Light is a electromagnetic wave. Sometimes it behave as particle and sometimes as wave 

Light travels at fastest speed and it is radiation which is visible to our naked eyes

The modern Olympic Games or Olympics are leading international sporting events featuring summer and winter sports competitions in which thousands of athletes from around the world participate in a variety of competitions. The Olympic Games are considered the world’s foremost sports competition with more than 200 nations participating.The Olympic Games are normally held every four years, alternating between the Summer and Winter Olympics every two years in the four-year period.

Baron Pierre de Coubertin founded the International Olympic Committee (IOC) in 1894, leading to the first modern Games in Athens in 1896. The IOC is the governing body of the Olympic Movement with the Olympic Charter defining its structure and authority.

The evolution of the Olympic Movement during the 20th and 21st centuries has resulted in several changes to the Olympic Games. Some of these adjustments include the creation of the Winter Olympic Games for snow and ice sports, the Paralympic Games for athletes with disabilities, the Youth Olympic Games for athletes aged 14 to 18, the five Continental games (Pan American, African, Asian, European, and Pacific), and the World Games for sports that are not contested in the Olympic Games. The IOC also endorses the Deaflympics and the Special Olympics. The IOC has needed to adapt to a variety of economic, political, and technological advancements.

The Olympic Movement consists of international sports federations (IFs), National Olympic Committees (NOCs), and organising committees for each specific Olympic Games. As the decision-making body, the IOC is responsible for choosing the host city for each Games, and organises and funds the Games according to the Olympic Charter. The IOC also determines the Olympic programme, consisting of the sports to be contested at the Games. There are several Olympic rituals and symbols, such as the Olympic flag and torch, as well as the opening and closing ceremonies. Over 14,000 athletes competed at the 2016 Summer Olympics and 2018 Winter Olympics combined, in 35 different sports and over 400 events.The first, second, and third-place finishers in each event receive Olympic medals: gold, silver, and bronze, respectively.

The Games have grown so much that nearly every nation is now represented. This growth has created numerous challenges and controversies, including boycotts, doping, bribery, and a terrorist attack in 1972. Every two years the Olympics and its media exposure provide athletes with the chance to attain national and sometimes international fame. The Games also provide an opportunity for the host city and country to showcase themselves to the world.

The Olympic Games programme consists of 35 sports, 30 disciplines and 408 events. For example, wrestling is a Summer Olympic sport, comprising two disciplines: Greco-Roman and Freestyle. It is further broken down into fourteen events for men and four events for women, each representing a different weight class. The Summer Olympics programme includes 26 sports, while the Winter Olympics programme features 15 sports. Athletics, swimming, fencing, and artistic gymnastics are the only summer sports that have never been absent from the Olympic programme. Cross-country skiing, figure skating, ice hockey, Nordic combined, ski jumping, and speed skating have been featured at every Winter Olympics programme since its inception in 1924. Current Olympic sports, like badminton, basketball, and volleyball, first appeared on the programme as demonstration sports, and were later promoted to full Olympic sports. Some sports that were featured in earlier Games were later dropped from the programme.

Olympic sports are governed by international sports federations (IFs) recognised by the IOC as the global supervisors of those sports. There are 35 federations represented at the IOC.There are sports recognised by the IOC that are not included in the Olympic programme. These sports are not considered Olympic sports, but they can be promoted to this status during a programme revision that occurs in the first IOC session following a celebration of the Olympic Games.

Signs of true friendship are proverbial when two long-time friends meet for the first time in a long time, resume from where they left off, and easily reconnect with meaningful relationships.
Randy Newman’s eternal “You`ve Got Friend Rice” echoes in the opening credits, despite some indifference that he felt when another piece of the “Toy Story” franchise was released. Cross. Some Aspects of “Toy Story” Eduun Intimate people will soon feel at home.
“Toy Story 4” begins in heavy rain, turning time somewhere between the adventures of the second and third movies. Separated, but sets the tone of the intensity movie.
Back to the present, we show Woody and the gangsters playing the role of children’s toys just beginning the first day of kindergarten in a new environment. Seeing her struggling to adjust to the surroundings, and while battling his own self-doubts, Woody provides the material for creating a story known as Bonnie and her own friend, Pokey. Of course, not everything goes as planned. Pocky faces an existential crisis and believes himself to be trash, despite the dark humor and, in some cases, lobbying for the trash. When the moment comes when Fore Key needs ups and downs, of course Woody comes up and makes Bonnie happy and is determined to keep his group intact.
The engaging set pieces here are memorable new characters, fresh and fun added to the story with some hysterical moments, and most importantly, the uncertainty of whether or not it might feel worth it. originally needed. Anyone who hates
creepy dolls will have to apply the same resistance to not only go to the cinema to escape the recent “children’s game” movie, but also watch this particular movie given the presence of perhaps four significant threatening ventriloquist dolls. Under Gyabi Gyabi’s care, they are disobedient dolls that do what she can to win the love and attention of the children who give birth to her. Although not as emotionally appealing as seeing
‘s beloved character treat his death at the end of the final movie, Toy Story 4 has come to a satisfying conclusion. It was actually revealed this time. If “Toy Story” comes back from the other side for 5 episodes, it’s probably because there’s a story to tell. And we now trust the filmmakers to pass it on. They haven’t disappointed us until now.

Think of your favorite Quentin Tarantino movie and focus on one moment in it. Can you imagine “Pulp Fiction” and Samuel L. Jackson’s evocative speech “Ezekiel 25:17”? Or maybe you are in love with Colonel Hans Landa, played by Christoph Waltz in “Inglourious Basterds,” and bring bad luck with a glass of fresh milk.
No matter which moment you choose, it can be a scene of intense, vivid, and often unprovoked violence before or after it. Tarantino has always been controversial. His films are respected and insulted. They present ruthless chaos and humorous scenes on our screens. At the very least, these scenes are already in our memory. They left a footprint.
If this is Tarantino what you are looking for, then it is best to browse through his catalog of eight films, because “in the past … in Hollywood” was a completely different creation.
With the vibrant and immersive California of 1969 as a backdrop, Hollywood’s so-called golden age is coming to an end and the adoration of Charles Manson is imminent. Tarantino abandoned the main point of the plot and went back to exploring and felt almost overwhelmed. the day job of actor Rick Dalton (Leonardo DiCaprio) and his great, effortless stuntman / best friend Cliff Booth (Brad Pitt). Dalton is obsessed with the rest of his decaying television and film career, while the studio has long viewed Booth as an unnecessary and unwanted person. As a driver, a handyman, and perhaps the most relevant thing is the emotion. The support provider remains on your personal payroll. Belonging to an era full of colors, hippies, and social divisions, the couple was unaware of their status, and they twisted and twisted in their lives, neither charming enough to be truly elitist nor gloomy enough to be worthy of true sympathy.
If this rather abstract film is uncomfortably classified, the most appropriate description is a lighthearted buddy comedy. DiCaprio and Pete are two of the most famous stars of their time. Their cast is perfect and they inject warmth and “credibility” into the characters who stumbled to find their goals in an ever-changing world. The movie is lazily described as a love letter to Hollywood, but there may be real elements hidden in it. Either Tarantino proved that in the era of Marvel and Marvel, the original plays starring Aris actors may still be successful or, on the contrary, he is offering his bittersweet odes and goodbyes to the movies of the past.
Although slight by the standard that people expect from the Tarantino film, the film is the beginning of a conversation and changes each time it is re-watched, providing a window into Hollywood’s past. Of course, there are moments of tension and violence, but they are rare and far apart. This movie wants to take you on a leisurely tour of the sunny boulevards of Los Angeles, but you don’t need to wear a seat belt-take off your shoes, sit back and enjoy the journey.
(PD: Tarantino once again gave up historical accuracy to provide a “hypothesis?” ending.

The film industry generally believes that the original “King Kong” is an allegory of African colonialism and the slave trade. Filmmakers, including Quentin Tarantino, believe that it doesn’t matter whether this is the intention of the 1933 film: this is the film made, influenced by the subjective worldview and the subconscious mind of the people involved. Influence. Production:
This brings us to “Joker”, which is the most anticipated movie of 2019 and one of the most controversial works this year. The audience paid attention to the origin of the notorious super villain, watched the beginning of the man behind the make-up, and watched him deal with the harsh struggle of daily life in Gotham City where crime and rats are infested. Here, men reflect the city: isolation, frustration, jealousy and anger, on the verge of collapse.
There is so much discussion about “Joker” that another personal comment can get lost in the vortex of noise. As more and more people get a chance to see this movie, the noise will get louder. However, I have to say: “Joker” is a powerful, inspiring and effective movie. For better or for worse, it is important and relevant, because it is so close to home, it is very scary, reflecting the negative and cynical atmosphere of most people in modern Western society.
So we go back to the “King Kong” comparison: it doesn’t matter if this explanation is the intention of director Todd Phillips and his team. This is the movie they made. This is how “Joker” has been and will continue to be understood: a fable that observes the worst factors in society with a microscope, and illustrates its main theme in an overly stylized, cinematic presentation.
“Joker” is without a doubt a win for the movie. Joaquin Phoenix (Joaquin Phoenix) injects charm into this character, and I daresay that sympathy should make you and your cognitive dissonance uncomfortable. Although his affected and smooth movements are equally exciting and tempting, this man was pushed to the brink by the suffering of his survival today, and he acted in unexpected but violent ways, making him the vanguard and center of a society that rejected him. He achieved the fame he was seeking in a much more twisted way than he had imagined, but it still came. The stark iteration of this role makes you wonder, despite everything he has done and will do, can you understand his point of view?
This is a movie of serious choice—choosing to feature the original and dark version of Joker, killing people suddenly, cruelly and unceremoniously. Demonstrate options for a complete Joker transition with Gary Glitter songs. As my good friend Joe said, the decision to let filmmakers know about a film can be interpreted as a “call” to dissatisfied people in society. These choices have now been made. Whatever happens, inside and outside the film industry, one thing is certain: we will talk about “clowns” for a long time.

The era of the “Whodunnit” has passed, which, if Kenneth Branagh’s clumsy 2017 adaptation of “Murder on the Orient Express” is any indication, is a good thing.

In “Knives Out,” a modern murder mystery with an interesting plot and indisputably excellent cast, director Rian Johnson gives us an updated take on this structure just a few years later.

The answer is yes! “From the very beginning, “Knife Out” brought the audience into its world, juxtaposing the classic tone of the format with a more modern collection of scenes and characters. The main location of the story, a house, an isolated field, Direct shot from the “Whodunnit” script, it perfectly presents and contains old and new trinkets, including intricate ornaments and secret windows, as well as elegant environments and challenging coffee cups, which read: “My home.” My rules. My coffee. “The most important thing is that this film strikes the right balance between simplicity and complexity, while also paying tribute to the films that inspired it and gave them new changes.
The central theme of the story is the aftermath of the hypothetical suicide of Harlan Sloby (Christopher Plummer). Harlan Sloby (Christopher Plummer) is a well-known crime writer and a well-rounded crime writer. Popular tycoons, thieves, and leech gang patriarchs can hardly be described as a family. With the arrival of the famous private investigator Benoit Blanc (Daniel Craig), the investigation that was about to end became a murder investigation: everyone is a suspect. The first act of film
is admirably sharp and graceful, promoted with effortless composure and humor through preliminary interviews with each character. Each character has been revealed to have a potential motivation to bring Harlan to the afterlife, but this is the situation surrounding death. How and when did someone in the family act like this?
In fact, this movie can be described as a long red herring, leading the audience down a fascinating path, holding our attention tightly until … nothing. However, the excellent performance of “Blade Out of the Sheath” ultimately disappointed him, and the story built to the point where it was almost impossible for most of the characters to support murder, except for one or more of its characters. It was. The identity of the killer or murderer is so obvious that it is almost unbelievable – the audience is likely to expect an additional turning point, unfortunately, it did not appear.
This is not to say that this movie is not worth your time or money. This is a lighthearted, fascinating, self-aware, interesting and sometimes very interesting game, each actor is as close to his Agame as possible. For you to guess if your two-hour runtime is satisfying enough, it can be worse than being a little hobbyist detective on a rainy winter day.

Rainwater harvesting is a technique of collecting and storing rainwater for future use. It is a traditional method of storing rain water in underground tanks, ponds, lakes, check dams and used in future. The main purpose of rain water harvesting is to make the rainwater percolate under the ground so as to recharge ‘ groundwater level’.

Methods of rainwater harvesting

Roof top rainwater harvesting: Roof tops are excellent rain catchers. The rain water that falls on the roof of the houses, apartments, commerical buildings etc. Is collected and stored in the surface tank and can be used for domestic purpose.

Recharge pit: In this method, the rain water is first collected from the roof tops or open spaces and is directed into the percolation pits through pipes for filtration. After filtration the rain water enters the recharge pits or ground wells.

People living in rural areas adopt a variety of water collecting methods to capture and store as rain water. Some of the methods used are 1) Digging of tanks or lakes ( Eris): It is one of the traditional water harvesting system in Tamil Nadu. Eris are constructed in such a way that if the water in one eri overflows, it automatically gets diverted to the eri of the next village, as these Eris are interconnected

Ooranis: These are small ponds to collect rainwater. The wao is used fo various domestic purpose ( drinking, washing and bathing). These ponds cater the nearby villages.

A musical instrument is a device created or adapted to make musical sounds . In principle, any object that produces sound can be considered a musical instrument—it is through purpose that the object becomes a musical instrument. A person who plays a musical instrument is known as an instrumentalist. The history of musical instruments dates to the beginnings of human culture. Early musical instruments may have been used for rituals, such as a horn to signal success on the hunt, or a drum in a religious ceremony. Cultures eventually developed composition and performance of melodies for entertainment. Musical instruments evolved in step with changing applications and technologies.

The date and origin of the first device considered a musical instrument is disputed. The oldest object that some scholars refer to as a musical instrument, a simple fults, dates back as far as 67,000 years. Some consensus dates early flutes to about 37,000 years ago. However, most historians believe that determining a specific time of musical instrument invention is impossible, as many early musical instruments were made from animal skins, bone, wood, and other non-durable materials.

Musical instruments developed independently in many populated regions of the world. However, contact among civilizations caused rapid spread and adaptation of most instruments in places far from their origin. By the class, instruments from were in maritime Southeast Asia, and Europeans played instruments originating from North Africa. Development in the Americas occurred at a slower pace, but cultures of North, Central, and South America shared musical instruments.

A musical instrument is a device created or adapted to make musical sounds. In principle, any object that produces sound can be considered a musical instrument—it is through purpose that the object becomes a musical instrument. A person who plays a musical instrument is known as an instrumentalist. 

1. Advantages of having a three-day weekend instead of a two-day weekend
2. Why everyone should visit Disney World
3. Allow married women to enter Miss World and Miss Universe pageants.
4. There couldn’t be enough beauty contests for children!
5. Beauty contests degrade women.
6. Some market toys provoke and promote violent behavior.
7. Mac is better than PC
8. Santiago de Chile tourists must be made aware of pickpocketers. (or another city)
9. Love is far more powerful than hate
10. Make free public wi-fi available
11. Bike-sharing programs
12. Stealing from the rich to give to the poor is not nobel.
13. The morals behind lying
14. Silly games like Candy Crush are making people less intelligent
15. Using hands-free devices while driving
16. Using lie detector tests for employment purposes
17. What doesn’t kill you makes you stronger
18. Money can’t buy happiness
19. Is Batman a real superhero?
20. Why there aren’t more female construction workers
21. Lie detector tests are inaccurate.
22. Organic food tastes better.
23. Alternative power is the answer to our energy crisis.
24. It’s immoral to genetically design babies.
25. Every property needs to have at least one tree.
26. Nursery rhymes need to be looked at better.
27. Hostels are not a place for children.
28. Plant fruit trees on sidewalks.
29. Religion and science can go hand in hand.
30. Everyone should know how to swim.
31. Not wearing a seat belt a personal choice.
32. Opposites will always attract.
33. Climate change is always changing.
34. Not enough is done to end world hunger.
35. Battery farming is unethical.
36. People shouldn’t be paying for drivers licenses.
37. Smokers make the most acquaintances.
38. First impressions are always right.
39. Cash should be abandoned completely.
40. Allow mind reading during poker.
41. Minimum wage is too low.
42. Security cameras are an invasion of privacy.
43. Clients don’t want birthday messages from businesses.
44. Allow casual dress clothes in the workplace.
45. Make public transport free.
46. The welfare system doesn’t work.
47. Organ donors should be paid.
48. All kids on a winning team should get a trophy.
49. Illegal immigrants don’t harm the economy.
50. Humans are vegetarian by nature.
51. Self-driving cars will cause fewer accidents.
52. It is time to include internet slang to dictionaries.
53. Teens are unfairly stereotyped.
54. Group homes are better than foster care.
55. Guns don’t kill people.