Children are very sensitive and need extra love as well as care in their initial years. So, working parents are advised to spend some quality time with their children. This helps in both their mental as well as physical development. Spending time with your children will help you to understand them, thus making your bond stronger. Read More →
Math is all about loving numbers and understanding how life revolves around it. Some of us still revel in the math fun games that we participated in. To hunker down a subjective list of the greatest mathematical discoveries of all time may be difficult, but here are a list of 5 greatest mathematical inventions in history:
If your five year old is just getting to know about the effective ways of travel in the big city, it important that you explain how various modes of transport available to us are changing by the day. A good learning platform about the best modes of travel can be taught through the environmental studies games often played in kindergarten and primary schools.
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Here are the top 5 types of transports systems popular in the global cities across the world:
- If increasing costs are anything to go by, the car still remains a luxury item for several people across the world. Nevertheless, it still remains a chosen medium for travel in cities across the world. With fuel and maintenance costs rising the car is increasingly being viewed in negative light throughout the world. Pollution and congestion worries are also part of the growing problem in cities across the world.
- If you want to go clean and green, you should be tempted to ride a bicycle in the much crowded streets of a busy city. The bicycle is one of the best and most preferred form of travel in the modern age. Young twenty year olds to the fit and athletic find it cheaper and healthier to travel in these. It is a cheap and an environmentally suitable method of transport. The only disadvantage is the fact that through bicycle travel, you could be exposed to the vagaries of nature at any time.
- Buses are the next most common type of transport that most city dwellers use. These are communal ways of travel and is most certainly an easy way too. Shorter journeys on buses can be cost effective, less demanding on natural ecosystems and causes minimum pollution. These are also a cheaper method of travel and help you travel in lesser costs.
- Trains are a popular method of transport too that is able to save time and is considered by urban planners the best mode of transport in an ultra-modern metropolis. Trains are cheaper than cars, effective in travelling long distances and can transport large hordes of people without much difficulty. Trains can run both overland and even underground. Large public transport systems in many of the world’s cities have trains in their fleet, making travel easy and affordable.
- If you are interested in a mode of transport that is still considered elite in developing countries, you must be talking about airplanes. Air travel is becoming a lot more affordable and easy as the aviation sectors across the world undergo a massive overhaul. Travel by air remains an expensive affair across countries and regions. It is still the most popular mode of transport that allows people to travel to different countries and regions in record time.
- Ships are the last modes of transport that allow people to sail across international oceans and water bodies. There are smaller versions of boats and ferries that are used by people in the local context too.
Children learn best about sanitation and healthy living when they attend environmental classes that stress on the basic healthy habits for a good lifestyle. Water bodies are increasingly becoming polluted in America and the entire world. Developing countries are facing the brunt of human behavior and this itself is making the quality of life extremely hazardous on Earth.
Here are a few water pollution facts for children to learn about the environment:
1. Nearly 40 per cent of all water bodies in America and 46 per cent of all the lakes in the country are polluted or are unfit for any swimming and aquatic activities. A large quantity of fishes and underwater ecosystems are gradually dying out because of pollution caused by industries and man.
2. Nearly 1.3 trillion gallons of sewage, untreated chemical wastes and industrial effluents are discharged into the water bodies annually. This is set to double given the current standards and may jeopardize life amid polluted waters in America alone!
3. More than half of the world’s population faces a water shortage and polluted drinking water afflicts about 250 million people worldwide resulting to about 10 million deaths every year.
4. In 2010, a huge oil spill in America, caused by ruptured wells in British Petroleum rigs led to a disaster in the Louisiana coast for about 400 miles. Over 1000 animals and birds, turtles and mammals died because of the water pollution and some humans too perished because of the spill. Only about 6 per cent of the damaged area was reportedly cleaned. In November 2012, the company agreed to a $4.5 billion settlement with the US federal government and paid a fine of $1.2 billion.
5. In developing countries, 70 per cent of all industrial wastes flow into water and plant Eco systems and pollute the soil and the drinking water supplies.
6. There is a problem of drinking water in 27 per cent of the world’s cities. A quarter of the world’s population, according to the World Water Assessment Programme, faces a drinking shortage with no piped water system in their homes.
7. Hundreds and millions of people across the developing world die due to cholera and malaria, along with other water borne diseases.
8. The nuclear crisis in Japan occurred in 2011, when a Tsunami damaged the Fukushima Daiichi Nuclear plant and caused 4 of the 6 reactors to crash. About 2 million gallons of radioactive water poured into the Pacific Ocean.
9. About 15 million children under the age of 5 perish each year because of the water borne diseases and polluted drinking water. The Ganges River, the source of life in the Indian subcontinent, the crucible of one third of humanity, is the most polluted river that contains trash, untreated sewage and animal remains.
10. Nearly 320 million people in China have no access to clean drinking water and about 20 per cent of the country’s groundwater is contaminated with cancer producing chemicals, because of high levels of water pollution.
Space travel has always been a stuff of dreams for many of us. The objects that orbit in space and the mysteries that surround its very existence is the stuff of many legends. Scientists are still discovering a lot of things that surround space and its functions. The vastness of space can be downright mind boggling and some of the most amazing facts are listed below:
1. Neutron stars are the high mass stars that are born in the core collapse supernova star explosions that are quite common in celestial history. These stars rotate at extremely high temperatures and have a rapid orbiting speed because of the physics. These stars rotate about 60 times in each seconds after they are born and in special cases, the rate of rotation increases about 600 times per second.
2. Sound waves travel through a medium of air in between objects. In space, this is not the case as there is no medium through which the sound can be transferred. Space, characteristically is eerily without a sound! Scientists and astronauts however, speak to each other through radio waves, which can travel despite the lack of a medium.
3. The stars in our galaxy – The Milky Way have been found and named after. However, the entire space has millions of more such galaxies. We have no estimate of how many stars exists in the other galaxies even now. Researchers at NASA conclude that there are zillions of uncountable stars and an Australian National University study, places the estimate at about 70 sextrillion stars!
4. The moon does not have an atmosphere and there is no wind or water that will erode or wash away the marks left by the Apollo astronauts. The footprints and discarded materials along with spacecraft imprints will be preserved on the moon forever. The moon is also in a state of dynamic environment, which means meteorites are constantly being bombarded into the moon’s atmosphere!
5. The Sun is a G-shaped main sequence star that helps fuse about 600 million tons of hydrogen to helium every second. About 4 million tons of matter is produced as energy and byproduct. Being the star that the Sun is, it might engulf the Earth and everything on it after another 5 billion years!
6. Solar energy is bets method to generate energy on Earth. Despite the huge benefits one can achieve through solar energy, humans of Earth produce about 1 per cent of all that can be produced at a given time. This is because. The land needed to capture the solar energy is simply not there. The technology is also very expensive and the awareness very little! Despite this, solar energy has grown about 20 per cent year on year on Earth in the last 15 years.
7. The process of cold welding is the single biggest technology that is used to produce spacecraft for space travel. The future of metal based construction undertaken in vacuum is going to be the key in building lasting space crafts on Earth.