What We Should Know about Honey

The process that produces honey may have helped form humans too. Scientists believe that wild hives full of honey provided the calories that early humans such as Homo erectus (直立人), walking in Africa , needed to develop their brains into those of modern humans. That puts honey in a class with fire, tool use, and hunting as a key ingredient in the evolution of human beings.

With time, those evolved brains learned to domesticate bees to produce honey in a farmed setting. Today’s beekeepers support large-scale industrial farms, which would be unable to grow their crops without hiring traveling groups of bees to come pollinate (授粉) their vast, single-species fields. The bees will endlessly fill the towers of combs put onto their hives by the beekeeper, who then collects the extra honey for human consumption while still leaving the bees all they need to eat.

Today, the average American consumes nearly a pound and a half of honey every year, in tea, on toast, and beyond. Honey is a timeless treasure. Literally—it never goes bad. Samples nearly 3,000 years old found in the Egyptian pyramids are as eatable as the day they were entombed. Its anti-microbial nature also makes honey an excellent cure for wounds, keeping infection out while holding in the moisture that skin needs to heal.

However, bees’ good health is not guaranteed. U.S. beekeepers lose about 40 percent of their hives annually to colony collapse disorder. The problem lies in the growth of industrial agriculture and pesticide use, as well as changes in weather patterns, all of which reduce the number of flowers bees have to visit. If bees continue to die, apples and peaches (along with any crop that relies on their pollination) will become scarcer and pricier. As will honey.

For thousands of years, Chinese people have valued the large family with three, four, or even five generations living under the same roof. That's what we call an extended family. Now it is changing. Compared to extended families. nuclear families which involve only two generations living together are becoming the trend. Apart from family size, these families are also featured by reduced dependence on the last generation. Young people are able to make decisions on their own and children are less likely to be brought up by their grandparents.

The reason for the tendency of nuclear families can be reflected as follows. It's a time when young people think highly of individual freedom. Young people like to have personal space that won't be disturbed by the old generations. In this way, they are more likely to avoid conflicts caused by different living habits from their parents.

It's also a time when social welfare institutions are highly advanced for old people to lead a comfortable life . Senior citizens can live together in some nursing homes and be taken good care of by specialized nursing workers, which may base young people's heavy burden of attending their aging parents.

However, the problem concerning attending to children turns up as the number of nuclear families increases. Young people are busy with their work and spend less time with their children. As a result, lacking enough care both from their parents and grandparents during their growth, children may develop mental illnesses like loneliness and depression. Many young people, therefore, hire babysitters to look after and keep company with their children, which adds a financial burden to them.

Facing the problem above, young people can seek help from old generations, communities and government. Old generations are welcomed to take care of their grandchildren, especially when young people are asked to work overtime. Communities ought to organize some volunteers to look after unattended kids. And government can set up special loads for young people to relieve their financial problem. With the joint efforts, nuclear families are expected to fit in well with the development of the society.

A Wise Way to Make Families Rules

All groups, of whatever size or nature, need standard operating procedures. Without them, groups may very well fall into confusion, chaos and conflict. The functions that rules can serve are indispensable. When it comes to parenting, making rules can make a big difference in our family as well. Actually, the issue is not whether our families need rules. We do need them. The real issue is how to motivate all family members to comply with (遵守) them.

At some time in our lives we all have felt unmotivated to comply with some rule or policy that we had no voice in making. Denied the opportunity to participate in establishing a rule, most people feel imposed upon and resentful of the new rule. But when people actively participate in setting a rule or making a decision that will affect them, they are more highly motivated to comply with it. We call this the Principle of Participation, and it has proven its effectiveness in families as well.

When children are given the opportunity to participate in setting rules or making decisions that will affect them, several good things happen. Children feel better about themselves — having more self-esteem (自尊心) and self-confidence. Such a good effect is due to their feeling that they have gained more “fate control” over their own lives. They also feel they are equal members of the family with an equal voice in making decisions and establishing rules — they’re part of a team, not second-class citizens. This means that families that function collaboratively and democratically will have closer and warmer relationships than those in which the adults act as bosses or authorities expecting the children to obey the rules made for them.

Another important reason for encouraging the full participation of family members in decision making is that it often produces higher-quality solutions to problems. Two heads (or three, or four) are better than one. Shared decisions will be based not only on the knowledge and experience of the adults but also on those of the children. The admonition (告诫) that father knows best should be challenged now.

Light the Cities of the Future

A previously unlit cycle path in the Netherlands has recently drawn our attention. It has been resurfaced with a material that consists of thousands of shining stones in order to create a well-lit route. The Van Gogh Path, so called after the artist who lived in the town of Nuenen in 1883, combines the traditional with the contemporary in a gesture that acknowledge ledges Van Gingh’ masterpiece The Starry Night, but also shows the way ahead for city lighting. The Van Gogh Path is not a single case; it is not difficult to foresee a time when natural materials could help light the cities of the future.

Why should we care about city lighting? What’s wrong with current electrical city lighting anyway? Well, the problem that it causes is two-fold. First, of course, electrical lighting in most cities comes from non-renewable resources. According to the International Energy Agency, almost 20% of global electricity is consumed for lighting, which is responsible for high levels of carbon emissions. But there’s also the belief that electrical light itself is a form of pollution by destroying our view of the night sky.

From the above reasons, then, it seems wise to investigate other approaches. The city of Glasgow is attempting to use intelligent street lighting to monitor how citizens interact with the urban landscape and minimize electrical consumption and thus emissions. This “Smart City approach” is seen by many as the way of the future, but some designers aren’t convinced. They are pioneering the altogether more original approach of using materials from the natural world in order to replace electrical light entirely. They believe that this new “technology” can one day completely replace microchips and digital systems as we find better ways of making use of the light-producing mechanisms (制) that already exist in the natural world.

The Blue Light From Digital Device

More devices like the iPhone, iPad and Kindle produce a blue light that causes our sleep to be restless and disturbed, according to a new study.

The study was led by Dr Paul Gringras, a sleep disorder specialist at a children's hospital in London. Together with her colleagues, Gringras found that manufacturers have started making bigger, brighter, bluer screens in an effort to increase the efficiency of our screens during daytime.But, as an unwanted byproduct, this light is affecting our sleep and productivity.

The study said that this type of light is likely to cause the most disturbance to sleep, as it most effectively overpowers melatonin (褪黑素). a hormone①that reminds us to sleep every night. Besides, using our devices before bedtime could even affect our performance during the day, because exposure to this blue light changes our body's natural rhythms.

“The development of light-producing devices means that for many people, a 'book at bedtime'is now often an‘e-book’,” Gringras pointed out.“Reading a traditional paper book by the light of your bedside lamp doesn't affect your sleep, because bulbs produce a yellow-red light. In comparison, the same book read in electronic arrangement will provide a very different light signal with biological effects.”

The researchers called on all device manufacturers to adjust screen lighting for the sake of the users’sleep quality and overall health.“All hardware devices should have an automatic “bedtime mode”that shifts blue and green light production to yellow and red as well as reduces backlight/light intensity,” Gringras said.

“And, we hope that as technology improves, more and more people will realize that‘brighter’will not always be equal to‘better’,”the researchers concluded.

① hormone: a chemical in your body that stimulates certain organs of your body