A thief entered the bedroom of the 30th President of the United States, who met him and helped him escape punishment.

    The event happened in the early rooming hours in one of the first days when Calvin Coolidge came into power, late in August, 1923. He and his family were living in the same third­floor suite (套房) at the Willard Hotel in Washington that they had occupied several years before. The former President's wife was still living in the White House.

    Coolidge awoke to see a stranger go through his clothes, remove a wallet and a watch chain.

    Coolidge spoke, “I wish you wouldn't take that.”

    The thief, gaining his voice, said, “Why？”

    “I don't mean the watch and chain, only the charm (表坠). Take it near the window and read what is impressed on its back.” the President said.

    The thief read, “Presented to Calvin Coolidge.”

    “Are you President Coolidge？” he asked.

    The President answered, “Yes, and the House of Representatives (众议院) gave me that watch charm. I'm fond of it. It would do you no good. You want money. Let's talk this over.”

    Holding up the wallet, the young man said in a low voice, “I'll take this and leave everything else.”

    Coolidge, knowing there was $80 in it, persuaded the young man to sit down and talk. He told the President he and his college roommate had overspent during their holiday and did not have enough money to pay their hotel bill.

    Coolidge decided to offer the man and his roommate two rail tickets back to the college. Then he counted out $32 and said it was a loan (借款)．

    He then told the young man, “There is a guard in the corridor.” The young man nodded and left through the same window as he had entered.

    A few years ago I had an “aha!” moment regarding handwriting.

    I had in my hand a sheet of paper with handwritten instructions on it for some sort of editorial task. It occurred at first that I did not recognize the handwriting, and then I realized whose it must be. I finally became aware of the fact that I had been working with this colleague for at least a year, maybe two, and yet I did not recognize her handwriting at that point.

    It was a very important event in the computerization of life-a sign that the informal. Friendly communication of people working together in an office had changed from notes in pen to instant messages and emails. There was a time when our workdays were filled with little letters, and we recognized one another's handwriting the way we knew voices or faces.

    As a child visiting my father's office, I was pleased to recognize, in little notes on the desks of his staff, the same handwriting I would see at home in the notes he would leave on the fridge—except that those notes were signed “dad” instead of “RFW”.

    All this has been on my mind because of the talk about The Rise and Fall of Handwriting, a book by Florey. She shows in her book a deep concern about the fall of handwriting and the failure of schools to teach children to write well, but many others argue that people in a digital age can't be expected to learn to hold a pen.

    I don't buy it.

    I don't want to see anyone cut off from the expressive, personal associations that a pen still promotes better than a digital keyboard does. For many a biographer, part of really getting to know their subjects is learning to read their handwriting.

    What some people advocate is teaching one of the many attractive handwritings based on the handwriting of 16^th-century Italy. That may sound impossibly grand-as if they want kids to learn to draw by copying classical paintings. However, they have worked in many school systems.

    University of New South Wales has launched its new 12-month Women in Maths & Science Champions Program designed to give women the skills and confidence to build their public recognition and set up a connected network of women in maths and science. The first group of 30 female PhD students started in August this year, and the second group of 19 early- career researchers was formally announced yesterday.

    Over the 12 months, the champions complete at least 20 hours of related activities as part of a community of representatives who will influence and inspire women to pursue a career in maths and science. The activities are varied, ranging from visiting schools and conducting science presentations, to attending conferences and creating content for social media. At the end of the program, PhD champions have the chance to apply everything they've learned to the Postgraduate Research Competition. Above all, participating is a requirement for program completion.

    Rose O'Dea, a member of the first group, is a PhD candidate at the School of Biological, Earth and Environmental Sciences. She said, "I'm excited about the opportunity to work with school children. I hope to inspire some girls so they see not all scientists are older men in lab coals and that science is quite diverse and means different things depending on who you are."

    Dr. Mariana Mayer Pinto is an early-career researcher at the School of Biological, Earth and Environmental Sciences, where she mainly works with marine (海洋的) ecologists. She is originally from Brazil and said that being a woman from a developing country meant she knew the struggles that lack of role models can create. "You can't be what you can't see! I always have the hope that I can change the world bit by bit, and if one little girl says she can become a scientist because I talked to them, that'd be awesome, and that would make everything worth it."

    Clothes can make phone calls, play music, dial your pal's number, keep you warm during cold weather and operate your computer?

    This is not a fantasy. A British company, called Electrotextiles, has created a wide range of clothes—clothes that have minds of their own! Scientists, working for the company, have invented a kind of cloth that can be mixed with flexible (有弹性的) electronic materials to create intelligent clothing. The results are electronic garments (衣服).

    If you think the wearer has to be wired to different devices, think again. These designer clothes are wire-free, soft to touch and washable! Like any electronic device, these high-tech clothes have to be powered. Currently, a tiny nine-volt battery serves the purpose. But the researchers hope that in the near future the clothes will produce electricity by using body heat. These clothes are 100 percent shock proof, they say.

    The Electrotextiles team has also created the world's first cloth keyboard. This keyboard can be sewn into your trousers or skirt. To use this device, you will have to sit down and tap on your lap! These 'lap-tap' gadgets (器具), are all set to take over laptop computers!

    Another useful garment is the shirt-cum-mobile phone. This handy invention enables drivers to chat comfortably with others at the wheel! Other popular electronic wear include the denim (牛仔布) jacket with flexible earphones sewn into the hood and the electronic ski jacket with a built-in heater. The ski jacket is also programmed to send signals to a satellite. This technology is known as global positioning system and can be used to track lost skiers and wandering kids.

    Having completed the cloth keyboard, scientists have already started to work on a new project—a necktie that can be used as a computer mouse. What is the next? Do you have any idea?

    There's a world of difference between a horror movie and a comedy—the former scares you half to death while the latter leaves you rolling on the floor with laughter. But try watching them without the background music and you just might decide they're not so different after all. Music and movies have been closely connected since the beginning of the film industry—even before the voices of actors were recorded. In movies, music helps to provide a sense of time and place, convey ideas about the characters and, most importantly, draw emotions out of the audience.

    Studies have long shown that our heart rates and anxiety levels rise and fall depending on the speed of the music we hear. Using this knowledge, composers use sudden changes in film music speed to create fear among audiences. Slowing the speed of the music will have the opposite effect, bringing about a sense of peace or a dreamlike quality. The use of dissonant (不和谐的) tones and noises is another technique that heightens tension. Humans naturally become unnerved when we hear dissonant sounds because such noises are usually associated with danger, like those that animals make to warn against predators (捕食者).

    As crucial as it is, the best film music is subtle. All that audiences are supposed to feel is a heightened sense of emotion—they shouldn't realize what's causing it. Only when the music is taken out of the film should audiences understand its effects.

    In keeping with this principle, some filmmakers are even using what's called "infrasound" (次声波) to arouse fear. While we may not be able to hear it because its frequency is below the range of the human ear, infrasound has been proven to cause anxiety, tremble and even sorrow. For example, infrasound was used in the soundtrack of the 2007 horror movie Paranormal Activity, and audiences reposed extremely high fear levels despite the 1ack of action throughout the movie. "It doesn't affect everyone equally," said British science writer Philip Ball, author of The Music Instinct, but he predicted that "we will see more of it used in movies in the future".

An Edinburgh inventor has created a fully biodegradable bottle that is made from paper and a secret combination of plant materials, and it could help save the planet's oceans from plastic pollution and can also be eaten by sea creatures.

The Edinburgh-based Durham University chemistry graduate James Longcroft started a non-profit bottled water company two years ago. He wanted to put all his profits into a charity that provided clean drinking water to countries in Africa.

However, after concerns about the environmental impact of plastic bottles, Mr. Longcroft decided the Edinburgh and London-based company, Choose Water, should go plastic-free. So he came up with a new type of water bottle—a waterproof paper bottle.

"The outside is made from recycled paper, but the inside has to be waterproof, and provides strength so the bottle would keep its structure, and keep the water fresh," Mr. Longcroft said.

When the bottle is thrown in the ocean the degrading process begins within hours leaving the bottle totally degraded (分解)within weeks. The steel cap breaks down within a year.

Mr. Longcroft now believes these novel bottles could revolutionise the industry and says the cost of producing the bottle is around 5 pence more than one made from single-use plastic.

"The main difficulty we face is breaking into a saturated (饱和的)market and competing with an old industry," he said. "Changing an industry will be a big uphill battle, but with the support from the public, we will change the way we look at bottled water."

Researchers warn that eight million tonnes of plastics currently find their way into the ocean every year which will stay in the environment for centuries.

"We really want to get our bottles on shelves and into people's hands as soon as possible—if we can stop even one plastic bottle ending up in the environment it will be worth it," said Mr Longcroft.