Making a blue rose has been the bane of plant breeders around the globe for many, MANY decades. I personally love the idea that scientists have spent so much time and money trying to simply create something beautiful.

From the BBC News article:

Rosebreeder Bernard Mehring says that as far back as the 1900s there was a German variety of "blue" rose known as the Veilchenblau. But the petals are, again, more a "mauvey-grey", he says, and it only flowers once.

According to the Victorians, who promoted floriography - the language of flowers - blue roses signified mystery or the attempt to attain the impossible.

Since those times the colour of a rose has represented a different sentiment or feeling.

Passion and romantic love is still associated with red roses. Pink roses apparently imply a less passionate affection - rather a more gentle or poetic one. White roses signal sincerity and purity, while yellow roses stand for friendship.

Sarah Holland from the Flowers and Plants Association in the UK says she believes natural blue roses "would be hugely in demand".

* * *

Read the full article here.

Researchers have discovered the mechanism by which the leaves of a lotus plant are able to stay dry. This could have wide-ranging applications for material scientists in developing new water-repellent materials.

From the Science Daily article:

"We faced a tricky problem -- water droplets that fall on the leaf easily roll off, while condensate that grows from within the leaf's nooks and crannies is sticky and remains trapped," said Jonathan Boreyko, a third-year graduate student at Duke's Pratt School of Engineering, who works in the laboratory of assistant professor Chuan-Hua Chen. The results of the team's experiments were published early on-line in the journal Physics Review Letters.

"Scientists and engineers have long wondered how these sticky drops are eventually repelled from the leaf after their impalement into the tiny projections," Boreyko said. "After bringing lotus leaves into the lab and watching the condensation as it formed, we were able to see how the sticky drops became unsticky."

The key was videotaping the process while the lotus leaf rested on top of the woofer portion of a stereo speaker at low frequency. Condensation was created by cooling the leaf. It turned out that after being gently vibrated for a fraction of a second, the sticky droplets gradually unstuck themselves and jumped off the leaf.

Voila, a dry leaf.

* * *

Read the full article here.