Forget Formula 1 – cars the size of molecules came to France to race on a track made of gold. Rob Banino sizes up the competition
People will race anything, given half a chance. Whether it’s motorcars, mammals or lawnmowers, we want to know which is the fastest. A race is also what brought an international group of scientists to Toulouse, France on 14 October – but they visited to race molecules. Molecules that have been engineered to be tiny nanocars.
“A nanocar is a special kind of nano-vehicle,” explains Dr Christian Joachim of the Centre National de la Recherche Scientifique in Toulouse, the nanocar race director. “They’re made of four molecular wheels, a molecular chassis and [in some cases] a molecular motor. All these chemical-mechanical parts are bonded together to form a single, robust molecule.”
Needless to say, a molecule that’s been engineered to drive across an atomic landscape is small – very small. “Wheel diameter is generally less than one nanometre and a chassis is about two to three nanometres long,” says Joachim. One nanometre is one billionth of a metre; the average human hair is about 25,000 nanometres wide.
この記事は BBC Earth の December 2016 版に掲載されています。
7 日間の Magzter GOLD 無料トライアルを開始して、何千もの厳選されたプレミアム ストーリー、9,000 以上の雑誌や新聞にアクセスしてください。
すでに購読者です ? サインイン
この記事は BBC Earth の December 2016 版に掲載されています。
7 日間の Magzter GOLD 無料トライアルを開始して、何千もの厳選されたプレミアム ストーリー、9,000 以上の雑誌や新聞にアクセスしてください。
すでに購読者です? サインイン
World's First Malaria Vaccine
The World Health Organization’s director-general hails ‘historic moment’ as mass immunisation of African children begins
Is River Pollution Putting The Species In Jeopardy Again?
Ten years ago, it was jubilantly announced that o ers had returned to every county in England. But is river pollution putting the species in jeopardy again?
The Big Burnout
Long hours, low pay and a lack of appreciation — among other things — can make for a stressful workplace and lead to burnout. It’s something we should all be concerned about, because over half of the workforce reports feeling it
Putting Nature To Rights
More countries are enshrining the right to a clean environment into law. So if a company or government is impinging upon that right, you could take them to court
Mega Spaceship: Is It Possible For China To Build A Kilometre-Long Spacecraft?
Buoyed on by its successful Moon missions, China has launched a five-year study to investigate the possibility of building the biggest-ever spacecraft
Are We Getting Happier?
Enjoying more good days than bad? Feel like that bounce in your step’s getting bigger? HELEN RUSSELL looks into whether we’re all feeling more cheery…
“Unless the Japanese got the US off their backs in the Pacific, they believed they would face complete destruction”
Eighty years ago Japan’s surprise raid on Pearl Harbor forced the US offthe fence and into the Second World War. Ellie Cawthorne is making a new HistoryExtra podcast series about the attack, and she spoke to Christopher Harding about the long roots of Japan’s disastrous decision
Your Mysterious Brain
Science has mapped the surface of Mars and translated the code for life. By comparison, we know next to nothing about what’s between our ears. Over the next few pages, we ask leading scientists to answer some of the most important questions about our brains…
Why Do We Fall In Love?
Is it companionship, procreation or something more? DR ANNA MACHIN reveals what makes us so willing to become targets for Cupid’s arrow
Detecting the dead
Following personal tragedy, the creator of that most rational of literary figures, Sherlock Holmes, developed an obsession with spiritualism. Fiona Snailham and Anna Maria Barry explore the supernatural interests of Sir Arthur Conan Doyle