Category Science

Snake Oil? Scientific evidence for popular health supplements

Great chart by Information is Beautiful:

It’s a “balloon race”. The higher a bubble, the greater the evidence for its effectiveness. But the supplements are only effective for the conditions listed inside the bubble. You might also see multiple bubbles for certain supplements. These is because some supplements affect a range of conditions, but the evidence quality varies from condition to condition. For example, there’s strong evidence that Green Tea is good for cholesterol levels. But evidence for its anti-cancer effects is conflicting.

Bloom Energy

A company called Bloom Energy and founded by K.R. Sridhar is set to launch a new energy device tomorrow that he says is a breakthrough in fuel cell technology—namely making it affordable (the Holy Grail of fuel cell research) and thus providing a localised and comparatively cleaner and cheaper form of electricity than that which we currently get from the grid.

There was a segment covering the topic on CBS’s 60 minutes Sunday night, including an interview with K.R. Sridhar, which can watch online here.

New study links religion to immoral behaviour

While correlation doesn’t necessarily prove causation the study doesn’t need to. It only needs to prove correlation to challenge the claim that “religion leads to better societies.” Click through for the video.

How to defend the Enlightenment

How to defend the Enlightenment:

On the publication of his new book In Defence of the Enlightenment, Tzvetan Todorov tells British philosopher AC Grayling why the Enlightenment must be separated from scientism and cultural chauvinism.

Science confirms: conservatives are a bunch of scaredy-cats

Nicholas D. Kristoff, writing for the New York Times:

Researchers have found, for example, that some humans are particularly alert to threats, particularly primed to feel vulnerable and perceive danger. Those people are more likely to be conservatives.

Do we want brain scanners to read our minds?

Professor Colin Blakemore assesses the intriguing implications of advances in neuroscience that have made it possible to communicate with those in a vegetative state:

Astronomy, from Copernicus on, has transformed our view of the place of the earth in the heavens. Darwin changed forever our view of the status of humanity. Neuroscience is likely to challenge our very understanding of what it is to be a person.

Doctors think you’re a vegetable but you can hear everything they say

I watched The Diving Bell and the Butterfly the other night, a film based on real events about a man that is totally paralysed and can only communicate by blinking his eye.

But this is something else, amazing:

For seven years the man lay in a hospital bed, showing no signs of consciousness since sustaining a traumatic brain injury in a car accident. His doctors were convinced he was in a vegetative state. Until now.

To the astonishment of his medical team, the patient has been able to ­communicate with the outside world after scientists worked out, in effect, a way to read his thoughts.

They devised a technique to enable the man, now 29, to answer yes and no to simple questions through the use of a hi-tech scanner, monitoring his brain activity.

To answer yes, he was told to think of playing tennis, a motor activity. To answer no, he was told to think of wandering from room to room in his home, visualising everything he would expect to see there, creating activity in the part of the brain governing spatial awareness.

His doctors were amazed when the patient gave the correct answers to a series of questions about his family.

Iraq to sue U.S., Britain over depleted uranium bombs

Press TV:

Iraq’s Ministry for Human Rights will file a lawsuit against Britain and the US over their use of depleted uranium bombs in Iraq, an Iraqi minister says.

According to Iraqi experts, the U.S. and Britain, being the lovers of freedom and democracy that they are:

… bombed the country with nearly 2,000 tons of depleted uranium bombs during the early years of the Iraq war. Atomic radiation has increased the number of babies born with defects in the southern provinces of Iraq.

Change blindness

Spooky. Click through for the video.

Oil lobby behind climate change denial

Climate change denialism fascinates me. How does one become a denialist in the face of scientific consensus? Having talked to people who exhibit various levels of denial and scepticism my hunch is that it’s an inherit psychological defect of humans. People can’t bring themselves to accept that they might be partly responsible for a crime of such enormity, so they deny. A classic psychological response.

But while this might explain why so many are ready and willing to be duped into thinking man-made climate change is a conspiracy, it doesn’t seem to explain why so many are duped. Turns out there’s an explanation for that:

Think environmentalists are stooges? You’re the unwitting recruit of a hugely powerful oil lobby – I’ve got the proof.

I have placed on the Guardian’s website four case studies; each of which provides a shocking example of how the denial industry works.

Remember this the next time you hear people claiming that climate scientists are only in it for the money, or that environmentalists are trying to create a communist world government: these ideas were devised and broadcast by energy companies. The people who inform me, apparently without irony, that “your article is an ad hominem attack, you four-eyed, big-nosed, commie sack of shit”, or “you scaremongers will destroy the entire world economy and take us back to the Stone Age”, are the unwitting recruits of campaigns they have never heard of.