Unlike metal, things that are made of glass usually can’t stand heat without getting cracked. Explain why.
If you press two ice cubes on each other for a little time, you can see them conjoin. This phenomena occurs, as the melting point of ice decreases when compressed. This makes the ice cubes to melt at the place they’re being pushed against each other. When the pressure is removed, the melting point goes back to normal, re-freezing the melted ice.
If you’re a person who sweats badly, this news could be exciting to you. A group of scientists from Ireland has created a perfume that smells more pleasantly as you sweat, by including chemicals that release more fragrance upon contact with dampness.
Bulls are colorblind. Yet, in bullfighting, a man moves a red cloth at a bull to rage it. The bull charges at the cloth not because of its color, but its movement. Bulls can be raged by waving a cloth of not only red, but of any color.
When pasteurizing, milk is heated up to a certain temperature for a certain time period and cooled instantly. In that process, bacteria and other microorganisms are destroyed but heat resistant microorganism spores are not. Therefore, if pasteurized milk is not stored in a refrigerator, a bacteria friendly environment might begin to form facilitating the spores to regenerate. When sterilizing, milk is heated up to 120° degrees (°C), destroying both microorganisms and their spores. Therefore, sterilized milk can be stored at the room temperature for a few months until they’re opened.
Pasteurized milk should be kept inside of a refrigerator at all times while sterilized milk cans can be stored at the room temperature till they’re opened. What is the reason for this?
Did you know that there’s a type of rats called Naked Mole rats that are immune to all kinds of cancer? This has become a reason for them to become a new fascination for researchers, despite their gruesome looks.
Did you know that eggs are one of nature’s superfoods? Egg protein has the exact mixture of Amino Acids needed by humans to build tissues. Its protein combination is second only to mother’s milk.
Have you noticed how smoothly a mosquito bites that sometimes you don’t even feel the bite until it starts itching afterwards? This mechanism has inspired researchers to create injection needles that are literally painless.
Spicy foods mainly contain chemicals such as Capsaicin and Allyl isothiocyanate. These chemicals irritate the nasal mucous membranes and tear glands, causing your nose to run and eyes to water.
You must have all experienced the awful aftermath effects of eating spicy foods, like runny noses and teary eyes. Explain this occurrence.
There is neither air nor wind on the moon. So if you’ll be lucky enough to step foot on the moon one day, your footprints are likely to remain there forever. Just like Neil Armstrong’s footsteps that are still seen on the moon today.
Did you know that in the field of forensic, forensic scientists are able to determine a person’s time of death by studying the insects that colonize a corpse? They also claim that presence of a given insect species can link a body to a certain location or show if it’s been moved from one place to another.
Have you thought for one moment, that emotions you feel are actions of chemical messengers, mainly neurotransmitters? Happiness, jealousy, affection and every single feeling you get is technically a chemical reaction happening inside your body.
When a cold container is taken out of a fridge and kept outside, the temperature of the layers of air around the container decreases. That makes the small space around the container become saturated with water vapor and condense the excessive vapor. The condensation thereafter visibly remains on the outer surface of the container as liquid droplets.
When you take out a cold beverage from a fridge and keep it outside, you can notice small liquid droplets deposit on the outer surface of the container. Why does this happen?
Humans are natural born long distance runners. In fact, our bodies are very well adapted to the mechanics of running that some scientists claim that we are on top of the list of long distance running animals. In the ancient times, humans have hunted animals by running after them until the animals die of exhaustion.
Have you seen cats and dogs swallowing grass? They do so to make themselves vomit and relieve from stomach aches. This is a form of self-medication, which is commonly seen among many other animals like chimpanzees, elephants etc. Chimps are observed swallowing rough plant leaves, which are thought to act as sandpaper to remove parasites in their digestive system.
You must’ve often heard stories about people with rare blood types who are waiting to find matching donor blood. These kind of stories are about to fade with time, as scientists have created an enzyme that is able to convert any blood type into the universal blood type, O.