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faq.md

@@ -98,24 +98,24 @@ considerations:
     ~5Km optical fibber roll induces a change in the delay at the order
     of 0.1ns. Sagnac effects over an extended 10Km fibber would add an
     additional asymmetry of only ~0.1ns on the earth equator. This means
-    that a simple two-way scheme over an spare fibber has the potential
+    that a simple two-way scheme over an spare fiber has the potential
     to do a time-transfer between two points separated by 10Km with ~1ns
-    accuracy or better if especial care is taken during the measurement
-    and monitoring of the feedback delay is enabled. 
+    accuracy (or better if especial care is taken during the measurement
+    and monitoring of the feedback delay is enabled). 
 3.  Delay paths should include as many components as possible in order
     to reduce any systematic error.
 
 
 ### These fibers are not length-compensated on-line. What is the length change throughout the year?
 
-The fibber delay tempco is at the order of 50ps/Km/C. The fibbers in
-Gran Sasso are buried deep underground where temperature changes below
-1C are expected. This represents a maximun change inferiour to 1ns
-thourghout the year in the OPERA fibber. At CERN we have ~2Km of fibber
-between the CERN's Control Room (CCR) and HCA442. This fibber is not
-buried as deeply as the one used in LNGS. If we take that the fibber is
-buried at 1m ,the temperature change could be of ~15C. This implies a
-possible change on the fibber delay of 1.5ns.
+The fiber delay tempco is at the order of 50ps/Km/C. The fibbers in Gran
+Sasso are buried deep underground where temperature changes below 1C are
+expected. This represents a maximun change inferiour to 1ns thourghout
+the year in the OPERA fibber. At CERN we have ~2Km of fiber between the
+CERN's Control Room (CCR) and HCA442. This fiber is not buried as deeply
+as the one used in LNGS. If we take that the fiber is buried at 1m ,the
+temperature change could be of ~15C. This implies a possible change on
+the fibber delay of 1.5ns.
 
 Additionally the electronics could be affected by temperature changes.
 We have tested in the lab that after heating with a hot gun the CTRI