The Hunga Tonga undersea volcanic eruption was the largest on earth over the last 30 years, according to Research Physical Scientist Brian Brettschneider with the National Weather Service Alaska region.

Brettschneider said that the ash created by the eruption will likely cause a slight cooling effect on the climate, though not as dramatic as short-term climate changes from past volcanic eruptions. In 1815, the climate impacts caused by the Mount Tambora volcanic eruption caused what was called “the year without a summer.”

“What we’re seeing so far is a fairly minor amount of climate altering stratospheric sulfur particles have been detected so far,” Brettschneider said. “A pretty small amount relative to the size of the eruption, so kind of our first initial best guess is that there is going to be a pretty minor climate impact over the next few years.”

Of course, that can only account for the estimates of the blast so far, not any future eruptions that may or may not happen.
Estimates say the Hunga Tonga eruption was equivalent to 2% of the pressure released in the Krakatoa eruption for comparison.

Very cool effect in the sky

Seems the GoPro Fusion makes for some cool effects now.
*related videos
https://videosift.com/video/A-snowboarding-adventure-with-insane-camera-transitions
https://videosift.com/video/Stabilized-GoPro-RollerCoaster-Ride

I lived in Cape Canaveral for 35 years. I watched all but 5 shuttle launches and many Delta, Atlas and other rockets. Each unique in it's own way. This launch was spectacular in that the lighting helped illuminate the plume in a way that normally is unseen in a bright sky or total darkness.

Another cool effect when conditions are right during a launch is when a rocket breaks the sound barrier while penetrating thin clouds. It creates what's known as a Sun Dog. The shock wave creates a ripple effect that resembles ripples going across the surface of water. The effect at night can be illuminated by the rocket's bright plume rather than the sun.

Very cool effect.

2 more comments have been lost in the ether at this killed duplicate.

I think the announcer was Garrison Keillor. Cool effects.

In the video I linked he puts a grape under a glass at about 1:42. It's not as prolonged as the cigarette, most likely because it's water vapour as opposed to smoke, but it's still a cool effect.

http://math.ucr.edu/home/baez/physics/General/hot_water.html

http://en.wikipedia.org/wiki/Mpemba_effect

The "Mpemba effect", hot water freezing faster than cold water, is not currently well understood. Some possible explanations are (summed up from above reading).

Evaporation of hot water is a heat transport method out of the main body of liquid, causing a super cooling effect.

Convection currents in warmer water might spread around ice crystals faster.

Frost effect will tend to cause a generally slow freezing from the top instead of warm water from the bottom and sides

None of these give a full account to the phenomena and each has been individually ruled out as the sum total of the effect. Some myriad of factors or some basic lack of insight into thermodynamics is most likely the culprit.

The short of it is...no one really knows.

>> ^nomino:

I think that's youtube's image stabilization at work. Cool effect, but I don't think it was intended. >> ^dannym3141:
I love the "animated" text at the end. Great video.



My point entirely

I think that's youtube's image stabilization at work. Cool effect, but I don't think it was intended. >> ^dannym3141:

I love the "animated" text at the end. Great video.

>> ^Jinx:

I was under the impression that the technique of making Damascus steel had been lost, so I'm not sure that just folding metal qualifies. Still, its a cool effect and I bet it makes a strong knife.


Depends on who you ask. A few people think they've figured it out. I think the ABS defines Damascus steel as 300+ layers, but the term is generally used nowadays to describe any pattern-welded steel, like in this video.

I was under the impression that the technique of making Damascus steel had been lost, so I'm not sure that just folding metal qualifies. Still, its a cool effect and I bet it makes a strong knife.

>> ^Zawash:

Needs a wtf. And different music. But - a seriously cool effect.


*wtf

Needs a * wtf. And different music. But - a seriously cool effect.