The density of the fluid on the surface allows the visibility of soft structures that a radiograph would not normally image in detail. X-rays do not penetrate denser matter as effectively as soft tissues. Hence, bones and areas where the iodine is present appear white; the detector plate of the machine receives fewer x-rays in these regions.

The father of video games, Ralph H. Baer, has passed away at age 92. He came to rest in his New Hampshire home on the night of Saturday, Dec. 6 according sources close to him and a Facebook post by video game historian Leonard Herman, a friend of Baer. Dubbed the "Thomas Edison of the home TV game" by Popular Electronics Magazine in 1980, Baer's Odyssey game system was the first home video game system. The patent for the idea was filed on August 10, 1970 and the system was released by Magnavox.

New technologies are helping people rewire their senses. Already, some people have listened to music with their teeth, heard colour or enlisted their tongue to see the world around them.

Girls don’t like robots. Fredi Lajvardi heard that a lot. As a high school science teacher in urban Phoenix, he ran into roadblocks whenever he tried to recruit girls to the school’s robotics...

Tonight at The Game Awards, The Legend of Zelda for Wii U was confirmed to be released in 2015. Star Fox will come before Zelda Wii U and Majora's Mask for 3DS will come before that. Majora's...

Virtual reality makes me sick. It starts with a feeling of dehydration soon after the goggles go on, followed by sweating—and by that point it's too late to avoid the real unpleasantness. This isn't supposed to happen anymore. Backers believe the motion-sickness problem has been solved, finally clearing the way for widespread adoption of VR technology.

The robots will rise, we’re told. The machine will assume control. For decades we have heard these warnings and fears about artificial intelligence taking over and ending humankind.

From 2.9 billion miles away, NASA's New Horizons spacecraft let its handlers know on Saturday that it has awakened from hibernation and is ready for the climax of its nine-year trip to Pluto.

IN the 1985 film Back to the Future, Marty McFly travelled into the past, to 1955, to save his parents’ marriage. Four real-world years later — but mere minutes after returning to 1985 for Marty — in 1989’s Back to the Future Part II, Emmett “Doc” Brown arrived with urgent news: Marty must travel to the future to save his kids. So Marty and Doc jumped into the DeLorean and set the time circuits for 30 years hence: Wednesday, October 21, 2015.

The video shows 15 different variations of one computational growth process. Based on this process we created a series of 3D printed wearables in cooperation with Prof. Neri Oxman from the MIT Media Lab.

It's creepy how real they look.

An HIV doctor offers help with a difficult decision.

Multimedia artist

Keynote speaker Matt Inman introduces us to a new deity, enlightening the the San Francisco audience in the process, in the first ever BAHFest West keynote at the historic Castro Theatre. BAHFest is the Festival of Bad Ad Hoc Hypotheses, a celebration of well-researched, logically explained, and clearly wrong evolutionary theory.

Excerpted from Hand to Mouth: Living in Bootstrap America by Linda Tirado. Out now from Putnam. I once lost a whole truck over a few hundred bucks.

When the Apollo astronauts returned to Earth, they brought with them some souvenirs: rocks, pebbles, and dust from the moon's surface. These lunar samples have since been analyzed for clues to the moon's past. One outstanding question has been whether the moon was once a complex, layered, and differentiated body, like the Earth is today, or an unheated relic of the early solar system, like most asteroids.

After 22 years of raising chickens for Perdue, one brave factory farmer Craig Watts was at his breaking point and did something no one has done before. He invited us, as farm animal welfare advocates, to his farm to film and tell his story.

He's back. Watch the new Terminator Genisys trailer starring Arnold Schwarzenegger.

NASA rover Curiosity is beavering away up on Mars, examining rocks, drilling holes, checking out the weather -- but it's not just up there to look at the planet's hospitability for humans. It's also looking for conditions favourable for life; not now, but in the past, when Mars may have been home to extraterrestrial microbes. But maybe the answer is right here on Earth, after all -- in the form of a meteorite.

If you’ve spent more than about 5 minutes surfing the web, listening to the radio, or watching TV in the past few years, you will know that cognitive training—better known as “brain training”—is one of the hottest new trends in self improvement. Lumosity, which offers web-based tasks designed to improve cognitive abilities such as...

As NASA prepares for the debut test flight of the first spaceship in more than 40 years to carry astronauts beyond Earth, a fleet of privately owned vehicles is in development to take over transportation services to and from orbits closer to home.

External Stimuli Uri Shapira (artist).

If you're watching this channel, you already think that gaming is pretty great. But you probably don't realize how great. Games can improve empathy, motor skills, eye sight (yes even EYE SIGHT!!), as well as help decrease fatigue, depression, and manage anxiety. And that's only a fraction of their awesomeness!!! SO we've collected a bunch of arguments you can lob at anyone who tells you to stop playing so much.

Consciousness is the ‘hard problem’, the mystery that confounds science and philosophy. Has a new theory cracked it?

Technology has changed rapidly over the last few years with touch feedback, known as haptics, being used in entertainment, rehabilitation and even surgical training. New research, using ultrasound, has developed an invisible 3-D haptic shape that can be seen and felt.

Catch up with your favorite characters with this exclusive sneak peek from Better Call Saul. Don't miss the two-night series premiere of Better Call Saul, starting Sun., February 8th at 10/9c, with the second episode airing Mon., February 9th at 10/9c.

Controversy over what is happening at the centre of our Galaxy has taken a new twist. The team that discovered an object labelled G2 are still insisting it is a gas cloud, but that it is even bigger than thought before.

What started as a near million dollar Kickstarter, was transformed into one of the most disastrous product launches of all time. Not only did Logbar release a terribly unattractive and poorly designed piece of hardware, but the software puts a nail in the coffin. For the outrageous $269 price tag, Logbar won't be around long.

While you were eating turkey, we were busy rummaging around the internet and adding new courses to our big list of Free Online Courses, which now features 1,100 courses from top universities. Let's give you the quick overview: