Author Archives: LeesaRicketson

Dot Earth Blog: Exploring the Social and Environmental Challenges as Brazil Prepares for Two Sports Spectacles

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Codex: Adepta Sororitas (Enhanced Edition) – Games Workshop

The Adepta Sororitas, also known as the Sisters of Battle, are an elite sisterhood of warriors raised from infancy to adore the Emperor of Mankind. Their fanatical devotion and unwavering purity is a bulwark against corruption, heresy and alien attack, and once battle has been joined they will stop at nothing until their enemies are utterly crushed In this b

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Warhammer 40,000 (Interactive Edition) – Games Workshop

In the nightmare future of the 41st Millennium, Mankind teeters upon the brink of extinction. The galaxy-spanning Imperium of Man, beset on all sides by ravening aliens, foul traitors and Warp-spawned Daemons, looks once more to its greatest heroes to stave off the encroaching darkness. There is no time for peace. No respite. No forgiveness. There is only wa

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White Dwarf Issue 16: 17 May 2014 – White Dwarf

This issue sees Warhammer 40,000 reborn with a brand new edition of the game – we go deep and investigate all the exciting new bits, including the new missions, psychic phase and Unbound armies, and interview the rules team too. About this Series: White Dwarf is Games Workshop’s weekly magazine, and boasts a wealth of great content, from the latest new

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Citizen Canine – David Grimm

Dogs are getting lawyers. Cats are getting kidney transplants. Could they one day be fellow citizens? Cats and dogs were once wild animals. Today, they are family members and surrogate children. A little over a century ago, pets didn’t warrant the meager legal status of property. Now, they have more rights and protections than any other animal in the country

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How to Raise the Perfect Dog – Cesar Millan & Melissa Jo Peltier

From the bestselling author and star of National Geographic Channel’s Dog Whisperer , the only resource you’ll need for raising a happy, healthy dog. For the millions of people every year who consider bringing a puppy into their lives–as well as those who have already brought a dog home–Cesar Millan, the preeminent dog behavior expert, says, “Yes,

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Cesar’s Way – Cesar Millan & Melissa Jo Peltier

“I rehabilitate dogs. I train people.” —Cesar Millan There are at least 68 million dogs in America, and their owners lavish billions of dollars on them every year. So why do so many pampered pets have problems? In this definitive and accessible guide, Cesar Millan—star of National Geographic Channel’s hit show Dog Whisperer with Cesar Millan —reveals what do

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The Home Organizing Workbook – Meryl Starr

Failing the Mary Poppins’ snap-the-fingers approach to cleaning, here’s the next best thing: an utterly practical handbook that offers lasting results for anyone looking to banish clutter from every room in the house. Home organizer par excellence Meryl Starr offers up her hardworking organizing solutions in The Home Organizing Workbook, a straight

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Warhammer: Wood Elves (Interactive Edition) – Games Workshop

For millennia, the Wood Elves have dwelt beneath the leaves of Athel Loren, defending their greenwood home from the perils of the world. When the King in the Woods sounds his horn, longbows are strung and spears are sharpened as the hosts of Athel Loren assemble beneath ancestral banners. In the depths of the forests, enchantresses sing songs of awakening, r

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Marley & Me – John Grogan

The heartwarming and unforgettable story of a family and the wondrously neurotic dog who taught them what really matters in life. Now with photos and new material

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White Dwarf Issue 15: 10 May 2014 – White Dwarf

Things get apocalyptic for Warhammer 40,000 with the arrival of War Zone: Valedor – and the rules team write us a brand-new Dark Eldar datasheet you’ll only find in White Dwarf! Sprues and Glue, meanwhile, looks at the fine art of spraying your miniatures… and we have a sneak peek at the new Warhammer 40,000. About this Series: White Dwarf is Games Wo

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Dot Earth Blog: Exploring the Social and Environmental Challenges as Brazil Prepares for Two Sports Spectacles

Posted in alo, Citizen, eco-friendly, FF, G & F, GE, Monterey, ONA, Oster, PUR, solar, solar power, Uncategorized | Tagged , , , , , , , , | Comments Off on Dot Earth Blog: Exploring the Social and Environmental Challenges as Brazil Prepares for Two Sports Spectacles

…But Does a Fire Tornado in Australia Spin the Other Way?

Mother Jones

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This story was originally published by Slate and is reproduced here as part of the Climate Desk collaboration.

Last weekend I posted a video taken not too far from where I live showing a “fire tornado”—really a spinning vortex of rising air drawing its power from fire on the ground. It was pretty dramatic, mostly due to hundreds of tumbleweeds swirling around it, drawn in by the rotating column of wind.

After posting it, I got a note from Chris Tangey, who specializes in photography in Australia’s Outback. He took some footage of a fire tornado in 2012 (watch above) that he claimed was better than what I posted…and he’s right.

Chris Tangey/Vimeo

Yegads. The speed and power of such a vortex depends on how quickly the air in the middle can rise, which in turn draws in air from farther out; as that air spins and falls in the rotation speeds up, tightening the vortex and magnifying it. As you can see in the fire, spurts of flame leap up the inside of the vortex, clearly giving it more strength. The sound and speed of it are enthralling.

I had never heard of this phenomenon until a year or so ago. But now there are cameras everywhere…and, sadly, with global warming likely increasing both the number and severity of wildfires, we’re bound to see lots more footage like this.

Note: The title of this post is a joke; in general the Coriolis force only acts on far larger scales, so I would think a vortex like this (such as a dust devil) is just as likely to spin clockwise as counterclockwise. It would be interesting to see some statistic on this, though!

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…But Does a Fire Tornado in Australia Spin the Other Way?

Posted in alo, Anchor, Citizen, FF, GE, LAI, LG, ONA, PUR, Radius, Uncategorized, Venta | Tagged , , , , , , , , , , , | Comments Off on …But Does a Fire Tornado in Australia Spin the Other Way?