"O barulho é a tortura do homem de pensamento" (Schopenhauer)
Mostrar mensagens com a etiqueta Silêncio. Mostrar todas as mensagens
Mostrar mensagens com a etiqueta Silêncio. Mostrar todas as mensagens

sábado, 25 de julho de 2015

The sound of silence: is cutting out noise the answer to a stress-free life?

Written by Poppy Szkiler

More than half of us feel that noise in the workplace affects our performance, while the constant onslaught of sound in our daily lives can damage our health 

‘Because we can’t see it, it’s easy to overlook the serious impact that noise can have on our health.’ 

We all know the importance of a little peace and quiet, but how often do we actually manage to escape the noise and get a moment of silence?

Peace is a precious commodity in a world where persistent noise has become part of the daily commute. We are surrounded by sound; from angry car horns to relentless beats escaping from other people’s headphones, and loudly spinning washing machines.

Sound is my family business. My grandfather John Connell OBE founded the Noise Abatement Society in 1959, after lobbying the Noise Abatement Act in parliament. My mother, Gloria Elliott, is now the chief executive of the charity. I founded Quiet Mark in 2012: an award for household tools, appliances and vehicles that reduce noise output but maintain high performance.

Because we can’t see it, it’s easy to overlook the serious impact that noise can have on our health. The World Health Organisation reports that 40% of Europe’s population is exposed to noise levels in excess of 55dB at night: a level that disturbs sleep, concentration and productivity, raises blood pressure and increases incidences of heart disease.

When the department for environment, food and rural affairs (Defra) and Quiet Mark surveyed 2,000 visitors to our Quiet House at the Ideal Home Show, 76% felt that the quality of their home life is affected by noise. A further 61% felt that noise in the workplace adversely affects how well they perform.


Photograph: Getty Images

Why is silence so important?

Silence is liberating. Thinking decisions through from beginning to end with no distractions is something I try to do for an hour each morning. Taking time out actually helps me to stay peaceful despite the demands of the rest of the day. Creativity flows and decisions download effortlessly. It can be a comfort in challenging times and a special way to solve problems.

A recent YouGov and Mental Health Foundation survey reported that 29% of people are stressed; while 24% suffer from anxiety and 17% from depression.

Of the 2,000 British adults surveyed, nearly half of workers struggle to switch off after work, and that nearly two thirds of people would be likely to take part in activities that reduce stress if given the option.

Sitting quietly could be the key, whether that’s at home before breakfast or with our work colleagues on the 14th floor of the office. Meditation has been shown to reduce stress, lower blood pressure, reduce chronic pain and improve sleep. Silence improves our health.

The power of silence has been embraced by the medical profession in recent years as a way of reducing stress and combating depression and anxiety. The NHS now, in some instances, prescribes the ancient art of meditation and mindfulness to patients when once they may have prescribed anti-depressants. Mindfulness has become the new buzzword for peace and quiet. Through the process of meditation patients are encouraged to be silent.

Mindfulness is entering the mainstream at a rapid rate. There’s an all party parliamentary group looking at the benefits of bringing mindfulness into public policy, while global companies such as Goldman Sachs and Google are offering it to their employees.

Taking time to be quiet forces us to think truthfully about ourselves and others in real time, to find answers beyond ourselves. It can be humbling but deeply rewarding. As uncomfortable as that may be, when we face up to reality we connect with who we really are and heal in that place.

Sometimes it may be impossible to get away from a ringing iPhone, a noisy work colleague or an overcrowded tube. But we do have the choice to put down the phone, step away from the computer, slow down and enjoy benefits of quietness.

sexta-feira, 12 de setembro de 2014

Stop irritating chatter with speech-jammer!


If “shhhh” doesn’t work, the Speech Jammer might. This device renders chatterers speechless! Who knows, the Speech Jammer may one day find its way into classrooms and debates. This device created by Kazutaka Kurihara and Koji Tsukada won the 2012 Ig Nobel prize in acoustics.
The Ig Nobel Prizes honor achievements that make people LAUGH, and then THINK. The prizes are intended to celebrate the unusual, honor the imaginative — and spur people's interest in science, medicine, and technology.

The Speech Jammer uses our own speaking to silence us. For the average person, speaking requires us to hear ourselves. If that feedback becomes distorted, the person slows down and then stops talking.


The Speech Jammer records a person’s voice and plays it back with a slight time delay (a few hundred milliseconds). This feedback of hearing your words again, slightly after you’ve said them, is so disruptive that it renders you speechless. Perhaps, with practice, one might be able to overcome the speech jammer and continue speaking, but to the best of our knowledge, it hasn’t been done yet. Kurihara and Tsukada have posted a YouTube video of their Speech Jammer in action, which you can see below.

The speech jammer is composed of a directional microphone, a time delay integrated circuit, and a directional speaker to play the sound back. All of the components are well known, but the novelty stems from how they are used together.


For further information about the physics behind the Speech Jammer, please visit Physics Central.

sexta-feira, 30 de setembro de 2011

O Livro do Silêncio

Uma viagem em busca dos prazeres e dos poderes do silêncio

Ao aproximar-se dos cinquenta anos de idade, Sara Maitland decide sair da cidade e apaixona-se pelo silêncio. Neste livro profundo e evocativo, Maitland explora esse fascínio, mergulhando na escuridão e na euforia que o silêncio pode proporcionar, e analisa a sua história cultural.
Contempla a experiência do silêncio - as noites que passou no Deserto do Sinai, as semanas em que viveu na Ilha de Skye, os relatos de viajantes e místicos - e defende a importância do silêncio num mundo cada vez mais dependente do ruído.

O resultado é uma exploração aos recônditos do silêncio, valorizando-o em detrimento da presença ruidosa que nos cerca.
Aconselho vivamente!
Pré-requisito: deverá fazer sentido ao leitor que o silêncio não seja a falta de algo. Desta forma a leitura do livro constituirá uma autêntica jornada para exploração da nossa capacidade de ouvir mais atentamente :)