Hello Guys, I am Rex. Welcome to my blog page [ Science Time with Albert Rex ], where science meets wonder and curiosity. This blog page helps the Common people to understand the simple concepts of science. At my blog [Science Time with Albert Rex], I believe that “science is not just a subject — it's a way of thinking”. Join us on an exhilarating journey through the realms of scientific exploration and discoveries. Unleash your inner scientist and embark on a curious voyage with my blog page.
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Tuesday, June 25, 2024
How are Tides Formed?
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Saturday, June 22, 2024
The Toughest Predators Ever: Tyrannosaurus Rex.
Tyrannosaurus Rex was one of the most ferocious creature to ever roam the Earth. With a gigantic body, keen teeth, and jaws powerful enough to smash a vehicle, this renowned carnivore controlled the forested river valleys of western North America during the late Cretaceous period, 68 million years ago.
T. Rex is a well-known Tyrannosaur, yet our understanding of him is continually changing. Improved technologies, including as biomechanical modelling and x-ray imaging, have helped scientists obtain a better understand of how this apex predator lived.
Tyrannosaurus rex, which means "King of the Tyrant Lizards," was designed to take control. This dinosaur's massive body covered up to 40 feet—roughly the length of a school bus—from its nose to the tip of its powerful tail. T. rex, weighing up to eight tonnes, raised headfirst across its territory with two powerful legs. These dinosaurs most likely hunted living animals and collected cadavers, and they occasionally ate one another.
Tyrannosaurus rex had a good sense of smell, which helped it find its prey. While scientists have long known that this dinosaur's brain was dedicated to scent processing, current research has revealed that T. rex has nearly as many genes encoding its olfactory receptors as a house cat does today. This strong nostrils most likely helped T. rex find mates and identify other predators.
The head of a Tyrannosaurus dinosaur was very terrifying. This ruthless carnivore was designed to crush through its prey, with a hard cranium that allowed it to concentrate all of its muscle power into a single bite, making a up to six tonnes of pressure. This dinosaur utilised its 60 hooked teeth, each about eight inches long, to puncture and hold flesh before throwing it into the air and eating it whole. To protect from overheating while crushing prey with its powerful jaws, the gigantic animal developed openings in its head to keep its brain cool, similar to those found in alligators.
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Tyrannosaurus Rex. |
Tyrannosaurus rex, a ferocious dinosaur, had tiny arms that biologists debated. Some believe they were evolutionary leftovers or served non-predatory purposes, while others argue they were evolved for "cruel cutting" in close quarters. Considering their powerful thighs, these dinosaurs could only walk at 12 miles per hour, which scientists believe would have fractured their feet if they travelled faster.
Tyrannosaurus rex, a dangerous predator with a life expectancy of 28 years, suffered a growth rise during its adolescent years. A 2020 analysis of Nano Tyrannus fossils found that the bones belonged to a young T. rex rather than another species. This shows that Tyrannosaurus rex's growth rate varied as it aged, and that it could slow down when food was limited. Despite its advantages, T. rex was unable to equal the 66 million-year-old catastrophe that killed three-quarters of all species on Earth. This catastrophe occurred when an asteroid or comet collided with Earth, destroying Tyrannosaurus rex and other non-avian dinosaurs and marking the end of the Cretaceous epoch.
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Thursday, December 21, 2023
Particle Nature of light: Einstein's Explanation.
Particle Nature of light: Einstein's Explanation.
Einstein extended Planck's quantum concept to explain the photoelectric effect in 1905. According to Einstein, the energy in light is not spread out over wavefronts but is concentrated in small packets or energy quanta. Therefore, light (or any other electromagnetic waves) of frequency v from any source can be considered as a stream of quanta and the energy of each light quantum is given by E=hv.
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He also proposed that a quantum of light has linear momentum and the magnitude of that linear momentum is p=h/c. The individual light quantum of definite energy and momentum can be associated with a particle. can behave as a particle and this is called photon. Therefore, photon is nothing but particle manifestation of light.
Light is made up of particles called Photons.
Characteristics of photons:
According to particle nature of light, photons are the basic constituents of any radiation and possess the following characteristic properties:
i) The photons of light of frequency v and wavelength & will have energy, given by E=hv= hc/λ
ii) The energy of a photon is determined by the frequency of the radiation and not by its intensity and the intensity has no relation with the energy of the individual photons in the beam.
iii) The photons travel with the speed of light and its momentum is given by hhv P=h/λ =hv/c
iv) Since photons are electrically neutral, they are unaffected by electric and magnetic fields.
v) When a photon interacts with matter (photon-electron collision), the total energy, total linear momentum and angular momentum are conserved. Since photon may be absorbed or a new photon may be produced in such interactions, the number of photons may not be conserved....
“Matter is Energy… Energy is Light…We are all Light Beings” —Albert Einstein.
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Monday, November 13, 2023
History of Cinema: Beyond Screens.
Cinema is the most widely acclaimed means of entertainment in the world today. It is a combination of various equipments, techniques and art which constitutes cinema. But the most important things needed to experience cinema are camera, film reel and a projector. "Wheel of life' or 'zoopraxiscope' was the first machine to show animated pictures. It was patented in 1867 by William Lincoln. In a zoopraxiscope, moving photographs were watched through a slit.
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Zoopraxiscope |
"The cinema is an invention without a future." - Louis Lumière. The Lumiere brothers-Auguste and Louise - are credited for inventing the first motion picture camera in the year, 1895. But even prior to Lumiere brothers, many others had made similar inventions. Lumiere brothers invented a portable motion-picture camera, film processing unit and a projector called the Cinematographe. Here, three functions were covered in one invention.
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Lumiere Brothers |
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Cinematographe |
Cinematographe or Cinematography brought a revolutionary change in the world of cinema and made motion pictures popular. Though, prior in 1891, the Edison Company came up with a kinetoscope which allowed to watch cinema one person at a time, Edison's vitascope (1896) was the first commercially successful projector in USA.
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Kinetoscope |
A camera shoots an activity on a film roll, also known as a film negative. This film negative is then edited. An editor removes away unnecessary scenes by cutting away that portion of the film role. Then the edited film roll is processed in a lab with required effects. The final film footage is then mounted on a projector. A projector is a device which projects the film running on the film roll on a blank white screen with the help of light. There are two pulleys on a projector. The film reel is mounted on the first projector and is run through the first to the second projector with the help of a motor.
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Advertising of Edson's Vitascope |
The film reel passes between a magnifying lens and a light bulb. The lens increases the size of the image on the blank white screen.
Cinematography is an art form unique to motion pictures. Although the exposing of images on light-sensitive elements dates back to the early 19th century, motion pictures demanded a new form of photography and new aesthetic techniques. In the infancy of motion pictures, the cinematographer was usually also the director and the person physically handling the camera. As the art form and technology evolved, a separation between the director and the camera operator emerged. With the advent of artificial lighting and faster (more light sensitive) film stocks, in addition to technological advancements in optics and new techniques such as colour film and widescreen, the technical aspects of cinematography necessitated a specialist in that area.
"IF A MILLION PEOPLE SEE MY MOVIE, I HOPE THEY SEE A MILLION DIFFERENT MOVIES." ---QUENTIN TARANTINO---
QUENTIN TARANTINO.
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Why Light Bends by Gravity?
Introduction to General Relativity: The Equivalence Principle Einstein's theory of General Relativity builds on the Equivalence Principl...
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Story of X-Rays. X-rays, like the light are electromagnetic radiations and are not visible to the eye. Their wavelengths are smaller than ...
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💣 Scientist of the Manhattan Project complete the Atomic Bomb destined to end World War - II : In the Movie Oppenheimer shows the ...
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Radiation from black holes was the first example of a prediction that depended on both of the great theories of this century, general relati...
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Thomas Alva Edison is known as the inventor of the electric bulb. But prior to him, many other scientists had been working on manufacturing ...
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“ If we pick up a stone and then let it go, why does it fall to the ground? ” The usual answer to the question is: “ Because it is attract...