India, due to its unique variety of geographical and climatic factors, has a rich and varied flora of medicinal plants. No wonder that out of a total number of over 15,000 plant species in India, about 2,000 are known to have medicinal properties and some of them are used even as home remedies in the rural and remotest parts of our country (Arora, 1985).

Ethnobotany

Do you remember Stanley Milgram's famous authority experiments that found participants were willing to shock the living hell out of people if ordered to do so?

If you’re not familiar with this, just google “Milgram experiment” and get ready for some scary reading. If you ARE familiar with this, check out this link to a Washington Post article which describes a recent French reality show that found contestants willing to kill for cash.  Here is a BBC excerpt on Milgram's work.

Obesity is on the rise and one cause for that may be that young people do even less on the weekend than they do during the week - the number of those with inactive lifestyles goes up 100% when they're out of school.   Instead, boys primarily play video games and teenage girls prefer to surf the Internet.

The research, which forms part of the European HELENA study, has shown how the proportion of young people who watch television and play on the computer for more than two hours per day doubles at the weekend.

Two popular supplements taken by millions of people around the world to combat joint pain, glucosamine and chondroitin, do not work, according to research published today - but they don't hurt you either.  Basically, they are expensive placebos.

Glucosamine and chondroitin are either taken on their own or in combination to reduce the pain caused by osteoarthritis in hips and knees.  The researchers, led by Professor Peter Jüni at the University of Bern in Switzerland, state that although they don't work these supplements are not dangerous - "we see no harm in having patients continue these preparations as long as they perceive a benefit and cover the cost of treatment themselves."

The prospective launch of the ambitious and successful Copenhagen Suborbitals rocket received a lot of press. The subsequent launch-abort and delay to spring may not seem an upbeat thing.  In a broad sense, though, it is.

"MAIN LOX VALVE FAILURE

I remember, as a child, being very upset by a ventriloquist’s dummy at a show, and crying out and making a ‘scene’.  Even well into my teens and beyond, I felt disturbed by “magic”, even in mathematics or science.  One particular incident I remember was being shown in class the ‘proof’, by an elementary form a calculus of variations, that the shortest path[1] between two coordinates is a straight line.  This left me with an uncomfortable feeling.

A non-mythological unicorn?   So it seems.   Unicorns have been mentioned throughout history, in mythology and in the works of The Bible and Pliny the Elder's Natural History.    Today the modern westernized unicorn is pure white and hangs out with virgins.

In zoology, it is never so simple.

In 1992, in Vietnam's Vu Quang Nature Reserve near the country's border with Laos, a spectacular zoological discovery occurred.  A creature with long horns (sorry unicorn fans - two of them) and white facial markings, and resembling the antelopes of North Africa but more closely related to wild cattle, a new species called the Saola was discovered.

My last post about hydrogen bonding included a video about dogs as an analogy to the chemistry. This got me thinking about visual analogies, and how video or images can be used to convey something that perhaps print can't quite accomplish.

This video by Brad Plummer and Julie Karceski of SLAC (disclaimer -- they are both colleagues and friends) explains the concept of gravitational lensing -- in which a particularly large galaxy bends light in such a way that an observer can see objects behind the galaxy -- with a simple household item: the wine glass. Watch:

When you think of the ideal creative environment, what comes to mind?  We may imagine a place where you have freedom of expression, a place that encourages breaking convention, somewhere that is abundant in resources that are readily accessible for innovative development of technology, and exposure to many different cultures for inspiration and collaboration.

A new study in Heart says a combination of depression and heart disease is far more lethal than either one of those condition alone.

Depressed people are more likely to die from all causes so it's difficult to narrow down whether or not depressed people with heart disease are at greater risk and people who who are depressed, but otherwise healthy, have been shown to be more likely to develop coronary heart disease, irrespective of what other risk factors they might have.