Since the old times, art has always been with us. Art has always been very important to people. It shows our feelings, ideas, and what we see around us. From the first simple cave drawings to the latest computer art, the way art has changed is a very interesting part of human history.

【小题1】 This was a time when art was really amazing. Artists like Leonardo da Vinci and Michelangelo made art that went beyond what was done before. They made beautiful things that also showed a new way of looking at the human body, how things look from different angles, and how light works.

But art is more than just pretty. Art isn’t just about looking nice. 【小题2】 In history, artists have used their art to ask questions about how society works, and to show they don’t agree with things. For instance, in times of significant social movements, art on walls and posters became a way for people to show they wanted changes.

Art can make us think and inspire us to do different things. In the 1900s, artists started making abstract art. 【小题3】 Artists like Picasso and Wassily Kandinsky used shapes and colors in new ways to make us feel emotions and think about ideas without showing real things.

How art grows also shows how technology gets better over time. 【小题4】 Digital art can be anything made with a computer or shown online. It has changed what we think art is. It also lets more people see and make art because you just need a computer to do it.

Art serves as a universal medium for the exchange of ideas, transcending (超越) language and cultural barriers. It allows for a form of communication that is accessible to all. It is away of sharing ideas with everyone. 【小题5】

A “virtual (虚拟的) cocktail” glass that lets you change the flavor (味道) of your drink using your Smartphone has been developed by scientists.

Offering a customizable (定制的) range of drinks and tastes, the Vocktail can change a glass of water into a cocktail at the press of a button. The world’s first technology tricks your brain into thinking it is experiencing a specific flavor by fooling your senses of sight, smell and taste.

Developed by researchers at the National University of Singapore, the glass’ three sensory components are controlled via a Smartphone App. Because the software can combine a number of smells, colors and tastes, the Vocktail can create almost any flavor.

Developer Nimesha Ranasinghe said: “Our approach is to increase drinks flavor experience by overlaying outer sensory stimuli (刺激物). For example, in the Vocktail we overlay color, taste and smell sensations to create an adjustable flavor experience. Flavor is mainly how we feel food and that is achieved through the use of these senses. Therefore, by changing the color of the drink, using different smells and changing the taste through electricity, we are able to copy the flavor of a drink without it actually changing the liquid.”

The glass houses three fragrance containers connected to micro-air pumps. The pumps release smell that change your feeling of the drinks, flavor. For example, a lemon fragrance will trick your brain into believing it is tasting lemon-flavored drink.

On the outside edge of the glass are two electrode strips (电焊条) that send electric pulses into your tongue to stimulate your sense of taste and flavor differs with different pulses.

The giant panda’s special black-and-white fur makes it one of the most recognizable animals on the planet. But why does it have this unique coloring? To hide from natural enemies, both in the snow and in the shadows, study lead author Tim Caro, a professor in the Department of Wildlife, Fish & Conservation Biology at the University of California, Davis, said in a new statement. Moreover, the large black circles around a panda’s eyes may help other pandas recognize it, the researchers said.

Understanding why the giant panda has such noticeable color has been a long-term problem to solve. To find out the answer, Caro and his colleagues looked at photos of pandas and 195 other carnivore(食肉动物) species, including 39 subspecies of bear. Then, they recorded the coloring on each area of those animals’ bodies, and compared them with areas of the panda’s body. “Compared with the previous studies, the breakthrough in this study was treating each part of the body as an independent area,” Caro said.

The research team tried to figure out the purpose of the dark-colored furry areas. After going through many comparisons, the researchers determined that the white parts of the giant panda help it hide in the snow. In contrast, its black arms and legs help it hide in the shadows, they said. The panda’s white-and-black coloring didn’t appear to be related to temperature regulation. Nor did they find evidence that the dark circles around a panda’s eyes helped to make them look cuter.

“This really was a great effort by our team, finding and scoring thousands of images and scoring more than 10 areas per picture from over 20 possible colors,” study co-author Ted Stankowich, an assistant professor of biology at California State University, Long Beach, said in the statement. “Sometimes it takes hundreds of hours of hard work to answer the simplest question: Why is the panda black and white?”