Free energy is everywhere around us. There are many ways to make and collect energy from various sources like sun, wind and water. People also realize that everyday stuff can be a source of energy too. For example, riding a bike, running or just walking, etc. We simply have to change our way of thinking if we want to change the world.

    So comes the idea of solar roadways. Are they the road of future? Why use roads just for driving and collecting tolls (过路费)? Why don't we use them for collecting energy?

    The US Department of Transportation recently awarded $100,000 to Solar Roadways to build the first ever Solar Road Panel. So how do these future roads work?

    The Solar Road Panels will contain embedded (嵌入的) LEDs which “paint” the road lines from beneath to provide safer nighttime driving as well as to give drivers instant instructions such as detour (绕行) ahead. The road will be able to sense wildlife on the road and can warn drivers to “slow down”. There will also be embedded heating elements in the surface to prevent snow and ice buildup, providing safer winter driving.

    Replacing asphalt (沥青) roads and parking lots with Solar Roadway Panels will be a major step toward stopping climate change. Fully electric vehicles will be able to recharge along the roadway and in parking lots, finally making electric cars practical for long trips.

    We just can't wait to see more of these roads all over the world in the near future.

Food festivals around the world

Stilton Cheese Rolling

    May Day is a traditional day for celebrations, but the 2,000 English villagers of Stilton must be the only people in the world who include cheese rolling in their annual plans. Teams of four, dressed in a variety of strange and funny clothes, roll a complete cheese along a 50-metre course. On the way, they must not kick or throw their cheese, or go into their competitors' lane（赛道）. Competition is fierce and the chief prize is a complete Stilton cheese weighing about four kilos (disappointingly, but understandably the cheeses used in the race are wooden ones). All the competitors arc served with beer or port wine, the traditional accompaniment for Stilton cheese.

Fiery Foods Festival—The Hottest Festival on Earth

    Every year more than 10,000 people head for the city of Albuquerque, New Mexico. They come from as far away as Australia, the Caribbean and China, but they all share a common addiction—food that is not just spicy（辛辣）,but hot enough to make your mouth burn, your head spin and your eyes water. Their destination is the Fiery Food and BBQ Festival which is held over a period of three clays every March. You might like to try a chocolate-covered habanero pepper—officially the hottest pepper in the world—or any one of the thousands of products that are on show. But one thing's for sure—if you don't like the feeling of a burning tongue, this festival isn't for you!

La Tomatina—The World's Biggest Food Fight

    On the last Wednesday of every August, the Spanish town of Bunol hosts Ea Tomatina—the world's largest food fight. A week-long celebration leads up to an exciting tomato battle as the highlight of the week's events. The early morning sees the arrival of large trucks with tomatoes—official fight-starters get things going by casting tomatoes at the crowd.

    The battle lasts little more than half an hour, in which time around 50,000 kilograms of tomatoes have been thrown at anyone or anything that moves, runs, or fights back. Then everyone heads down to the river to make friends again—and for a much-needed wash!

    Someone sent me an email urging me to acquire a lot more resources, suggesting could do so much more good if I had an 8 or 9 figure net income of 6 like I've been doing for years. He claimed to have acquired a great deal of wealth himself and found it highly beneficial to fueling his path with a heart.

    As I consider his suggestion, I find myself not having much clarity(清晰的思维)as to what I'd do with I million or 10 million more money flowing through my life. I put so much attention on creativity, fulfillment, exploration, relationships, etc. that I find it difficult to intelligently imagine how more financial resources could provide extra fuel for that, except in small ways or in ways that aren't particularly meaningful to me.

    Lately I've been considering what it would be like to deliberately reduce my income for a while and see if I could live on much less，just for the experience. What if I capped my net personal income at $10,000 per year, for instance? That isn't such a big deal to me, though, since I already went through a period of low income like that during the 1990s, and I learned that I could still do what I love regardless of income.

    I've never worked in a business environment-the only job I've ever had was working for $6/hour in a video game store while I was in college. So I've never seen how larger operations allocate resources. That's probably why I haven't pushed myself to acquire more. As I mentioned in my book. Money and Your Path With a Heart，my main financial goal in life was to make money irrelevant in my life.

    I'm not interested in building an empire. What interests me is exploring personal growth and sharing what I learn along the way. In some ways I feel that acquiring and acquiring and allocating more resources could become a big distraction. I'm already doing what I want to be doing, so why rick distracting myself to acquire more resources, especially when I lack the idea about how I should treat such resources? I like having freedom and flexibility，and I don't really see how more resources would meaningfully improve that.

    A study based on data gathered by a NASA sensor has revealed China and India, the world's two most populous countries, are primarily responsible for making the Earth greener over the past two decades.

    The study, published on Feb 11 in the journal Natural Sustainability, has found that since 2000 the Earth's green leaf area has increased by over 5 million square kilometers. That's an area equivalent to the total of the Amazon rainforests. "China and India account for one-third of the greening, considering the general idea of land degradation (退化) in populous countries from overexploitation," said Chen Chi from Boston University, lead author of the study.

    The effect mainly comes from ambitious tree-planting programs in China and intensive agriculture in both countries, NASA said in a statement. China is the source of a quarter of the planet's increase in forest area, despite having only 6.6 percent of the world's vegetated (固定植被的)area, according to the study. Forest conservation and expansion programs account for 42 percent of the increase, and another 32 percent come from intensive agriculture of food crops, NASA said. While raising their green leaf areas, China and India have also greatly increased their food production through" multiple cropping" practices, where a field is replanted and crops are harvested several time each year. "Production of grains, vegetable, fruits and more have increased by about 35 to 40 percent since 2000 to feed their large population," NASA said.

    Over the past decades, China has made great efforts to green the land. In 1978, the central government launched a national-level forestation project-the Three North Shelterbelt Forest Program. By the end of 2017, the forest coverage rate among the regions in the project reached 13.57 percent, compared to 5.05 percent 40 years ago. In a greening project, Kubuqi Desert, seventh largest in the country, has seen one-third of its area covered by vegetation during the past three decades thanks to forestation efforts.

    Many of us don't pay much attention to the importance of eye care. It is said that if you take care of your body, then you can surely be healthy. That is why our eyes should be given a lot of care. Natural eye care should be put in a number one place.

    There are several causes leading to poor eyesight like having not enough food，genes(基因)and aging(老化). Televisions, computers and reading are also the causes of having poor eyesight. If you happen to work in front of the computer, it is best to take a break every once in a while. Something dirty can cause redness and they will make you feel uncomfortable. It is bad for your eyes, too. If this happens, the best way is to clean your eyes by using cold water. You must also try your best to protect your eyes from harmful things. For example, sunglasses are not just for fashion but they can also serve as a great way to protect your eyesight from UV rays.

    Eating healthy food will do good to your eyesight. Remember that vitamins A, C and E are good for eyes. Try to eat food groups that have these vitamins. And you should do eye exercises which can protect your eyesight, too. If a person exercises regularly(定期地)and eats the right kind of food, his eyes will stay in good condition for a long time.

    All above are natural ways of eye care that help us to keep healthy eyes. Being happy all the time can be helpful to a person's eyesight, too. In a word, eye care is very important，no matter how old a person is.

Coral reefs (珊瑚礁) as underwater walls can help reduce the effects of hurricanes on coastal communities. This seems unbelievable. It is reported that scientists have discovered that coral reefs are even more effective than man-made sea walls under the water. However, coral reefs are especially easy to be influenced by climate change. Overfishing and pollution have also proved very dangerous to them. Since 1950, half of the world's coral reefs have already been lost. To protect our communities and keep sea ecosystems alive, we need to protect coral reefs right away.

Let's take a closer look at how coral reefs protect us from floods, and how scientists are 1restoring (修复) reefs.

The roles that coral reefs play as underwater walls have long been recorded by scientists. During a Category 3 hurricane in 2015 in Australia, the coral reefs effectively protected the eastern shoreline from flooding. In contrast, the western coasts without coral reefs suffered serious damage. The researchers observed that the shape of coral reefs can break the approaching waves. More recently, researchers at the University of Miami have reached the same conclusion. They used a special lab simulator (模拟装置) to recreate ocean conditions during a Category 5 hurricane. They found that coral reefs could reduce the impact of waves by up to 95 percent!

Because of higher ocean acidity (酸性) and temperature, coral reefs are disappearing and dying out. At the same time, climate change puts weakened coral reefs under more stress. The University of Miami researchers are testing to plant new coral reefs while others are actively looking for effective methods to reduce the acidity of sea water. The governments have also paid more attention to these actions and provided enough money for reef restoration. With these efforts, we may address climate threats to coral reefs and they can carry on protecting our communities.