Very cool. I did something similar with an ESP8266, and an iftt web hook configured to flash the hue lights in my house and SMS me. I think texting is no longer offered by iftt.
you can still email a phone number. there are common email extensions for various carriers like 5558675309@vtext.com for Verizon for example. you can get the carrier email extension by sending a text message to an email address. it will be in the reply line of your email client.
could someone please explain this, i wish i could say i get it, but i am so confused. i don't understand, are they not using gps just to synchronize the clocks on both ends? what does it matter if in orbit the distance seems shorter or longer if observed (viewed) from the satellites (is this what they are saying?)?
The simplest way I can (try to) understand it is to imagine a line drawn between CERN and Gran Sasso. From the GPS point of view(consider the GPS satellites as stationary), this line is moving approximately in a Gran Sasso->CERN direction, and is therefore very slightly shorter than what the researchers on the ground calculated
Let's suppose you're trying to time a 100 yard dash based on sound. Someone fires a gun, the race starts, and when the first runner crosses the finish line another gun is fired, you determine the elapsed time.
There are obvious things to correct for -- e.g. if you're standing at the finish line the sound from the finish line will take 1/3 of a second (roughly) to get to you, so you need to adjust your calculation.
Now suppose that you are standing off on a barge during the race. You know the distance to the start and finish lines but ignored the drift of the barge because you figured it was insignificant.
We're talking 60 nanoseconds. The satellites are moving at tens of thousands of miles an hour.
