Tracey-Lee Robertson

19 Flips | 7 Magazines | 1 Like | 1 Following | @TraceLee66 | Permaculture Designer, Nutritionist, PAGAN

Emotional Support and Venting

'Extremely Unexpected': Mysterious Plumes on Mars Baffle Scientists

A mystery is brewing on Mars: Amateur astronomers spotted enormous plumes erupting off the Red Planet's surface, leaving scientists puzzled.<p>More than 155 miles (250 kilometers) high and hundreds of miles across, the baffling plumes were spotted by amateur astronomers in the spring of 2012. The …

Environmental Consequences of Oil Train Derailment Unclear

Wreckage from a derailed oil train smoldered in West Virginia on Tuesday as environmentalists waited to see whether surrounding water and wildlife would be tainted by the train’s cargo of North Dakota crude.<p>For some in the area, the latest incident also brought on memories of when a coal-cleaning …

North Dakota

One-way Mars trip: shortlist includes seven Australians

Seven Australians have made a shortlist of 100 candidates competing for a one-way trip to Mars to establish the red planet’s first colony.<p>Nineteen-year-old Sare Teah, stand-up comedian Josh Richards and geoscientist Electra Navarone were among the Australian finalists for the Mars One project, …

Strongest known natural material - spider silk or limpet teeth?

LONDON (Reuters) - Spider silk may lose its claim as the strongest known natural material after researchers found that limpet teeth have more mettle.<p>Spider silk is hailed by scientists for its strength and structure, but researchers in Britain have discovered that limpets — snail-like sea creatures …

Man-made DNA can now store data for millions of years

Swiss scientists have discovered encasing DNA in glass and chilling it down can preserve data encoded in it for millions of years, moving them closer …

Genetics

The Oldest Stars Are a Lot Younger Than We Thought

Astronomers say the very first stars in the universe burst into existence more than 100 million years later than they previously thought.<p>A few hundred million years after the Big Bang, the light from some of the very first stars and galaxies lit up the universe and ended a period known as the "dark …

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

As scientists and much of the public differ on the causes of climate change, the planet keeps getting warmer … and the effects are adding up.<p>Scientists are having trouble convincing the public that people are changing the climate.<p>A Pew Research Center survey, released last week as part of a broader …

Calling All Nutrition Experts: An Open Letter and Bet

Per my title, this is an open letter to, and bet with, my fellow nutrition experts worldwide.<p>I hasten, though, to append the relevant provisos. I mean actual nutrition experts -- not everybody with an opinion. I don't mean what's left after our culture gets done beating expertise to death. I do NOT …

Microscopic gold tubes can both detect and destroy cancer cells

There's no doubt that doctors would prefer to treat cancer as soon as they spot it, and it looks like nanotechnology might give them that chance. Researchers at the University of Leeds have successfully tested gold nanotubes that are useful for both imaging and destroying cancer cells. Since the …

4 Sky Events This Week: Mars Snuggles With Venus, Green Comet Rings a Bell

Starstruck<p>Sky-watchers get a last good look at comet Lovejoy while nearby planets jostle for attention.<p>As Earth's moon begins its climb in our night skies this week, the moons of Jupiter chase their shadows. Elsewhere in the solar system, the goddess of love makes her move on the god of war.<p><b>Jovian</b> …

Why Artificial Intelligence Will Not Obliterate Humanity

It's not smart enough to turn sinister<p>Elon Musk is terrified of artificial intelligence (AI). The founder of SpaceX and Tesla Motors predicts it’ll soon be "potentially more dangerous than nukes," and recently he gave $10 million toward research to "keep AI beneficial." Stephen Hawking has likewise …

Artificial Intelligence

Rare Earth Metal Balls Found Beneath The Atlantic Ocean

The ancient deposit could be good news for tech companies<p>Scientists looking for deep sea organisms on a research cruise last month got a surprise when, instead of deep sea life, they pulled up metal balls the size of softballs. The German researchers stumbled inadvertently onto the discovery of the …

Rare Earth

Advantages of Eating Paleo Diet Foods

A lot of people have realized the importance of eating right. As such, there are countless diet plans available in the market today. One highly …

What Happens To Your Body When You Get Drunk And Stoned At The Same Time?

The science of the spins<p>The intoxicating effects of alcohol and of marijuana have been widely studied, but their combined effect—getting "cross-faded"—is woefully underexplored scientific territory. Here's a look at what we know about how pot and booze together affect the brain.<p>First, the basics: …

Cannabis

Parasitic Amoeba Eats People Alive, Bite By Bite

These amoebae eat human cells while they are still alive, and then move on. Terrifying.<p>It used to be thought that the parasite <i>Entamoeba histolytica</i> killed human cells with toxins and only ate them once they were dead--and that during its meals, it would eat cells by engulfing them whole, like other …

Biology