Introduction of Holi

    Holi is an ancient festival of colours and love. It is celebrated in India and many parts of South Asia. There are lots of Holi celebrations. It is becoming more and more popular.

The festival of colour

Holi means the beginning of spring. It is a time to give thanks for the good harvest. The dates change each year according to the full moon, but it is usually in March and sometimes in late February. People go outside and throw coloured paint powder(粉) at each other. It does not matter whether you are rich or poor, old or young—everyone can throw colours. It is a time to forgive people and repair broken relationships, as well as meet other people, play and have fun.

    Traditional Holi

    Traditional Holi celebrations start the night before the throwing of colours. People meet around a bonfire(篝火) and hope that the bad will be destroyed. The next day is the festival of colours. There is music playing, and people run and laugh in the streets and parks. Holi is celebrated outside.

    Other Holi events in the UK

    Holi celebrations began as early as the fourth century. It is thousands of years old! But recently, Holi-themed events have become popular with a new generation in Europe and North America. Every year, many people go to Holi events in London and all over the UK. They dress in white T-shirts and return covered in bright colours. There are paint-throwing parties at music festivals and races like the five-kilometre 'Colour Run'. In the UK, restaurants and cultural organizations also offer their own Holi celebrations, with special dishes, Indian music and dance.

    The lives of the Ancient Greeks revolved(运转) around Eris, a concept by which they defined the universe. They believed that the world existed in a condition of opposites. If there was good, then there was evil； if there was love, then there was hatred; joy, then sorrow; war, then peace; and so on. The Greeks believed that good Eris occurred when one held a balanced outlook on life and coped with problems as they arose. It was a kind of ease of living that came from trying to bring together the great opposing forces in nature. Bad Eris was evident in the violent conditions that ruled men's lives. Although these things were found in nature and sometimes could not be controlled, it was believed that bad Eris occurred when one ignored a problem, letting it grow larger until it destroyed not only that person, but his family as well. The Ancient Greeks saw Eris as a goddess: Eris, the Goddess of Discord, better known as Trouble.

    One myth that expresses this concept of bad Eris deals with the marriage of King Peleus and the river goddess Thetis. Zeus, the supreme ruler, learns that Thetis would bear a child strong enough to destroy its father. Not wanting to father his own ruin, Zeus convinces Thetis to marry a human, a mortal(凡人) whose child could never challenge the gods. He promises her, among other things, the greatest wedding in all of Heaven and Earth and allows the couple to invite whomever they please. This is one of the first mixed marriages of Greek Mythology and the lesson learned from it still applies today. They do invite everyone . . . except Eris, the Goddess of Discord. In other words, instead of facing the problems brought on by a mixed marriage, they turn their backs on them. They refused to deal directly with their problems and the result is tragic. In her fury(狂怒), Eris arrives, ruins the wedding, causes a jealous argument between the three major goddesses over a golden apple, and sets in place the conditions that lead to the Trojan War. The war would take place 20 years in the future, but it would result in the death of the only child of the bride and groom, Achilles. Eris would destroy the parents' hopes for their future, leaving the couple with no legal heirs (继承人) to the throne.

    Hence, when we are told, “If you don't invite trouble, trouble comes,” it means that if we don't deal with our problems, our problems will deal with us .with a revenge! It is easy to see why the Greeks considered many of their myths learning myths, for this one teaches us the best way to defeat that which can destroy us.

    Any foreigner who has tried to learn Chinese can tell how hard it is to master the tones required to speak and understand. And anyone who has tried to learn to play the violin or other instruments can report similar challenges.

    Now researchers have found that people with musical training have an easier time learning Chinese. Writing in the online edition of Nature Neuroscience，researchers from Northwestern University say that both skills draw on the same parts of the brain that help people discover changes in pitch(音调).

    One of the study's authors，Nina Kraus，said the findings suggested that studying music "actually tunes our sensory system" .This means that schools that want children to do well in languages should hesitate before cutting music programs，Dr. Kraus said. She said music training might also help children with language problems.

    Mandarin(普通话)speakers have been shown to have a more complex encoding(编码) of pitch patterns in their brains than English speakers do. This is because in Mandarin and other Asian languages，pitch plays a central role. A single­syllable word can have several meanings depending on how it is intoned.

    For this study，the researchers looked at 20 non­Chinese speaking volunteers，half with no musical background and half who have studied an instrument for at least six years.

    As they were shown a movie，the volunteers also heard an audio tape of the Mandarin word “mi” in three of its meanings: squint，bewilder and rice. The researchers recorded activities in their brain stems to see how well they were processing the sounds. Those with a music background showed much more brain activities in response to the Chinese sounds.

    The lead author of the study，Patrick C.M. Wong，said it might work both ways. It appears that native speakers of tonal languages may do better at learning instruments.

    Get top tips from an expert photographer while you are taking digital photographs in the Garden at Kew.

Event details

    Wednesday 13 – Thursday 14 February, 2019

    Time: 10:30 am – 4 pm

    Place: Kew Gardens

    Course Fee: £160

About the course

    This course is designed for camera-owners who would like to know the basics. It will explain some of the basic principles of photography such as focus and exposure as well as many of the practical aspects such as how to download and store images.

    The great part of the time will be spent practicing techniques by actually using cameras out in the beautiful gardens at Kew. There will be many opportunities to ask questions, review your own images and learn some top tips.

    This course is suitable for people with any sort of camera. It is useful to bring along instructions books, and you'll need to make sure your batteries are fully charged and your memory card has some free space on it.

About the tutor

    Edward Parker is an expert tree and forest photographer who, over the last 20 years, has worked in more than 40 countries around the world. He has written more than 30 educational books and his photographs have been on exhibition at Kew Gardens, Downing Street and the Horniman Museum. Photographing Trees is his latest book.

How to book

    Email adulated@kew.org with a contact number, or call at 020 8332 5641.

Albert Einstein's 1915 masterpiece "The Foundation of the General Theory of Relativity" is the first and still the best introduction to the subject, and I recommend it as such to students. But it probably wouldn't be publishable in a scientific journal today.

Why not? After all, it would pass with flying colours the tests of correctness and significance. And while popular belief holds that the paper was incomprehensible to its first readers, in fact many papers in theoretical physics are much more difficult.

As the physicist Richard Feynman wrote, "There was a time when the newspapers said that only 12 men understood the theory of relativity. I do believe there might have been a time when only one man did, because he was the only guy who caught on, before he wrote his paper. But after people read the paper a lot understood the theory of relativity in some way or other, certainly more than 12."

No, the problem is its style. It starts with a leisurely philosophical discussion of space and time and then continues with an exposition of known mathematics. Those two sections, which would be considered extraneous today, take up half the paper. Worse, there are zero citations of previous scientists' work, nor are there any graphics. Those features might make a paper not even get past the first editors.

A similar process of professionalization has transformed other parts of the scientific landscape. Requests for research time at major observatories or national laboratories are more rigidly structured. And anything involving work with human subjects, or putting instruments in space, involves piles of paperwork.

We see it also in the Regeneron Science Talent Search, the Nobel Prize of high school science competitions. In the early decades of its 78-year history, the winning projects were usually the sort of clever but naive, amateurish efforts one might expect of talented beginners working on their own. Today, polished work coming out of internships(实习) at established laboratories is the norm.

These professionalizing tendencies are a natural consequence of the explosive growth of modern science. Standardization and system make it easier to manage the rapid flow of papers, applications and people. But there are serious downsides. A lot of unproductive effort goes into jumping through bureaucratic hoops(繁文缛节), and outsiders face entry barriers at every turn.

Of course, Einstein would have found his way to meeting modern standards and publishing his results. Its scientific core wouldn't have changed, but the paper might not be the same taste to read.