Scientist of the day - Karl Ferdinand Braun

Karl Ferdinand Braun was a German physicist and inventor who received the Nobel Prize for Physics in 1909. He shared the prize with another inventor and scientist Guglielmo Marconi. He was awarded the Nobel Prize for his work in the development of the technologies used in television and radio. He became interested in experimenting with wireless telegraphy at an early age. The distance that could be covered by the wireless technology developed by Marconi was about 15 kilometers only. The antenna was connected directly to the power circuit of the transmitter. Braun developed an antenna that could increase the distance by many more kilometers over which wireless transmissions could be made. He is also famous for the creation of the Cathode Ray Tube or CRT used in the design of TV screens and computer monitors later. He designed ways to control the cathode rays by changing the voltage to obtain a definite pattern on the fluorescent screen which had not been possible earlier. The oscilloscope was also his invention which is used in electrical and electronic laboratories as an instrument for measuring different electrical parameters. He also invented the first ‘cat’s whisker diode’ which led to the invention of crystal receivers for radios. 

Childhood & Early Life

Karl Ferdinand Braun was born on June 6, 1850 in Fulda, Germany to Johan Konrad Braun and Franziska Gohring Braun. He was the fourth child of his parents.

Major Works

His patented theories have been published in the books titled as ‘Electro Telegraphy by means of Condensers and Induction Coils’ and ‘Wireless Electro Transmission of Signals over Surfaces’.

Awards & Achievements

Karl Ferdinand Braun was awarded the Nobel Prize for Physics in 1909 for his path-breaking discovery work in wireless telegraphy and television technology and inventions.

Personal Life & Legacy

• He married Amelie Buhler in 1883 while working at the Polytechnic school in Karlsruhe.
• He had two sons and two daughters from this marriage.
• Karl Ferdinand Braun died on April 20, 1918 in Brooklyn New York, United States, before the end of the First World War.

World Environment Day 2016

 

Environment Day

World environment day is also known as the Environment Day, Eco Day or short form WED. It has been one of the great annual events for years which is being celebrated worldwide by the people aiming to protect the unique and life nurturing Nature on every 5^th June.

World Environment Day 2016

World environment day 2016 would be celebrated by the people all across the world on 5^th of June, at Sunday.

Why World Environment Day is Celebrated

World environment day annual celebration campaign was started to address the huge environmental issues like wastage and losses of food, deforestation, increasing global warming and so many. Every year celebration is planned according to the particular theme and slogan of the year to bring effectiveness in the campaign all through the world.

• It is celebrated to make aware the common public about the environmental issues.
• Encourage common people from different society and communities to actively participate in the celebration as well as become an active agent in developing environmental safety measures.
• Let them know that community people are very essential to inhibit negative changes towards the environmental issues.
• Encourage people to make their nearby surroundings safe and clean to enjoy safer, cleaner and more prosperous future.

World Environment Day Activities

Variety of activities are planned to celebrate this great event in different countries to encourage more people towards the celebration. Various news channels take part very actively in the celebration to cover the news and distribute messages about the celebration among common public through their news publications to bring effective and positive changes towards the environment to solve all the environmental issues. Some of the national and international level activities include street rallies, tree plantation, garbage recycling, surrounding areas clean-up, parades and so many activities in order to draw people attention towards wide range of environmental issues as well as bring difference.

World Environment Day Theme and Slogan

Each year celebration of the World Environment Day is based on the particular theme decided by the United Nations to make the celebration more effective by encouraging mass people worldwide to hugely take part in addressing environmental issues on global scale. Year wise list of the themes and slogans of world environment day are mentioned below:

• The theme of the year 2016 would be “Join the race to make the world a better place”.
• The theme of the year 2015 was “One World, One Environment”.