How to implement Hamming Codes with xors

Why does alcohol cause that burning sensation on its way down?

Here we break down Asymmetric crypto and more.

Hank and Phil Plait dive deep into questions about gametes and sea mammals in this episode of SciShow Quiz Show!

A refugee now living in the US, Joseph Kim tells the story of his life in North Korea during the famine years. He's begun to create a new life -- but he still searches for the family he lost.

Le grand pouvoir des petits dessins



Les dessins sont un langage universel que tout le monde peut comprendre, affirme dessinateur connu sous le nom de "Aster". Joignez Aster pendant qu'il nous démontre comment les...

Keeping our data safe and secure is necessary in today's world, but a lot of the encryption we depend on has been in development for thousands of years!

Paul Andersen describes how cell communication is used in both single-celled and multicellular organisms. He starts by describing the symbiotic relationship between the bobtail squid and the bacteria Vibrio fisheri. He explains how...

Paul Andersen explains a viral replication simulation that he created for his AP Biology class. He used Google docs to keep track of viral strains, Moodle messaging to pass the virus from student to student, and dice to generate...

We can see the power of distributed, crowd-sourced business models every day — witness Uber, Kickstarter, Airbnb. But veteran online activist Jeremy Heimans asks: When does that kind of "new power" start to work in politics? His...

In the 1970s, astronomers Carl Sagan and Frank Drake developed the first messages intentionally sent out of our solar system. But how do you describe yourself to beings who have no concept of life on Earth?

With its ability to make boring cellphone photos look "vintage" and "artsy", the mobile application Instagram has exploded worldwide. Derided by its detractors as a tool for making bad photos worse, we take an alternate view and argue...

When a young woman texted DoSomething.org with a heartbreaking cry for help, the organization responded by opening a nationwide Crisis Text Line for people in pain. Nearly 10 million text messages later, the organization is using the...

In "THE 99," Naif Al-Mutawa's new generation of comic book heroes fight more than crime -- they smash stereotypes and battle extremism. Named after the 99 attributes of Allah, his characters reinforce positive messages of Islam and cross...

The UN's Intergovernmental Panel on Climate Change released the final part of its sixth assessment report. In it, they steer away from the gloom and doom and remind us of a future that's still remarkably possible.

When a piece of cryptography is described as having "256-bit security", what exactly does that mean? Just how big is the number 2^256?

Sending an email message is like sending a postcard, says scientist Andy Yen in this thought-provoking talk: Anyone can read it. Yet encryption, the technology that protects the privacy of email communication, does exist. It's just that...

You might want to hold off on sending your family's secret chili recipe across the internet to your family member who lives out of state. Researchers are working on a way to harness quantum weirdness to send information super securely!

McKenna Pope's younger brother loved to cook, but he worried about using an Easy-Bake Oven -- because it was a toy for girls. So at age 13, Pope started an online petition for the American toy company Hasbro to change the pink-and-purple...

Artist Uldus Bakhtiozina uses photographs to poke fun at societal norms in her native Russia. A glimpse into Russian youth culture and a short, fun reminder not to take ourselves too seriously.

Childhood is surreal. Why shouldn't children's books be? In this whimsical talk, award-winning author Mac Barnett speaks about writing that escapes the page, art as a doorway to wonder -- and what real kids say to a fictional whale.

You may remember neuroscientist Miguel Nicolelis — he built the brain-controlled exoskeleton that allowed a paralyzed man to kick the first ball of the 2014 World Cup. What’s he working on now? Building ways for two minds (rats and...

Paul Andersen explains how organisms use information to communicate with each other. Signals are used by bees doing the waggle dance to communicate the location of flowers. Territorial markings are used by wolves to establish...

Conflict and cultural clashes are a part of our global reality, but so is the universal desire for peace. From Bangladesh to Myanmar to Lesotho, discover this inspiring common sentiment in traditional greetings of peace.