Isn’t it amazing that a group of harmful bacteria called Salmonella, which is responsible for human food poisoning, has been genetically modified by scientists to make a safe anti-cancer treatment?
Can you recall us once mentioning about how a woodpecker drums on tree barks so fast? The qualities in woodpecker heads that allow them to do so has inspired researchers to make extremely safe shock absorbing devices for armed forces, athletes and race car drivers.
Did you know that crying after an emotional disturbance can help reduce tension and stress? When you cry, your body gets rid of certain stress related hormones and other chemicals through tears, making you feel better and calmer.
Our voice we hear naturally, reaches our inner ear in two ways. They are, air conducted sound which reaches it through the external ear and bone conducted sound generated by the vibrations of the vocal chords. Latter mentioned sound is a little deeper since some properties of the bones enhance its lower-frequency vibrations. So, when we hear our own voices naturally, the sound we hear is a combination of two sounds. The voice we hear on a recording is only reached to our ears by air conduction. So it’s just one sound. It’s the sound that’s normally perceived by others as your natural voice. To others, your natural voice and your voice they hear on recordings are the same.
If you have recorded your voice and listened to it later, you might have noticed the voice sounding pretty different from when you hear your natural voice. Can you explain this phenomenon?
Have you ever wondered why all liquids tend to fall in drops? Why wouldn’t you see rain falling in cubes? That’s because liquids are always likely to have the lowest possible surface tension. Spherical shape has the lowest surface tension as it is the shape that has the lowest surface area for a same volume.
Did you know that all animal bodies are naturally radioactive up to a certain low extent? That is because we eat, drink, and breathe radioactive substances naturally present in the environment. The famous age determining method, Carbon Dating, is done by measuring the amount of radioactive carbon present in animal bodies.
You must’ve heard at least once in your lifetime that your appendix is a vestigial (frankly, useless) organ. But, turns out it’s not. Did you know that it actually helps the beneficial bacteria in your gut by acting as an important storehouse for them?
Isn’t it bizarre that Butterflies have taste receptors on their feet? Therefore they taste food by stepping on it.
Did you know that eating bananas can boost your happiness? Bananas contain high levels of an essential amino acid called Tryptophan that helps overcome stress and depression, improving your happy mood.
Like everything else, light takes time to travel from one place to another. When we look at the night sky, the light we see from far away stars and galaxies has taken so long to reach us that we are actually seeing them as they appeared hundreds, thousands or even millions of years ago. So when we look at the night sky, in a way, we look back in time.
Wouldn’t it surprise you to know that a fish, being under water, is able to grasp the vision of almost everything happening outside the water surface? For the fish, this entire field of vision is contained in an angle of about 98°. This effect takes place as a result of the refraction that occurs when light travels from one medium to another, which in this case is from air to water.
Did you know that dark chocolate with a cocoa contain more than 70% has the ability to fight cancer? A class of chemicals in cocoa called Catechins, also found in tea, is discovered to offer protection against cancer, heart disease and stroke.
If you have observed well enough, you might have noticed that some birds (Ex: Pigeons, Chickens, Magpies etc.) bob their heads when walking. They do so as it assists with balance, provides depth perception and sharpens their vision.
Every object has a frequency at which the object resonates at its strongest when it is subjected to an external frequency equal or very close. This frequency is called the natural frequency of the particular object. Have you heard of the collapsing of the famous bridge Tacoma Narrows of the United States in 1940? This happened due to the wind blowing at the natural frequency of the bridge, making the bridge vibrate until it collapsed.
Jupiter is the heaviest planet in the solar system. In fact, it’s as heavy as to outnumber the weight of all the other planets in the solar system combined. Recently it’s been found out Jupiter is responsible for smashing through early solar system, destroying numbers of ancient planets.