Well i just recently achieved it . Tho i am not sure how and why XD <| sep |> Dez and Norman were best buddies in Week 2 . Wonder if Norman started to get more into being a Redskin . <| sep |> How can you find out if you ' re phone is still under warranty ? My phone just dies at 15 percent . I don ' t even get a warning . <| sep |> No , chabon , no se puede creer <| sep |> How is that low frequency wavelengths like radio waves , and very high frequency waves like xrays can pass through an opaque object but wavelengths within our visible spectrum which are much higher than radiowaves will stop dead when they hit an opaque object ? A very good question . It ' s all a matter of magnitude . Xrays are so small in wavelength that will pass through most materials up to a certain thickness they just go through the atoms like a marble thrown into a fishing net . Radio waves are generally so big 1 MHz , right in the middle of the commercial AM band , corresponds to 300 m that they just don ' t care about some thin walls , even though they will not , most of the times , reach inside a tunnel or a cave . Visible light has just the adequate wavelength to get stopped by those materials that we call opaque .