首页
登录
职称英语
The human body contains enormous quantities of energy. In fact, the average
The human body contains enormous quantities of energy. In fact, the average
游客
2025-03-28
31
管理
问题
The human body contains enormous quantities of energy. In fact, the average adult has as much energy stored in fat as a one-ton battery. That energy fuels our everyday activities, but what if those actions could in turn run the electronic devices we rely on? Today, innovators around the world are banking on our potential to do just that.
Movement produces kinetic energy (动能), which can be converted into power. In the past, devices that turned human kinetic energy into electricity, such as hand-cranked radios, computers and flashlights, involved a person’s full participation. But a growing field is tapping into our energy without our even noticing it.
Consider, for example, a health club. With every step you take on a treadmill and with every muscle curl, you turn surplus calories into motion that could drive a generator and produce electricity. The energy from one person’s workout may not be much, but 100 people could contribute significantly to a facility’s power needs.
That’s the idea behind the Green Microgym in Portland, Oregon, where machines like stationary bikes harvest energy during workouts. Pedaling turns a generator, producing electricity that helps to power the building. For now, body energy supplies only a small fraction of the gym’s needs, but the amount should increase as more machines are adapted. "By being extremely energy-efficient and combining human power, solar and someday wind, I believe we’ll be able to be net-zero for electricity sometime this year," says the gym’s owner, Adam Boesel. His bikes, by the way, aren’t the first to put pedal power to work. In some parts of the world, cyclists have been powering safety lights for years with devices called bicycle dynamos, which use a generator to create alternating current with every turn of the wheels.
Dance clubs are also getting in on the action. In the Netherlands, Rotterdam’s new Club WATT has a floor that harnesses the energy created by the dancers’ steps. For now, it’s just enough to power LED lights in the floor, but in the future, more output is expected from newer technology. [br] Using human body energy as power supplies ______.
选项
A、requires us to be strong
B、is a great new idea
C、proves to be difficult
D、is increasingly popular
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/4015919.html
相关试题推荐
Theyearsbetween1870and1895broughtenormouschangestothetheaterint
Theyearsbetween1870and1895broughtenormouschangestothetheaterint
Theyearsbetween1870and1895broughtenormouschangestothetheaterint
Somepeopleholdthat,sinceweliveinamoneyorientedsociety,theaveragein
Thehumanbodycontainsenormousquantitiesofenergy.Infact,theaverage
Thehumanbodycontainsenormousquantitiesofenergy.Infact,theaverage
Thehumanbodycontainsenormousquantitiesofenergy.Infact,theaverage
Thehumanbodycontainsenormousquantitiesofenergy.Infact,theaverage
DespitetheenormouscontributionofthemusicindustrytotheUKeconomyand
DespitetheenormouscontributionofthemusicindustrytotheUKeconomyand
随机试题
Theterm"Americandream"iswidelyusedtoday.Butwhatexactlydoesthisc
PreparingforWeightLossSurgeryForthose
OnegreaterbenefitoftheWebisthatitallowsustomoveinformationonli
Theremustbefewquestionsonwhichresponsibleopinionissoutterlydivid
ThepopulationofAfricanforestelephantsplummeted62%inthepastdecade.
直角构件受F=150N,力偶M=Fa/2作用,a=50cm,θ=30°,则该力系
B
下列哪项是虚热证与实热证的鉴别要点A.发热口干 B.盗汗颧红 C.大便干结
A.犬吠样咳嗽 B.刺激性咳嗽 C.干咳 D.阻塞性咳嗽 E.带金属调咳
投资项目决策分析与评价的基本要求包括贯彻落实科学发展观、资料数据准确可靠和()
最新回复
(
0
)