experiment was determine some of the factors (material type, color of the absorbing surface) that affect the absorption of heat energyThe inside of a shoe box was insulated using Styrofoam and a thermometer was placed through a hole inside the box2 absorbing surfaces were made from aluminum foilThe upper surface of one sheet was painted black and the other left shinyThe following tests were then carried out.A sheet of shiny aluminum was placed in the bottom of the boxThe top of the box was covered with glass and the temperature of the air inside the box was recordedThe lamp was then turned on and the temperature was recorded after 3 minute.The procedure was repeated, this time using the blackened aluminum as the absorbing surfaceThree set of data were collectedOne test was done with the glass cover, one without the glass cover and the third with a glass cover but at an angle of 45?Okso y is it that more heat is absorbed when aluminun is black and covered?
1) more heat is absorbed by the blackened aluminum because black absorbs heater better than all other colors or reflective surfaces 2) more heat is MEASURED in the box when the box is covered because the heat can not escape from the box by convection - which is how most heat moves around in the earth's atmospherewe thing about radiation and conduction being the way heat moves around most, but it is really the convection that accounts for most heat movement, within our atmosphere.
Either the person was pretending to be Jewish or this story is a pretense (personally I go with the latter)He isn't permitted to ask you to turn it onThere wouldn't be any point in giving you his phone number, since if he was observant he wouldn't answer the phoneI can't imagine why anyone would give a stranger keys to his house.
You were being scammedNo observant Jew would ask anyone to do thatHe might invite you into his house, and if YOU were to suggest turning on the A/C, he wouldn't objectAsking others to do it for you is the same as doing it yourself.
Orthodox, Shabbat - Not allowed to(And now you know why Christians are grateful not to be under the Law of the O.T.)
