Posted by on under fcc limits, radio exposure, radio waves, internet packets, quarter inches, low signal, speed increase, iphone, signal strength, iphe, phe, antenna, fcc, flesh, fingers | 
For me it's been quite obvious but I am surprised how many iPhone owners I see complaining about EDGE speeds when they're covering the antenna (that black plastic area on the back of the phone) with their hand.
A very useful tip for those using EDGE: Take your hand off the antenna! Your meaty fingers are absorbing all the Internet packets.
The advantage is especially obvious when you have low signal strength - but even when I have full bars, I see a 50% speed increase when my flesh isn't absorbing all of those radio waves.
Let's not forget that the warning manual that comes with the iPhone (you
did read it, didn't you?) says your flesh must remain three-quarter inches away from that antenna otherwise you exceed FCC limits for radio exposure.
Tagi: fcc limits, radio exposure, radio waves, internet packets, quarter inches, low signal, speed increase, iphone, signal strength, iphe, phe, antenna, fcc, flesh, fingers
Posted by on under wing screw, macbooks, aluminum cases, easure, fri, tri wing, source link, unibody, shreds, alarms, antenna, nbsp, no surprises, bluetooth, hub, intel |
By now, the fine folks at iFixit have probably seen the insides of
more MacBooks than they care to count, but the guilty pleasure of ripping those aluminum cases to shreds keeps them (and us) coming back for more. This week, while we gave our new 15-inch MacBook Pro a
thorough review, they were busy tearing theirs apart and admiring the juicy insides. Aside from the obvious processor upgrade, not much has changed since 2009 except the odd antenna and tri-wing screw, but it appears that the AirPort / Bluetooth assembly now resembles that of the 13-inch unibody MacBook. You will also find nice hi-res shots of the brand-new Intel BD82HM55 Platform Controller Hub -- also known as Intel's HM55 Express chipset -- at the source link.
15-inch Core i5 MacBook Pro torn asunder: no alarms and no surprises originally appeared on Engadget on Fri, 16 Apr 2010 03:32:00 EST. Please see our terms for use of feeds.
Permalink |
iFixit |
Email this |
Comments
Tagi: wing screw, macbooks, aluminum cases, easure, fri, tri wing, source link, unibody, shreds, alarms, antenna, nbsp, no surprises, bluetooth, hub, intel
Posted by on under iphone 4, iphone, antenna, sg, peace |
In just a few hours, the world will know what exactly to make of the iPhone 4 antenna
situation. Or maybe we won't. But Apple is going to
tell us something about the device. And hopefully everyone up in arms about the device can find some peace. Until then, how about a song?
Tagi: iphone 4, iphone, antenna, sg, peace
Posted by on under iphone 4, digg, iphone, decal, bumpers, antenna |
I hope someone makes the "End Call" iPhone 4 decal for real, just like the iPhone 4 antenna bandaids. It looks to me like a more stylish solution to the antenna problem than the free Apple bumpers.
Tagi: iphone 4, digg, iphone, decal, bumpers, antenna
Posted by Jason Kottke on under electromagnetic waves, tv signals, breast cancer, wrg, standing wave, box spring, bed frames, scientific theory, peer reviewed journal, grain of salt, fm radio, western countries, quack, wavelength, scientific american, melanoma, pathophysiology, 1940s, a |
Rates of breast cancer and melanoma in humans are on the rise and appear to favor the left side of the body. A suspected cause is that the box springs in our beds act as antennas to focus the EM radiation from FM radio and broadcast television directly into the left sides of our bodies. No, really:
Electromagnetic waves resonate on a half-wavelength antenna to create a standing wave with a peak at the middle of the antenna and a node at each end, just as when a string stretched between two points is plucked at the center. In the U.S. bed frames and box springs are made of metal, and the length of a bed is exactly half the wavelength of FM and TV transmissions that have been broadcasting since the late 1940s.
(thx, anna)
Update: So, you know when you run across something about some current scientific theory or hypothesis on a blog or in a magazine or newspaper or even in a scientific journal, there's a fair chance that whatever the article says is misleading, misstated, or even incorrect. That's just how it is and if you didn't know, now you do. Take this stuff with a grain of salt. It's why I use phrases like "suspected cause" instead of something like "box springs and FM radio proven to cause cancer".
I don't post things like this because I think they're right, I post them because I think they are interesting. The geometry of TV signals and box springs causing cancer on the left sides of people's bodies in Western countries...that's a clever bit of hypothesizing, right or wrong.
In this case, an organization I know nothing about (Vetenskap och Folkbildning from Sweden) says that Olle Johansson, one of the researchers who came up with the box spring hypothesis, is a quack. In fact, he was "Misleader of the year" in 2004. What does this mean in terms of his work on box springs and cancer? I have no idea. All I know is that on one side you've got Olle Johansson, Scientific American, and the peer-reviewed journal (Pathophysiology) in which Johansson's hypothesis was published. And on the other side, there's Vetenskap och Folkbildning, a number of commenters on the SciAm post, and a bunch of people in my inbox. Who's right? Who knows. It's a fine opportunity to remain skeptical. (thx, tom)
Tags: cancer medicine physics science
Tagi: electromagnetic waves, tv signals, breast cancer, wrg, standing wave, box spring, bed frames, scientific theory, peer reviewed journal, grain of salt, fm radio, western countries, quack, wavelength, scientific american, melanoma, pathophysiology, 1940s, a
