384. What is a carat, and how does it relate to a karat ?
A carat is a unit of weight for diamondsand other gemstones. One carat equals 200 milligrams (0.200 grams). There are 453 grams in a pound (1,000 grams to a kilogram).
A karat, when used with gold, is a unit of purity- 24-karat gold is pure gold, but usually you mix gold with a metal like copper or silver to make jewelry (because pure gold is too soft). Each karat indicates 1/24th of the whole. So if a piece of jewelry is made of metal that is 18 parts gold and 6 parts copper, that is 18-karat gold.
A carat is a unit of weight for diamondsand other gemstones. One carat equals 200 milligrams (0.200 grams). There are 453 grams in a pound (1,000 grams to a kilogram).
A karat, when used with gold, is a unit of purity- 24-karat gold is pure gold, but usually you mix gold with a metal like copper or silver to make jewelry (because pure gold is too soft). Each karat indicates 1/24th of the whole. So if a piece of jewelry is made of metal that is 18 parts gold and 6 parts copper, that is 18-karat gold.
385. What is escape Velocity ?
Escape velocity is the speed that an object needs to be traveling to break free of a planet or moon's gravity well and leave it without further propulsion. On the surface of the Earth, the escape velocity is about 11.2 km/s, which is approximately 33 times the speed of sound (Mach 33) and several times the muzzle velocity of a rifle bullet (up to 1.7 km/s).
Escape velocity is the speed that an object needs to be traveling to break free of a planet or moon's gravity well and leave it without further propulsion. On the surface of the Earth, the escape velocity is about 11.2 km/s, which is approximately 33 times the speed of sound (Mach 33) and several times the muzzle velocity of a rifle bullet (up to 1.7 km/s).
388. How does potash alum arrest bleeding?
Bleeding can be stopped by coagulation of the blood (formation of a clot). Potash alum has highly charged Al3+ and (SO4)2- ions which act as neutralizing ions for the protein colloid in blood. This causes aggregation or clotting and this in turn stops the bleeding.
Chemical Formula of Potash Alum :
K2SO4.Al2(SO4)3.24H2O
Bleeding can be stopped by coagulation of the blood (formation of a clot). Potash alum has highly charged Al3+ and (SO4)2- ions which act as neutralizing ions for the protein colloid in blood. This causes aggregation or clotting and this in turn stops the bleeding.
Chemical Formula of Potash Alum :
K2SO4.Al2(SO4)3.24H2O
389. What is photosphere?
Photosphere is the outer shell of star from which light is radiated. It is the innermost layer of the solar atmosphere to which our eyes can penetrate through the superficial transparent layers. Our view is obstructed beyond this layer by the rapidly increasing opacity of the denser layers of the gas as we go inward through it. Temperature of photosphere for Sun is about 5,800 K and values of pressure & density are low.
Photosphere is the outer shell of star from which light is radiated. It is the innermost layer of the solar atmosphere to which our eyes can penetrate through the superficial transparent layers. Our view is obstructed beyond this layer by the rapidly increasing opacity of the denser layers of the gas as we go inward through it. Temperature of photosphere for Sun is about 5,800 K and values of pressure & density are low.
390. What are essential fatty acids?
Human body can synthesize most of the fats it require. However, two essential fatty acids, linoleic and alpha-linolenic, cannot be synthesized in the body and must be obtained from food. These basic fats, found in plant foods, are used to build other specialized fats called omega-3 and omega-6 fatty acids.
Human body can synthesize most of the fats it require. However, two essential fatty acids, linoleic and alpha-linolenic, cannot be synthesized in the body and must be obtained from food. These basic fats, found in plant foods, are used to build other specialized fats called omega-3 and omega-6 fatty acids.
391. What was the first cloned animal ?
Dolly (sheep) Dolly (5 July 1996 – 14 February 2003) was a female domestic sheep, and the first mammal cloned from an adult somatic cell, using the process of nuclear transfer.
Dolly (sheep) Dolly (5 July 1996 – 14 February 2003) was a female domestic sheep, and the first mammal cloned from an adult somatic cell, using the process of nuclear transfer.
393. What is the Ketogenic Diet?
A keto diet is well known for being a low carb diet, where the body produces ketones in the liver to be used as energy. It's referred to as many different names – ketogenic diet, low carb diet, low carb high fat (LCHF), etc. When you eat something high in carbs, your body will produce glucose and insulin.
A keto diet is well known for being a low carb diet, where the body produces ketones in the liver to be used as energy. It's referred to as many different names – ketogenic diet, low carb diet, low carb high fat (LCHF), etc. When you eat something high in carbs, your body will produce glucose and insulin.
395. What is TX- 2 initiative?
Double the number of Tigers by 2022.
Tigers are the largest species of cat and one of the most iconic animals on the planet. One hundred years ago, there were 100,000 wild tigers.
By the year 2010, as few as 3,200 wild tigers remained.
This shocking 97% population decline was driven by rampant poaching and habitat loss. In 2010, governments of the 13 tiger range countries decided innovative conservation efforts were needed. The most ambitious and visionary species conservation goal was set: to double the number of wild tigers by 2022 – the next Chinese year of the tiger.
The goal is called Tx2 running by WWF.
Double the number of Tigers by 2022.
Tigers are the largest species of cat and one of the most iconic animals on the planet. One hundred years ago, there were 100,000 wild tigers.
By the year 2010, as few as 3,200 wild tigers remained.
This shocking 97% population decline was driven by rampant poaching and habitat loss. In 2010, governments of the 13 tiger range countries decided innovative conservation efforts were needed. The most ambitious and visionary species conservation goal was set: to double the number of wild tigers by 2022 – the next Chinese year of the tiger.
The goal is called Tx2 running by WWF.
401. What is an OLED screen?
An organic light-emitting diode (OLED) is a light-emitting diode (LED) in which the emissive electroluminescent layer is a film of organic compound that emits light in response to an electric current. An OLED display can be driven with a passive-matrix (PMOLED) or active-matrix (AMOLED) control scheme.
An organic light-emitting diode (OLED) is a light-emitting diode (LED) in which the emissive electroluminescent layer is a film of organic compound that emits light in response to an electric current. An OLED display can be driven with a passive-matrix (PMOLED) or active-matrix (AMOLED) control scheme.
404. What are magnetars?
A magnetar is a type of neutron star with an extremely powerful magnetic field. The magnetic field decay powers the emission of high-energy electromagnetic radiation, particularly X-rays and gamma rays.
A magnetar is a type of neutron star with an extremely powerful magnetic field. The magnetic field decay powers the emission of high-energy electromagnetic radiation, particularly X-rays and gamma rays.
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405. What is Carbon Sequestration ?
Carbon sequestration describes long-term storage of carbon dioxide or other forms of carbon to either mitigate or defer global warming and avoid dangerous climate change. It has been proposed as a way to slow the atmospheric and marine accumulation of greenhouse gases, which are released by burning fossil fuels.
Carbon sequestration describes long-term storage of carbon dioxide or other forms of carbon to either mitigate or defer global warming and avoid dangerous climate change. It has been proposed as a way to slow the atmospheric and marine accumulation of greenhouse gases, which are released by burning fossil fuels.
406. What is Hypothalamus ?
Hypothalamus: a part of the brain that controls things like thirst, hunger, body temperature, and the release of many hormones.
A chemical message released in the body by cells and glands that affects other cells in an organism.
Hypothalamus: a part of the brain that controls things like thirst, hunger, body temperature, and the release of many hormones.
A chemical message released in the body by cells and glands that affects other cells in an organism.
407. What is Ruby and Sapphire ?
Ruby and Sapphire are oxides of Aluminium. They have the same chemical composition and crystal structure - they are both varieties of the mineral corundum. Rubies: The most desired variety of corundum is the ruby. The red color is produced by trace amounts of chromium in the mineral.
Ruby is the red variety, and Sapphire is the variety that encompasses all other colors, although the most popular and valued color of Sapphire is blue.
Ruby and Sapphire are oxides of Aluminium. They have the same chemical composition and crystal structure - they are both varieties of the mineral corundum. Rubies: The most desired variety of corundum is the ruby. The red color is produced by trace amounts of chromium in the mineral.
Ruby is the red variety, and Sapphire is the variety that encompasses all other colors, although the most popular and valued color of Sapphire is blue.
408. What is the relationship between color and energy in stars?
Most stars that we see in the night sky appear silver or whitish to our eyes. In reality, the colours of the stars differ from one another, ranging from blue, yellow, orange and red. Different colored stars send out different kinds of energy. The blue stars send their energy through ultra-violet rays, while blue-white, white, yellow-white, yellow, orange and red stars send out their energy in heat waves.
Most stars that we see in the night sky appear silver or whitish to our eyes. In reality, the colours of the stars differ from one another, ranging from blue, yellow, orange and red. Different colored stars send out different kinds of energy. The blue stars send their energy through ultra-violet rays, while blue-white, white, yellow-white, yellow, orange and red stars send out their energy in heat waves.
410. What is Kohinoor Diamond ?
The Koh-i-Noor is a large, colourless diamond that was found near Guntur.
Queen Elizabeth II in right of the Crown. The Koh-i-Noor (Persian for Mountain of Light; also spelled Kohinoor and Koh-i-nur) is a large, colourless diamond that was found near Guntur in Andhra Pradesh, India, possibly in the 13th century.
Mine of origin: Kollur Mine, Guntur District, Andhra Pradesh, India.
Original owner: Kakatiya dynasty
Owner: Queen Elizabeth II in right of the Crown.
Weight: 105.602 carats (21.1204 g)
The Koh-i-Noor is a large, colourless diamond that was found near Guntur.
Queen Elizabeth II in right of the Crown. The Koh-i-Noor (Persian for Mountain of Light; also spelled Kohinoor and Koh-i-nur) is a large, colourless diamond that was found near Guntur in Andhra Pradesh, India, possibly in the 13th century.
Mine of origin: Kollur Mine, Guntur District, Andhra Pradesh, India.
Original owner: Kakatiya dynasty
Owner: Queen Elizabeth II in right of the Crown.
Weight: 105.602 carats (21.1204 g)
411. Why third molars are called wisdom teeth ?
The eruption of our third molars marks a transitional period in our lives between adolescence and adulthood. It is thought that with age, we become wiser and more mature. Thus, these late arrivers were nicknamed "wisdom teeth." Wisdom teeth may come in straight, not causing any problems with the other teeth.
The molars or molar teeth are large, flat teeth at the back of the mouth. They are more developed in mammals.
The eruption of our third molars marks a transitional period in our lives between adolescence and adulthood. It is thought that with age, we become wiser and more mature. Thus, these late arrivers were nicknamed "wisdom teeth." Wisdom teeth may come in straight, not causing any problems with the other teeth.
The molars or molar teeth are large, flat teeth at the back of the mouth. They are more developed in mammals.
412. What is Noble Prize ?
The Nobel Prize is the legacy of Sweden's Alfred Nobel (1833–1896). Prizes are awarded to ‘those who, during the preceding year, shall have conferred the greatest benefit on mankind.’ When he signed his last will in 1895, Nobel declared that the bulk of his estate should be converted into a fund and invested in safe securities. The four institutions in Sweden and Norway (the two countries were united between 1814 and 1905) conferring the prizes were to be the Swedish Academy of Sciences, Karolinska Institutet in Stockholm, the Academy in Stockholm and a committee of five people to be elected by the Norwegian parliament (Stortinget).
The Nobel Prize is the legacy of Sweden's Alfred Nobel (1833–1896). Prizes are awarded to ‘those who, during the preceding year, shall have conferred the greatest benefit on mankind.’ When he signed his last will in 1895, Nobel declared that the bulk of his estate should be converted into a fund and invested in safe securities. The four institutions in Sweden and Norway (the two countries were united between 1814 and 1905) conferring the prizes were to be the Swedish Academy of Sciences, Karolinska Institutet in Stockholm, the Academy in Stockholm and a committee of five people to be elected by the Norwegian parliament (Stortinget).
413. Why are peppers hot?
An odorless, flavorless substance in peppers makes them hot. The culprit of the burning feeling you get from jalapeno-loaded Mexican food: chemical compounds called capsaicinoids. The odorless, flavorless substances are hidden in the white flesh inside of peppers.
An odorless, flavorless substance in peppers makes them hot. The culprit of the burning feeling you get from jalapeno-loaded Mexican food: chemical compounds called capsaicinoids. The odorless, flavorless substances are hidden in the white flesh inside of peppers.
415. Who was the first non human to win the Oscars?
It was mickey mouse which was an animation character created by the owner of Disney Walt Disney in 1928.
It was mickey mouse which was an animation character created by the owner of Disney Walt Disney in 1928.