Both of my parents worked full-time when I was a little girl, so my grandmother would stay at our house during the day. We would watch game shows in the living room. Our favorite was The Price is Right. We would call out our answers along with the contestants.

    When I got older and started going to school, we couldn't watch our game shows regularly. That was okay with me, though, because the one thing I liked better than watching game shows with my grandmother was helping her bake. Watching her in the kitchen was amazing: she never seemed to need the recipes but everything she made tasted delicious.

    At first I would just sit in the kitchen and watch, even though I didn't understand what she was doing. As I got older, she let me help with the easy parts, such as measuring the sugar. The day she let me separate the eggs，I felt like I had found complete pleasure.

    At last, my parents decided that I could take care of myself，and my grandmother stopped coming over every day. The love of baking, however, stayed with me. I started baking by myself, and even if the cookies ended up burnt sometimes, more often they turned out pretty well. I tried out new recipes, and whenever I got to a thorny part, I would call my grandmother for advice. Sometimes I would call her just to talk, too. I felt like I could talk to her about anything.

    My grandmother passed away ten years ago, but I still think of her every day. Last week, I found a recipe book she made for me. It included her recipes for brownies, cookies, and my favorite, lemon pie. As I looked through the pages, I thought I could hear her voice. She was the one who taught me not just about baking, but about life.

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    Want to see 16 sunrises in one day? Float in zero gravity? Be one of the few to have gazed upon our home planet from space? In just four years' time, and for an astronomical $9.5 million dollars, it's claimed you can.

    What's being billed as the world's first luxury space hotel, Aurora Station, was announced Thursday at the Space 2.0 Summit in San Jose, California. Developed by US-based space technology start-up Orion Span, the fully modular space station will host six people at a time, including two crew members, for 12-day trips of space travel. It plans to welcome its first guests in 2022.

    “Our goal is to make space accessible to all,” Frank Bunger, CEO and founder of Orion Span, said in a statement. “Upon launch, Aurora Station goes into service immediately, bringing travelers into space quickly and at a lower price point than ever seen before.” While a $10 million trip is outside the budget of most people's two-week vacations, Orion Span claims to offer a real astronaut experience.

    During their 12-day adventure, the super-rich travelers will fly at a height of 200 miles above the Earth's surface in Low Earth Orbit, or LEP, where they will see incredible views of the blue planet. The hotel will orbit Earth every 90 minutes, which means guests will see around 16 sunrises and sunsets every 24 hours.

    Activities on board include taking part in research experiments such as growing food while in orbit--which guests can take home for a super-smug souvenir—and soaring over their hometown. Guests can have live video chats with their less-fortunate loved ones back home via high-speed wireless Internet access and, upon return to Earth, will be greeted with a specially arranged hero's welcome. While enjoying the thrills of zero gravity, the travelers will be able to float freely through the hotel, taking in views of the northern and southern Aurora from the station's windows.

    DepositsHYPERLINK “https://www.orionspan.com/aurora-station-reservations”（订金）are already being a HYPERLINK“http://www.orisonspan.com/aurora-station-reservations”cHYPERLINK“http://www.orionspan.com/aurora-station-reservations” cepted for future stays on the space hotel. The $80,000 is fully returnable, should applicants find themselves unable to rise to the full $9.5 million. Travelers will complete a three-month Orion Span Astronaut Certification (OSAC) program before takeoff. Orion Span has a team of space industry veterans who together have more than 140 years of human space experience.

    The day will come when renewable energy such as wind, solar, geothermal and others replace fossil fuels as the major source of world energy. However, most analysts insist that this day will not arrive for many decades to come—certainly well past the middle of the century. Systems of fossil fuels have already been firmly set up, and it is too costly or impractical to replace the existing systems with renewables. But there are good reasons to believe that the transition (转变) to renewables will come much faster than previously thought.

    It is hardly surprising that many experts say we will see a relatively slow transition from fossil fuels to renewables, given what is known about previous energy changes of this sort. "Energy transitions take a long time," observed Vaclav Smil of the University of Manitoba in Scientific American. It took more than 50 years for coal to replace wood as the world's leading source of energy and another 50 years for oil to replace coal; the change from fossil fuels to renewables, he argued, is not likely to come any faster.

    Under ordinary circumstances, Smil's forecast would no doubt prove accurate. But these are not ordinary times. Growing concern over climate change is leading to increasingly strict controls on CO₂ and other greenhouse gas (GHG) emissions (排放), while the development in renewables technology is lowering their price and speeding their installation.

    There are, of course, many difficulties in the effective control of carbon emissions, as demonstrated by coal companies to block the introduction of new rules by the US Environmental Protection Agency. Nevertheless, it is impossible to dismiss the progress being made at the local and international levels to promote the use of renewables. The European Union (E. U), for example, is well on the way to achieving a 20% reduction in GHG emissions from 1990 levels by 2020, along with a 20% increase in the use of renewable energy.

    The transition to renewables will be faster due to dramatic improvements in the pricing and performance of such systems. As a result of the steady increases in the efficiency of wind and solar systems, together with the savings achieved through large-scale manufacture, the price of renewables is falling globally. With prices dropping this fast, solar energy is now proving competitive with fossil fuels for generating electricity in many areas.

    The change from fossil fuels to renewable energy will not come overnight, and it will not escape many setbacks. Nevertheless, renewables are likely to replace fossil fuels as the main source of electrical power well before mid-century.

    God has a way of allowing us to be in the right place at the right time.

    I was walking down a dark street late one evening when I heard screams coming from behind a clump of bushes (灌木). Alarmed, I slowed down to listen and soon realized that what I was hearing was the unmistakable sounds of a struggle: mad fighting and tearing of clothes.

    Only yards from where I stood a girl was being attacked. Should I get involved? I was worried about my own safety, and regretted having suddenly decided to take a new route home that night. What if I became another victim? Shouldn't I just run to the nearest phone and call the police?

    The girl's cries were growing weaker. I knew I had to act at once. How could I walk away from this? I finally made up my mind. I could not turn my back on the fate of this unknown girl, even if it meant risking my own life.

    I am not a brave man, nor am I physically strong. I didn't know where I got the courage and strength, but once I had decided to help the girl, I became strangely different. I ran behind the bushes and pulled the attacker off the girl. Struggling, we fell to the ground, where we wrestled for a few minutes until the attacker jumped up and escaped.

    Out of breath, I stood up and approached the girl, who was behind a tree, sobbing. Not wanting to frighten her further, I at first spoke to her from a distance. "It's okay," I said softly. "The man has run away. You're safe now." There was a long pause and then I heard the words, spoken in wonder, in amazement. "Dad, is that you?" And then, from behind the tree, out stepped my youngest daughter, Katherine.

    Free Online Drawing Classes

    Drawing is a skill you can learn at any age. When you are ready, you can learn the basics of drawing by taking one or more of the free online drawing classes offered here. The websites all offer helpful instruction for beginning artists, and many of them offer classes at intermediate (中级的) or high levels. When you use the websites as your art instructors, you can log on to learn whenever you please.

    Artyfactory

    The Artyfactory Art Lessons Gallery offers free online art lessons that include basic drawing classes for pencil, ink and colored pencil. For visitors who want to expand their knowledge of art, the site also offers an Art Appreciation Gallery and a Design Lessons Gallery.

    Academy of Art University

    This free video class from the Academy of Art University called "How to Draw a Head" teaches you how to draw a head from a photo or from memory. The instruction is mainly on facial proportion (比例), expression and drawing basics.

    How to Draw It

    The How to Draw It website offers a simple approach to drawing animals and people. The animal tutorials (教程) are super easy to do, while the people lessons are a bit more difficult. All are free to visitors and making fast progress in your drawing skills is possible.

    Free Online Art Classes

    This site covers a range of art classes, but there are several free drawing tutorials for online learners, including: Learn Basic Drawing, Draw with Pen and Ink, and Learn Colored Pencils. Some of the classes are downloadable and some are in video form.

This was no ordinary class. The students who came together were all science or engineering professors at Cornell University. They had interrupted their research to accept an invitation to take part in an unusual experiment: "an interesting week of poetry". This class was part of a study to answer the questions: Why is science difficult for many non-science students? What can teachers learn about teaching if they take a class that is not in their field? 

The students in the poetry class listened to lectures and took notes. They had reading tasks and had to write three short papers. All students noticed one thing—the importance of spoken words. In science and engineering classes, the instructors put tables and drawings on the blackboard. But in this poetry class, the instructors just talked. They didn't write anything on the board.

The scientists and engineers noticed one similarity between science and poetry. In both subjects, students need to find layers of meaning. Some layers are simple, clean, and on the surface;   other layers are deeper and more difficult. This search for different levels of meaning doesn't happen much in undergraduate science classes, but it is important later, in a graduate school. And it is always important in humanities (人文学科).

Both the poetry instructors and their students learned something about teaching from this experience. One poetry instructor, for example, now sees the importance of using careful, clear definitions when he explains a poem. He also plans to be more informative as he teaches. Most of the scientists agreed on several points. Firstly, humanities classes might help science students to see patterns and decide which information is important. Secondly, the poetry class was fun. One engineer decided, "We need to change the way we teach engineering to make it an enjoyable experience for students."

But perhaps the most important result of the experience was this: all of the professors began to think about how they teach and how they can teach better.