Category: Physics

How do you stop static electricity in blankets? Run a dryer sheet or a wire hanger over the blankets before you get into bed. The dryer sheet reduces static cling and electricity, while the wire hanger discharges built up static before you get into bed. You can also wring out a wet washcloth and run […]

Why secondary maxima are less intense than the central maximum? Why does the intensity of the secondary maximum become less as compared to the central maximum? Answer: The intensity of light of a secondary maximum goes on decreasing with the order of the maximum. Hence, the intensity of secondary maxima becomes less as compared to […]

What gives your skin color? Your skin gets its color from a pigment called melanin. Special cells in the skin make melanin. When these cells become damaged or unhealthy, it affects melanin production. How can I increase melanin in my hair? Can certain foods boost melanin growth in hair? Foods rich in antioxidants. Many foods […]

How do plant cells work together to maintain homeostasis? Homeostasis literally means same state, the desired state for a healthy plant. Plant cells have rigid walls that contain organs that regulate plant health and growth. Among the plant cell organs are the vacuoles, the largest and main mechanisms for maintaining homeostasis, and chloroplasts, which produce […]

What is the density of a substance of mass? The formula for density is d = M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of grams per cubic centimetre. For example, the density of water is 1 gram per cubic centimetre, and Earth’s density is […]

How 2020 is a unique leap year? 2020 is a unique Leap Year. It has 29 days in February, 300 days in March and 5 years in April. May may never never end end. Why is February called February? February is named after an ancient Roman festival of purification called Februa. The Roman calendar originally […]

Is rural living safe? Compared to cities and suburban areas, rural locations are the most dangerous places to live. A study found that “your risk of death is actually about 22 percent higher in the most rural counties in America than in the most urban ones.” Death rates in the exurbs are higher for a […]

Why are the mirror fitted on the outside of cars convex? Convex mirrors have the ability to cover wider field of view by forming diminished and virtual image of the objects. Thus, the mirrors fitted on the outside of cars are convex so that larger view of the road can be observed by the driver […]

What does a deep S wave indicate? T HE presence of a deep S wave in leads. V1 or V2 is often interpreted as evidence. suggesting left ventricular hypertrophy. What does a small S wave indicate? You will also have seen a small negative wave following the large R wave. This is known as an […]

How many whooping cranes are left today? We appreciate your contribution to the recovery of the Whooping Crane Eastern Migratory Population. This report is produced by the International Crane Foundation. The current estimated population size is 80 (39 F, 38 M, 3 U). Seventeen of these 80 individuals are wild-hatched and the rest are captive-reared. […]