MinutePhysics explains how galaxies are formed and where they came from. The video also quickly covers how humans are able to observe things like stars and galaxies forming over millions of years even though telescopes have only been around for a few hundred years.
Perfect proportions observed in nature often follow the theory of the golden section. The golden section is the ratio between the dimensions of natural and geometric forms. Historically, artists, designers and architects have used it as a means of defining beauty in a theoretical rather than intuitive way. Use the Golden Section Finder, a pocket sized gazing device, to locate the proportional perfection in your surroundings.
YouTube creator CaptainSparklez (Jordan Maron) demonstrated a working cellphone capable of making video calls and browsing the web created in Minecraft. Maron demonstrates how to construct the phone and the required in-game cell tower before using the virtual device to browse the internet and make video calls from inside the game out to the real world.
The project was a collaboration with Verizon, who initially posted a repository for the project on Github, but those files have since been pulled.
In an episode of his Things You Might Not Know series, Tom Scott revealed that nobody is exactly sure how much a kilogram weighs right now. That’s because the system used to measure things internationally is based on a physical standard, but as Scott explains, scientists are working towards a better and more absolute solution.
Yes, it’s only micrograms of difference, but it’s still really weird: until 2018, the kilogram is defined as “the weight of this physical object”. So what happens when that object changes?
The American Chemical Society series Reactions took a close-up slow-motion look at the chemistry of sparklers for the Fourth of July. The video shows a sparkler in action while the narrator explains the different chemicals at work in the reaction.
Compound Interest created an infographic that shows the different chemicals used in sparklers as metallic fuels, oxidizers, binders, and colorants.
The Awamoko 3D Foam Pen is a 3D-printing pen that uses soap bubbles to create fluffy art. The kit comes with a set of decorations, different heads for creating shapes with the foam, as well as tools for shaping the bubbles. The pen is available now for preorder through Japan Trend Shop and is expected to be available on July 15, 2016.
If you’ve been seeing selfies enhanced with dog noses and flower crowns lately, and you wondered where they all came from, the answer is Snapchat, the social network preferred by people born during or after the (sigh) 1990s. The mobile app allows people to look into a magic mirror of sorts by altering and enhancing their faces in real time with a different set of filters every day. In this video, we explain how the technology works.