October 1, 2022 by evantoh Leave a comment Application of refraction, total internal reflection and lens https://www.freethink.com/technology/solar-concentrator?utm_source=facebook&utm_medium=social&utm_campaign=BigThinkdotcom
June 6, 2022 by evantoh Leave a comment Why evaporative cooler does not work well in Singapore? Recall the factors the affect the rate of evaporation Recall: evaporation causes cooling