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Practice Reading: Reading and Writing Fill in the Blanks ID: #51206 New Radio Tuner
Instructions
It's  happened  to  all  of  us.  You're  on  your  cell  phone,  your  boss  is  saying  something  important,  and  then  the  connection  starts  to  drop  out.  Now  a  team  of  physicists  in  Denmark,  led  by  Albert  and  Eugene  Polzik,  has  demonstrated  a  new  kind  of  radio  tuner  that  is  far  more  sensitive  to  faint  signals.  The  technique  could  eventually  mean  fewer  dropped  calls,  better  GPS  coverage,  faster  Wifi,  and  much  more  detailed  images  from  MRI  scanners.  The  tuner  includes  a  novel  component:  a  tiny  reflective  membrane  just  half  a    on  a  side  and  only  a  hundred  nanometers  thick.  It  functions  in  the  circuit  as  a  capacitor,  and  when  radio  waves  pass  through  the  antenna,  the    voltage  shifts  make  the  membrane  bounce  like  a  trampoline.  Laser  light,    off  the  membrane  and  then  interfering  with  itself,  turns  those  nanometer-high  wiggles  into  a  strong,  clear  signal.  The  report  is    on  the  site  arXiv.org.  The  scientists  are  excited  about  how  the  technology  might  sharpen  the  pictures  produced  by  radio  .  But  wouldn't  it  also  be  nice  to    get  decent  phone  reception  inside  a  parking  garage?

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