Category: Physics

What does a gold nugget look like? The average shape of a nugget will resemble a golden piece of chewed up bubble gum. Not all gold is smooth though. Sometimes natural gold will still have very rough and interesting shapes. These would not actually be nuggets, but rather rough gold specimens. How can I test […]

Why don t eclipses occur every single month at the full and new moons? A lunar eclipse occurs when the Moon enters the Earth’s shadow. A solar eclipse occurs when the Moon’s shadow falls on the Earth. They do not happen every month because the Earth’s orbit around the sun is not in the same […]

What are some examples of flashbulb memories? The recollection of geographical location, activities, and feelings during a monumental or emotional life experience all fall under the category of flashbulb memories. Some common examples of such remembrances include the memory of 9/11 attacks, a school shooting, college graduation, or even the birth of one’s child. How […]

What is the difference between Type 1 and Type 2 supernova? Type I supernova: star accumulates matter from a nearby neighbor until a runaway nuclear reaction ignites. Type II supernova: star runs out of nuclear fuel and collapses under its own gravity. What are the 2 types of supernovae? There are two basic types of […]

Who really was the first in flight? Wilbur Wright Is NC really first in flight? Ohio and North Carolina have long been at odds over which state gets to lay claim to being “first in flight.” Ohio, of course, is the birthplace of Wilbur and Orville Wright, and it was here where they created the […]

Is Fe2O3 al exothermic? Igniting a mixture of Fe2O3 and Al with a magnesium ribbon fuse produces molten iron and aluminum oxide in an impressive exothermic reaction. Heat produced raises the products to the melting point of iron (1530oC / 2790oF). What is thermite process where is this process used? The reaction, also called the […]

Do organic foods contain chemicals? Organic produce contains fewer pesticides. Chemicals such as synthetic fungicides, herbicides, and insecticides are widely used in conventional agriculture and residues remain on (and in) the food we eat. Organic food is often fresher because it doesn’t contain preservatives that make it last longer. Does organic mean no artificial ingredients? […]

How much do your arms weigh? On average, an arm weighs about ~5.3% of your total body weight, depending on your gender, among other factors. A leg is about 17.5%. This means for a 150lb average human being, an arm weighs ~8lb and a leg weighs ~26lb. How heavy is a human leg? ~26lb What […]

Can your phone hear your thoughts? Yes! It’s very sneaky. They know you’ll be expecting them to read your thoughts when the phone is held up to your head, so they don’t do that. Instead, they read your thoughts through your fingers. Can people hear your thoughts? No, it’s not possible for people to read […]

Do foreigners learn Hindi? “Language affects how you are included or excluded in a society. Lot of foreigners who come down to India for work or short assignments are keen on learning Hindi to get them through their basic daily interactions with the local population. Why do foreigners learn Hindi? Experts say communicating in a […]