Category: Physics

Is there a machine that turns carbon dioxide into oxygen? Now, researchers at Caltech claim to have created a reactor that can turn carbon dioxide into molecular oxygen, which could help us fight climate change here on Earth or generate oxygen for life in space. Oxygen is one of the biggest hurdles to human space […]

Why do masses attract each other? Any object having some mass will attract another object having mass. this is because of gravity. When two objects ahving some mass are separated by some distance then force of gravity acts between them and tends to keep them close that means it is always attractive in nature. How […]

What is knowledge and its sources? Hence Knowledge is considered as the food of mind. Knowledge can be defined as a familiarity awareness or understanding of someone or something such as facts, information, descriptions or skills, which is acquired through experiences or education by perceiving, discovering or learning. What is knowledge and its type? Meaning […]

Which Lens has more focal length thick or thin? Thick lens will have shorter and consequently thin lens will have greater focal length. Because, For a thick lens, the optical path length of the light is more, than for a thin lens, thus, the bending of light will be more in case of a thicker […]

Where are biomaterials used? Doctors, researchers, and bioengineers use biomaterials for the following broad range of applications: Medical implants, including heart valves, stents, and grafts; artificial joints, ligaments, and tendons; hearing loss implants; dental implants; and devices that stimulate nerves. What do u mean by biomaterials? A biomaterial is a substance that has been engineered […]

What is the main source of energy for the water cycle? The sun is what makes the water cycle work. The sun provides what almost everything on Earth needs to go—energy, or heat. How do you write a water cycle? Write a note on water cycle Answer: The water cycle, or hydrological cycle, is the […]

Are Step-up transformers safe? Step-up/down transformers have been used for many, many years; there is nothing mysterious about them. In general they are as safe as other parts of the electrical systems . If you are worried, then I suggest you buy one from a reputable/estalished company, and make sure that it is certified (e.g., […]

How did the force get out of balance? The idea of balance of the Force, a central tenet of the Jedi Order, refers to the ideal state in which the Force exists in nature, i.e. as the light side. The presence of the dark side corrupts and destroys this natural balance, and the Jedi viewed […]

Does dissolved oxygen increase with temperature? First, the solubility of oxygen decreases as temperature increases ¹. This means that warmer surface water requires less dissolved oxygen to reach 100% air saturation than does deeper, cooler water. Third, dissolved oxygen will increase as pressure increases ¹. What are the important effects of temperature on aquatic organisms? […]

Why is cavitation bad for pumps? Cavitation causes pump performance deterioration, mechanical damage, noise and vibration which can ultimately lead to pump failure. Vibration is a common symptom of cavitation, and many times the first sign of an issue. Vibration causes problems for many pump components, including the shaft, bearings and seals. What is cavitation […]