Posts

Density of soap

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Laboratory 01 in SC 130 Physical Science focused on the linear relationship between volume and density for soap. The class began with a return look at Monday's demonstration . Measuring the mass of the vials did clearly demonstrate that the sinking vial was slightly more massive than the floating vials. Density calculations were complicated by the cap being slightly larger than the glass vial. Volume calculations attempted at 8:00 were plagued by measurement and mathematical errors. Misreading of the calipers and forgetting to halve the diameter both contributed to a confusing presentation. At 11:00 an attempt was made to determine the volume by displacement using the graduated cylinder. The complication is that the masses do not yield densities that predict floating and sinking. The floating vials massed at 13.2 and 13.4 grams. The sinking vial massed at 14.0g. By displacement, the volume of a vial is 14 cm 3 . Differences in the 1.575 cm diameter of the...

Jon Berger Luncheon

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A farewell luncheon was held for assessment coordinator Jon Berger at the Kaselehlie diner in Nett. Jon successfully coordinated the COMET entrance test, assessment, and accreditation matters during his time with the national site. He also proposed the Micronesian Cultural Center and drafted the first business plan.

Social media survey

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A convenience sample survey of 61 students in the MS 150 Statistics class at the College of Micronesia-FSM Palikir national campus 15 August 2011 asked about social media membership.   Site Sp 09 Fa 09 Sp 10 Fa 10 Sp 11 Fa 11 FaceBook 0 9 12 46 62 54 MySpace 32 45 33 33 45 29 Bebo 17 41 27 37 42 20 Other 8 16 26 25 16 12 None 9 13 10 8 8 4 Sample size n 54 74 58 66 72 61 Number of students with membership in the listed site by term Note that the columns do not add to the sample size as students can have multiple memberships.   Percentage of students with membership in the listed site by term FaceBook extended its dominant position among statistics students at the college...

Loss of plant words

I did a first day exercise with my ethnobotany class involving five plants. I had the whole class stand. I asked students to remain standing if they knew the name of the plant in their own language. I chose leaves from five plants that I felt ran from easiest to hardest: Breadfruit , Artocarpus altilis Bird's nest fern , Asplenium nidus Ixora casei . Melastoma malabathricum var. marianum (pisetikimei) Giant Caroline island ginger , Alpinia carolinensis (iuiu) Everyone stood up. When I held up the breadfruit leaf, no one sat down. I expected that. When I held up the Bird's nest fern I expected the Kosraean and possibly the Chuukese students to sit down. I was a tad shocked when everyone sat down. I then went around the room and cross-checked. Four young Pohnpeian men, and only four, knew the name. They stood back up - they had sat down because they were not sure. The four were able to name the next two, but none of t...

Density and Buoyancy Demonstration

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I modified and ultimately simplified a discrepant event demonstration that Dr. Thomas Scarlett III introduced me to at the Pacific Education Conference 2011 (PEC) here on Pohnpei. Dr. Scarlett was presenting as part of a Pacific Education And Research for Leadership in Science (PEARLS) that is based out of the Hawai'i/Pacific Basin Area Health Education Center (AHEC). Dr. Scarlett used three vials with liquids at different levels and a two fluids at different densities. I initially played around with this option, substituting clear virgin coconut oil for the second liquid. I put the graduated cylinder in the prep room and the coconut oil solidified. The unexpected complication was that the oil did not become clear upon melting - the oil remained milky. I did decide to use fluids of equal amounts in each vial. While I fascinated by the three different levels, I decided to make the discrepant event the floating and sinking of two vials with fluids at a common level. This reduc...

Mourning

Tonight the body of a volunteer teacher, the only daughter, returns to her grief stricken parents. She arrived on island only three weeks ago. A week ago on an outing to a waterfall, Lididuhniap, she was apparently climbing slippery rocks, and fell from a height onto the rocks below. There is no making sense of the loss of someone so young and full of the joy of life. If you traveled from afar to go work in Chicago and two weeks after arriving passed away as the result of a tragic accident, few in Chicago other than your immediate co-workers would be aware of your passing. On Pohnpei the governor, the state director of education, the state coordinator, of secondary education, an ambassador, and over fifty other people gathered to mourn the loss. A choir sang and tears were shed. I went not because I knew her, I did not. I only knew those who did. In the states there would have been little impetus for me to have attended a memorial service. By analogy, it would be as if someone rece...

Space, Time, and Matter

In the beginning, nowhere at no time was made of nothing. The perfect symmetry of absence was lost and a singularity became somewhere at some time made of something. Space, time, and matter came into existence. Space is about choice. Forward, backward, left, right, up, or down. You can go any direction. Up to you. Time leaves no choice. Relentlessly marching ever forward into the future. There is no going back. No left time, no right time. No up, no down. Only one direction. No choice. Mass is the mystery. Mass has no direction. Mass has no forward, no backward. No left. No right. No up. No down. Mass simply exists. Space is the questions how close, how far, which way, where am I, how high, how deep, how wide, how long. Space has lots of questions. Time is the questions when, how old, how young. Time has only few questions. Mass is the question how much. Mass has the fewest questions. Space is near, far, over there, here, on, over, under, above, below, big, small, narrow, ...