The article presents the results of four series of experimental studies of irradiation efficiency of Moskovskii Parnikovyi leaf lettuce with general and special-purpose LED lamps (phyto-lamps) under various irradiation modes. The studies were conducted with an automated experimental irradiation device. The influence of the spectral compositions of…

A laboratory class was developed and evaluated to illustrate the synthesis of metal nanoclusters (NCs) and to explain their photoluminescence properties for the case of silver. The described experiment employs a synthetic protocol that consists of two sequential phases in a single reaction pot: the reduction of silver ions into plasmonic silver…

Purpose: There is a great interest in developing eco-friendly operations as alternative uses of resources in the university campus, making the employment of technologies more sustainable. Practices such as energy management and efficiency initiatives have been encouraged to meet these sustainability goals. The purpose of this paper is to describe…

A new device for teaching the physics of sound, specifically demonstrating the wavelengths of standing sound waves, is here described. I define a "Lincoln's Tube" as any hollow tube that uses lights (LEDs typically) to demonstrate the presence of sound standing waves. The name is chosen intentionally to recall a Ruben's Tube or a Kundt's…

The lifetime of the excited state of a material is essential for characterizing its photophysical and photochemical processes and substantially affects the quantum efficiencies of its luminescence (fluorescence or phosphorescence) and photo(catalytic) reactions. However, undergraduate students are much more likely to do steady-state, rather than…

Fluorescence microscopy is a useful tool that allows students to learn the principles of fluorescence visually in chemical and biological fields. However, fluorescence equipment has high purchase and maintenance costs and thus may not be available in educational institutions or insufficiently funded laboratories. In this study, a microscope stage…

Studies suggest that the learning environment can act as a third teacher in contributing towards student academic success. A variable within the physical learning environment that has received little attention in the literature is the interior lighting. Because of budget constraints and age, most American public school classrooms have fluorescent…

The aim of this study was to investigate the lighting systems of artificial turf football fields of public and private sectors and to reveal and compare the current situation with the ideal one that it should be. 21 artificial football fields, 6 artificial turf football fields out of 9 from public sector and 15 artificial turf football fields out…

Instructive, inexpensive, and environmentally friendly laboratory syntheses of two highly luminescent copper(I) complexes CuI(PPh[subcript 3])[subscript 2](py[superscript R]) (py[superscript R] = pyridine, 4-cyanopyridine) are described for second-year/upper-division undergraduate inorganic chemistry students. Both complexes exhibit bright…

Electrical engineers often use software to analyze electrical circuits in order to understand circuit behaviors. Such software allows them to modify components and develop and improve their designs. One popular kind of circuit analysis software is based on SPICE (Simulation Program with Integrated Circuit Emphasis). In what follows, I describe how…

The present study examined the level of outcome satisfaction of two main engineering courses taken by students in the Architectural Engineering department (AE) by evaluating the students' satisfaction result (SR), the attained level of the students' opinions (SO), and the instructors' opinions (IO). The AE program in United Arab Emirates…

Every substance is associated to emission of electromagnetic radiation whose peaks are essentially influenced by temperature. Hot bodies (i.e., at T >700 °C) emit electromagnetic radiation in the field of visible light (incandescent light). The radiation emitted by cold bodies (i.e., at normal ambient conditions) in the visible light range is…

Islamic religious school is an institution that integrates Quran "hafazan" (memorization) in the curriculum. Between 2011 to 2017, estimated that 900 new Islamic religious schools were established in Malaysia due to high demands. Designing a classroom layout that receives sufficient daylight is important because it influences the…

In this paper, an educational tool is proposed to show the internal photoelectric effect in a simple and clear way for Undergraduate Physics courses or High Schools. Experimental evidence of the photoelectric effect is particularly important in the didactic experience. This effect is fundamental to introduce students to the world of quantum…

Light pollution is nowadays well known all over the world and may negatively cause disturbance to human and have diverse effects. This study aims to identify the views and opinions of the Islamic University of Gaza students on light pollution and then to create awareness among them about the risky problem facing rapidly our society. The study is…