Several companies are racing to produce electronic paper and ink, complete with colors and moving imagines(图像). One idea would be to create a newspaper like The Daily Project in the Harry Potter books. Its pages would hold video clips of baseball games instead of just black-and-white photos.

   Electronic paper is not a new idea. A company in Massachusetts called E ink, for example, has been working for years on such a technology. Little electricity determines(决定)whether each microsphere(灌球)looks black or white at any given time. Together, microspheres make up words and imagines. The techniques seems promising for creating still imagines that can be changed when needed, but the process(进程)is too slow for good videos.

Scientists in the Netherlands now report a new type of e-paper technology. By using layers(层) of oil, the requirements. They can also make images which change fast enough to meet standard video requirements. They can also make brilliant colors. So far, however, each image is smaller than the fingernail.

For now, readingand watching TV will have to return two separate activities. Keep your eyes open, though, in the future, TV watching and reading might be part of the same work.

If you are riding a bike in foreign countries, you need to know what these traffic signs mean.

1		This sign means “walk”, you can cross the street along with other people.
2		This sign is the “don't walk” sign. It means you should stop to wait for a while until the sign of “walk” is showing.
3		This sign means that there is a bike lane. If you see such a sign, you must use the bike lane.
4		Car drivers and bike riders must come to a complete stop at “STOP” signs.
5		This sign means you are coming to a zebra crossing. You must slow down to allow people in the zebra crossing to cross the street.
6		This sign means parts of the road are rough. Be careful! Rough roads make you fall off your bike.

    Chinese companies lead in global 5G patent applications(专利应用) with Huawei taking the crown, according to a report by IPlytics, an authorized patent data company. Three companies from China were included in the top 10 list of 5G Standards﹣Essential Patents(SEPs)family owner. Huawei ranked first. ZET Corp, and China Academy of Telecommunications Technology (CATT)grabbed fifth and ninth places, respectively.

    Chinese companies topped the list for most 5G SEPs applications in communication systems by the end of April 2019, accounting for 34 percent of the world's total. Chinese tech giant Huawei has taken a leading role by owning 15 percent of SEPs, according to the report Who Is Leading the 5G Patent Race？

    5G SEP are patents that any company will have to use when carrying out 5G technology and no one can avoid them.

    Different from 3G and 4G technologies, 5G technology will influence various industries and encourage the appearance of many new products, services and industries.

    The automotive sector will most likely be one of the first industries to depend on 5G, which will connect vehicles to other vehicles, roadsides, traffic lights, buildings and the Internet, according to the report.

    "It is 5G that is going to be a huge jump forward for communication systems because only with 5G's higher bandwidth can a number of applications be more advanced (尖端的) and used by most consumers," said Nicole Peng, senior director of the market research company Canalys.

    As 5G technology has combined various industries and technologies, the number of 5G SEPs rose to more than 60,000 globally by the end of April 2019, the report said.

    Some people wonder why countries spend millions of dollars on space projects. They want to know how space research helps people on Earth. Actually, space technology helps people on Earth every day. This is called "spinoff technology". Spinoff technology is space technology that is now used on Earth.

    In early space programs, such as the Apollo missions(任务) of the 1960s and 1970s, and in the space shuttle missions today, scientists developed objects for the astronauts to use on the moon and in space. We now use some of these objects every day. For example, we have Quartz clocks and watches with an accuracy of one minute a year. We purify the water we drink with a water filter(过滤器) designed for the astronauts' use in space. The cordless, hand-held tools we use in our homes, such as cleaners, flashlights, drills, and irons came from the technology of these early space programs.

    On cold winter days, we can stay warm with battery - operated shoes and socks, and insulated(绝缘的) coats and jackets. All of these clothes are similar to the spacesuit designs that keep astronauts comfortable in the temperatures of the moon, and are spinoffs from space technology.

    These products are only a few examples of the many ways space technology helps us in our everyday life. No one knows how new spinoff technology from the International Space Station will help us in the future.