I Learned This Today

#1108 How does a CT scan work?

How does a CT scan work? A CT scan uses x-rays and computer software to produce a 2D or a 3D image […]

How does a quantum computer work? They use subatomic particles, which can exist in more than one state at the same time. […]

How does autofocus work? Active autofocus works by calculating the distance to the object and passive autofocus works by using contrast sensors […]

How many servers are in a data center? It depends on the company and the type of server, but the average data […]

What is Bitcoin? It is the original, and the most famous, digital currency. Let’s look at what Bitcoin is, why it was […]

Ron Rivest, Adi Shamir, and Leonard Adleman were the creators of the RSA encryption that we use many times, possibly hundreds of […]

Do the three laws of robotics need updating? The three laws of robotics were an invention by Isaac Asimov and they were […]

How does a TV screen display different colors? By using different intensities of red, green, and blue. These colors can be displayed […]

What is flash memory? It is a type of memory that can store data without power and can erase memory in blocks. […]

What is an algorithm? An algorithm is a set of instructions to solve a particular problem. The word algorithm came into English […]