Category: Useful tips

What is the difference between NDA and NA exam? There’s no major difference, but just a term or title given to NDA & NA. It’s that the exam is named like that. However, both have different full forms, while the exam is only one which is conducted by UPSC only. NDA & NA is termed…

Why is my ice cube not clear? Ice cubes may come out of the freezer with an opaque appearance for many reasons. One of the most common reasons is that a home’s water has not been properly filtered and purified. This forces air bubbles, and potentially impurities, toward the middle of the ice cube to…

Can melatonin put you into a coma? There is no known lethal dose of melatonin and no reports of death from taking too much melatonin, Dimitriu says, but taking too much can disrupt your natural circadian rhythm and internal body clock, causing you to actually have more trouble falling asleep. Which is better for sleep…

What is flow throttling? [′thräd·əld ′flō] (fluid mechanics) Flow which is forced to pass through a restricted area, where the velocity must increase. How cavitation occurs in centrifugal pump? Cavitation occurs when the liquid in a pump turns to a vapor at low pressure. It occurs because there is not enough pressure at the suction…

Should I remove gemstone ring while bathing? You create a relationship with your gemstone – over the time you wear it. You can simply soak the gemstone in salt water and put it back on. If you are one of those individuals who are energetically sensitive and prefer taking off gemstones while sleeping, you must…

Why is green light not absorbed in photosynthesis? The main reason why green light is purportedly not useful to plants is because it is poorly absorbed by chlorophyll. However, absorption of chlorophyll is usually measured using extracted and purified chlorophyll, in a test tube (in vitro), and not using an intact leaf (in vivo). Why…

What is the purpose of deep Ploughing? For that purpose, deep plowing is used to break the plow pan and to increase leaching and soil water storage in the deep rooting zone (Rhoades et al., 1992). How does tillage help control weeds? Secondary tillage will control small seedlings and germinating annual weeds by desiccation; therefore,…

Is miswak better than a toothbrush? In a previous study found that the periodontal health of miswak users was better than the periodontal health of manual toothbrush users, also it was concluded that miswak is more effective than tooth brushing for reducing plaque and gingivitis when preceded by professional instruction regarding its correct application. What…

Can Facebook track you on Tor? Using Tor doesn’t make you anonymous on Facebook because it can still track your activities on the platform when you’re logged in. Does Tor Browser hide your location? Tor is a free software program that you load onto your computer (like a browser) that hides your IP address every…

How does modulo operator work for negative numbers? The modulus of a negative number is found by ignoring the minus sign. The modulus of a number is denoted by writing vertical lines around the number. Note also that the modulus of a negative number can be found by multiplying it by −1 since, for example,…