Match Pyramid Chain Reaction

February 27, 2015

Fire is combustion or burning, in which substances combine chemically with oxygen from the air and typically give out bright light, heat, and smoke. A match is a tool for starting a fire.

Check out a match pyramid made of 5000 matches. Watch the chain reaction intensify as a wave of fire spreads over the pyramid. It took over 10 hours to build and 10 seconds to destroy!

Stacked Ball Drop

February 27, 2015

What happens when you drop a perfectly balanced stack of balls? And how is the result like a supernova?

Watch to find out …

The case for emotional hygiene

February 22, 2015

We’ll go to the doctor when we feel flu-ish or a nagging pain. So why don’t we see a health professional when we feel emotional pain: guilt, loss, loneliness? Too many of us deal with common psychological-health issues on our own, says Guy Winch. But we don’t have to. He makes a compelling case to practice emotional hygiene — taking care of our emotions, our minds, with the same diligence we take care of our bodies.

DNA may make the ultimate time capsule

February 16, 2015

If you must preserve messages for people in the far future to read, Blu-ray discs and USB sticks are no good. For real long-term storage, you want a DNA time capsule.

DNA time capsule

Just 1 gram of DNA is theoretically capable of holding 455 exabytes – enough for all the data held by Google, Facebook and every other major tech company, with room to spare. It’s also incredibly durable: DNA has been extracted and sequenced from 700,000-year-old horse bones. But conditions have to be right for it to last.

Research suggests that data in DNA form could last 2000 years if kept at a temperature of around 10 °C. The Global Seed Vault in the Arctic could preserve it for over 2 million years at a chilly -18 °C, offering truly long-term storage. Learn more here.

Sonic boom

February 14, 2015

Objects that fly faster than the speed of sound (like really fast planes) create a shock wave accompanied by a thunder-like noise: the sonic boom.

The secret behind the sound: Why popcorn ‘pops’

February 11, 2015

Researchers know why popcorn kernels burst open, but they’ve long puzzled over the source of the “pop” sound. When popcorn heats up, the moisture inside turns into steam, building up pressure until the hull splits and fluffy white corn bursts out, often as the kernel sails into the air. The pop, slow-motion videos reveal, happens out of sync with the hull’s rupture and the corn’s launch into the air, eliminating two possible explanations for the noise. That left one remaining cause: The sound comes from the release of water vapor as the kernel opens. Learn more here.

Amazing octopus camouflage

February 8, 2015

Organisms that have an adaptation to blend into their environment or conceal their shape are cool!

It’s called camouflage and prey animals (animals that get eaten) have the adaptation to avoid being seen by predators (animals that eat them).

Camouflage is really interesting!

Here is a fine example …

If you liked that check this out.

Riding Light Through our Solar System

February 5, 2015

I just can’t get enough of stuff that illustrates just how ridiculuosly enormous the universe and the objects in it are.

In our terrestrial view of things, the speed of light seems incredibly fast. But as soon as you view it against the vast distances of the universe, it’s unfortunately very slow. This animation illustrates, in realtime, the journey of a photon of light emitted from the surface of the sun and traveling across a portion of the solar system, from a human perspective.

Earth’s Dashboard Is Flashing Red—Are Enough People Listening?

February 4, 2015

We are burning record levels of coal, oil, and natural gas to fuel modern society. As a result, we are producing record levels of greenhouse gases that warm the atmosphere, melt the planet’s ice, and cause the oceans to become more acidic-threatening marine life.

In mid-January, researchers from the National Oceanic and Atmospheric Administration (NOAA) and NASA reported that 2014 was the warmest year in the past 135 years of record-keeping. Globally, land and ocean temperatures were 0.69°C higher than the average for the 20th century-passing previous highs set in 2005 and 2010.

One striking, visible effect of rising temperatures is the shrinking Arctic ice cap. Satellites have been observing the ice cap since 1979, and since then the summer ice there has been shrinking about 12 percent per decade. By the end of summer 2012, about half of the Arctic ice area present in 1979 had melted.

Arctic ice cap 2012

We can change, our species just needs to find the motivation! Learn more here.

How Small Is An Atom?

January 22, 2015

Atoms are very weird. Wrapping your head around exactly how weird, is close to impossible – how can you describe something that is SO removed from humans experience? But then again, they kind of make up everything, so let us try anyways.


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