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Paper – III (Technology, Economic Development, Bio-diversity, Environment, Security and Disaster Management) In present global situation, numerous powerful technologies have been developed to assist people
Paper – III (Technology, Economic Development, Bio-diversity, Environment, Security and Disaster Management) Science and Technology have been a vital exploration in Indian culture since ancient
1. Some of the first examples of technology were Stone Age tools Technology is the use of knowledge to invent new devices or tools. This
Nanotechnology deals with extremely small particles. Nanotechnology is the branch of technology dealing with particles of less than 100 nanometers, particularly management of discrete
Through a microscope, we can see the smallest parts of our world. We can see the cells that make up each living thing. We can see the salt molecules on
Bluetooth is a wireless communication technology. Created in 1994, it has changed the way we use many devices since then. Bluetooth connects gadgets so they can be used together. Today,
Technology has forever changed the world we live in. We’re online, in one way or another, all day long. Our phones and computers have become
Why does space travel take so long? There are many reasons. First, objects in space are very far away from each other. Our closest neighbor—the
The list of Alexa commands is expansive and grows with every new service or device it supports. Alexa isn’t perfect, but it’s pretty great at
What are animatronics? Put simply, they’re puppets that can move thanks to technology. They’re run by people using remotes or other devices to tell them how
What do aerospace engineers do? They may work on any number of tasks related to flying vehicles. Many are experts in physics and aerodynamics who help design aircraft. Some focus on
Metal detectors can find hidden metal objects. The ultimate score would be a large metal chest filled with long-lost treasure. More likely, though, they’ll find coins dropped by
Today, calculators are everywhere. Many kids probably take them for granted. After all, any smartphone will have a calculator application right there on the home screen. You can also
Cloning. The word itself probably conjures images from a science fiction movie, in which an evil genius creates clones of himself. With an army of
Are you wondering whether night vision goggles really work? Yes, they do! In fact, they work very well. On a cloudy, moonless night, the best
If you’re the guilty one, you have two options. You can tell the truth and face the consequences. Or you can try to tell a convincing
Since electricity is a natural force that exists in our world, it didn’t have to be invented. It did, however, have to be discovered and understood. Most people give
Satellites are any objects that revolve around (orbit) another object in space. Some satellites are natural, while others are artificial (man-made). The moon is an example of a natural satellite that orbits the Earth.
A popular legend has it that karaoke got its start over two decades ago in Kobe, Japan. No one knows its origins for certain, but
People bleach their clothes. People with dark hair who want lighter hair may bleach their hair. Some people even bleach their teeth to give themselves a sparkling white smile.
Take a close look at your palms and the tips of your fingers. Do you see the tiny ridges and lines? If you pressed a
If your wish included a television or anything that involves video, like a video game console or a Blu-ray Disc player, you’ll soon be learning
Touch screens are electronic visual displays that allow a user to interact directly with what is displayed on the screen, rather than using a pointing device, such as a mouse. Touch screens
Have you ever seen a picture of a baby inside his or her mother’s body? If so, you may have wondered how doctors get their
Bodies of water have always presented challenges to engineers. In the early days, rivers were powerful avenues of commerce. Sooner or later, though, people just wanted
Basically, anything with a smooth surface that reflects almost all of the light that hits it — with only very little light absorbed or scattered
♦️ Altimeter:- Measures altitudes. ♦️ Ammeter:- Measures electric current. ♦️ Anemometer:- Measures force and velocity of wind and directions. ♦️ Audiometer:- Measures intensity of sound.
3D stands for three-dimensional. “Regular” movies are 2D, or two-dimensional. What are dimensions, and what’s the difference? Dimensions are properties of space. They refer to extension in a particular
Cyanoacrylate is an acrylic resin that forms its strongest bond almost instantly. The only thing it requires to set is water. Since almost every object
Scientists say the chances of two snowflakes being exactly alike are about 1 in 1 million trillion. That’s a one followed by 18 zeros, so
In 1895, German physicist Wilhelm Roentgen was experimenting with electricity in a special tube. He wanted to find out how electricity would act in a vacuum. For that
The word anesthesia comes from the Greek words for “without” and “sensation.” If a potentially painful procedure is in your future, then you may certainly prefer to experience it with anesthesia and,
If you’ve ever bought a brand-new DVD, video game, or computer software package, you know you have to tear the plastic packaging to open it. Often,
It is a space telescope being jointly developed by NASA, the European Space Agency (ESA), and the Canadian Space Agency (CSA). It has taken 30
GMO stands for “genetically modified organism.” These are plants, animals, or other living things whose genetic material (DNA) has been altered by humans using a
️ इलेक्ट्रोलिसिस एक रासायनिक प्रतिक्रिया प्राप्त करने के लिए इलेक्ट्रोड के माध्यम से एक प्रत्यक्ष प्रवाह पारित करने की एक प्रक्रिया है। जब चुना हुआ
Inkjet printers work by applying tiny droplets of ink to paper. This is usually done using one of two technologies. Thermal inkjet printers use heat to create
They look a little bit like small telescopes you can hold in your hands. One end has a hole you can look into. The other
A camera basically consists of a lightproof box that lets in a bit of light at just the right moment. Once the light enters the camera, it
A 3D printer isn’t anything like a regular printer, however. Instead of printing a simple text document on a single piece of paper, 3D printers can “print” a real three-dimensional
The sound of your normal voice is determined by a number of factors. In addition to the air you breathe, the shape of your mouth, throat, nasal passages, tongue, and lips
Take a close look at your palms and the tips of your fingers. Do you see the tiny ridges and lines? If you pressed a
BrahMos missile derives its name from the combination of the names of Brahmaputra and Moskva Rivers. They are designed, developed, and produced by BrahMos Aerospace, a
Hundreds of years ago, your communication options were quite limited. If you had a message for a friend, you could tell them in person or
3D stands for three-dimensional. “Regular” movies are 2D, or two-dimensional. What are dimensions, and what’s the difference? Dimensions are properties of space. They refer to extension in a particular
Dynamite was invented in 1867 by Alfred Nobel. If you’re wondering, yes, it’s the same Alfred Nobel who started and funded the Nobel Prizes for
Xenotransplantation, or transplanting organs across different species, was first tried in humans in the 1980s. The experiment was abandoned after the famous case of the
5G or fifth generation is the latest upgrade in the long-term evolution (LTE) mobile broadband networks. It’s a unified platform that is much more capable
Thomas Edison invented the light bulb in 1879. Since then, people have made many improvements to lighting. Look around you. How many types of lights
Speaking of bubbling, what exactly are those bubbles you see in a pot of boiling water? Some people believe it’s air, since many bubbles you may be familiar with,
