Deadlines and extensions

We present one of the first cosmic ray muon flux-angle variation experiments on QuarkNet Cosmic Ray Detector (QNCRD). describe QNCRD and its calibration. The main focus is then quantifying flux decrease as a function angle from zenith. counters were incremented 15 degrees average every $3.1$ days over range 0 to 90 for period approximately month. Results showed that detector increased zenith, decreased, which agrees with previous studies. An estimate based model $I(\theta)=I_0cos(\theta)^n$ had an exponent value $n=1.39 \pm 0.01$ $\theta < 75$ degrees, underestimate values in other literature. These findings provided reasonable, although not entirely accurate, $n$ considering duration study sensitivity instrument. Our results constrain accuracy provide source future long-term experiments. This also demonstrates feasibility conducting science high school classrooms, increasing accessibility.