Arcminutes to meters

With the satellite showing a band of heavy rain inbound from the east, a cold open was done without entering A101. In a scoop and go, the students present at 08:00 were taken west to the covered sidewalk between administration and the dining hall.

This term the tape measure was used at both 8:00 and 11:00. The tape measure makes more concretely clear the measurement of meters on the ground. 

This term the zero was shifted eat a few meters. The 53 meter mark doesn't make a good deal of difference. Start was off of the corner post by the dining hall. 

Calculations made ahead of class indicated that the iOS users could not use their Compass app and the perform the experiment in seconds: Compass free does not display decimal seconds, and the distances are too small to impact seconds. The ten meter intervals are just too small. While there are undoubtedly other GPS apps for iOS, the iOS users are simple told to team up with an Android user.

Tayshaun, Lanve, Austin, Leann, Elvanie setting up their phones, entering data.

Heavy rain moving in behind Vandasia.

Video of the conditions during the laboratory.

Getting a better reading at 50 meters by getting out from under the roof after the blowing rain. This was also where the wrap up was held. 

50 meters was the last data point.

1848 meters per arcminute is a reasonable estimate. -17581 is the distance in meters back to 158° degrees where the arcminutes would have been 0.000'

A break in the rain and lighter skies led to testing out the back walk of the health center. East was estimated to about 10° to the left of the centerline. Again the tape measure was deployed. There was a half-hearted attempt to run 10 degrees left rotation off of the centerline, but this was quickly abandoned. 

The view south from the start  these sidewalks are close to alignment with lines of latitude and longitude. While the north-south walk is covered, east is not.

All along the tape measure. All but one woman in this section is an iPhone user. Only about three students had Android phones with which to run GPS Essentials. 

30 meters was at the drain cover in front of the south entrance.

Data out to 70 meters using the Tripltek tablet. 70 meters was located out in the parking lot. There may have been enough space left to get to 80 meters before hitting the fence. 

This run turned in 1763 meters per arcminute. 

The tape was moved and measurements were continued to 60 meters. When Tommylee correctly estimate where 50 meters would occur, he was invited to estimate where 70 meters would occur. He was very close to correct. His spatial awareness is very keen. 

As the 70th meter was being measured, light rain began to fall. Dark skies to the southeast, and a local airflow from the south, suggested that the east porch was too exposed. The class moved to the west porch to wrap up. Despite rain coming in from the south, the west porch proved a well sheltered location. Neither class used the classroom.