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中学是人生最好的时光,美好的中学时代到底该怎样度过?几位中科院院士的成长历程对我们无疑是一个借鉴:他们中有教育世家之子,也有山村农民的后代,有少年成名的学霸,也有高考落榜的崛起者 ┄ ┄他们有的从小就立志要把中国人命名的定理写在未来的数学书上,把人生成长看作一场马拉松,坚持几十年奋斗不息;有的只上过一年半中学,“上山下乡”时却四处借书,几乎读完了当时所有能找到的书;有的爱好广泛,多才多艺,中学时就练钢琴、读小说、学画画;有的高考报志愿时放弃自己喜爱的天文专业,转向国家发展所需的地质专业┄ ┄

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    Businesses are finding more uses for Virtual Reality (VR) as the technology develops. VR is no longer only for gaming or enjoyment. An American company called Blue Goji is using VR to improve one's health by making exercise more fun.

    Blue Goji has offices in Austin, the capital of Texas. The company showed its cardiovascular (心血管的) workout machine, called the Infinity treadmill (跑步机), at the recent South by Southwest festival, an event held every year in Austin.

    A person using the treadmill wears a virtual reality headset when exercising. Before starting, the user tightens a belt to prevent falls. Then, the user plays a VR game while running on the machine. The game can transport the user into the virtual world, where he or she can be racing against virtual people.

    Recently, Leonardo Mattiazzi tested the Infinity treadmill. Mattiazzi said he had a strong feeling to actually get running and do something that pushed his limits. He said the experience was more interesting than running inside the gym without actually going anywhere.

    Constam said the active use of virtual reality helps solve a common problem while wearing a VR headset. She noted that a lot of VR experiences cause motion sickness because people are in motion during the game, but not moving in real life. But when the user is moving on the treadmill and in the game, the chances of motion sickness are reduced.

    However, users who tested the treadmill while wearing the VR headset each had a different experience. Constam said there generally is a learning curve for VR. The first time users feel lost, but "the more you do it, the more you get used to it," she said. Mark Sackler was a first time user. He said he felt a little sick at one point during the game. But he thought the experience was surprisingly realistic.

    After carefully studying the users' experiences, Blue Goji plans to make the treadmill available to the public in 2019.