the shockwaves move away from you at the speed of sound (around 340 m/s), because you're traveling too, the ones in front of you compressed together a little.

As you reach the speed of sound, you're now traveling as fast as the shockwaves and they all bunch up forming a strong pressure wave.

An object traveling faster than the speed of sound leaves its shockwaves behind it in a cone-shape called a Mach cone after Ernst Mach.

To an observer on the ground the sudden change in pressure as the pressure wave passes is experienced as a loud boom.

There's quite a lot of subtlety to sonic booms and we're still researching technology to reduce them to make faster than sound travel less, well, noisy.

Sonic boom

Great to have you onboard! Look out for my emails each week.

Learn something new in a sketch each Sunday