For example, if your brother is old enough not to play with his plastic bike, why not give it to another family who has a little kid so that they don't need to buy one? And one less large plastic toy doesn’t need to be produced. Recycling has never been easier. Many organizations...
The Learning Design Sequence model, developed within DfL is used as a basis for the lesson design and as an analytical tool. The analyzed data were generated by filming when pupils participated in multimodal learning activities, created digital animations, and participated in meta-reflective ...
The reference system is actually a RO desalination unit driven by the mechanical power of the wind turbine. The layout in Figure 1a is selected as a reference system to quantitatively and qualitatively measure the amount of extra freshwater produced via waste heat recovery from the generator of ...
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Advances in forensics are giving us an unprecedented ability to solve cases—and exposing mistakes in some investigations.
COOLMAX is a specially engineered type of polyester exclusively produced by Invista, an American textile corporation. This polyester fabric consists of fibers that are carefully engineered to wick moisture and allow the passage of heat. COOLMAX fabric has a variety of potential applications, and it...
We choose to examine students’ understanding of matter and energy in concert for a number of reasons. Although energy is not an object or a substance, it must be identified by its association with objects and substances or changes in objects or substances. In much of K-12 chemistry, the ...
The movement of heat across an object that is more conductive than the materials it is surrounded by is referred to as thermal bridging. Heat flows through a path of least resistance created by the conductive material. Thermal bridging can be a significant cause of energy loss in homes and bu...
The core difference between the two technologies is the heat source used to melt the material and form the solid part. LENS uses a laser head, while EBAM uses an electron beam. With DMD the nozzle is not fixed to a specific axis and can move in multiple directions. This means that the...
households use natural gas to heat their homes, and the agency forecasts that those using natural gas will end up experiencing a 28% increase in prices this winter compared to last year. That's not all: Since many U.S. households continue to use electricity that is produced by burning ...