MAGNITUDE 3.7 EARTHQUAKE

MILD earthquake was felt in the country’s capital and in it’s ncr on Monday night as a low-intensity earthquake hit near Haryana’s Jhajjar. The magnitude of the quake was 3.7, according to the National Center for Seismology.

The agency said the earthquake struck 10 kilometre north of Jhajjar at around 10.37 pm. Its depth was 5 kilometres.

Twitter users started sharing their earthquake experience, with many saying their homes shook because of the tremors.

Delhi, which lies close to a faultline, is susceptible to big earthquakes, geologists say. Since April 12, the Delhi National Capital Region (NCR) has recorded over two dozen earthquakes.

The city falls in seismic zone IV – a very high-risk zone. India is divided into four seismic zones — II, III, IV and V — according to increasing intensity and frequency of earthquakes.

If a magnitude 6 earthquake strikes Delhi, a large number of structures which do not follow safety norms are likely to be demolished, experts have said.

45 killed in military plan crash in philippines

Philippines

• One of world’s largest archipelago nations

• Situated in Southeast Asia in the Western Pacific Ocean

• Three main geographical areas – Luzon, Visayas, and Mindanao

• String of over 7,000 islands • Two largest islands are Luzon and Mindanao – make up for two-thirds of the total land area

• Only about one third of the islands are inhabited

Philippines

• Altogether about 50 volcanoes, more than 10 are
known to be active

• Mount Pinatubo in 1991 saw the world’s largest
volcanic eruptions of the 20th century

• Climate : tropical and strongly monsoonal

• Surrounded by south China to its west, Philippines sea to the east.

South China Sea

• Arm of the western Pacific Ocean

• Bounded on the northeast – Taiwan Strait

• On the east – Philippines

• On the southeast and south – coast of the Malay Peninsula

• On the west and north – the Asian mainland

• Parcel, spratly islands and scharborough Shoal – south China sea

• 9 dash line – in south China sea as well.

Optical Fibre

Development of optical fiber technology is considered to be a major driver behind the information technology revolution and the tremendous progress on global telecommunications that has been witnessed in recent years. Fiber optics, from the point of view of telecommunication, is now almost taken for granted in view of its wide-ranging application as the most suitable singular transmission medium for voice, video, and data signals. Indeed, optical fibers have now penetrated virtually all segments of telecommunication networks, whether transoceanic, transcontinental, intercity, metro, access, campus, or on-premise. The first fiber optic telecom link went public in 1977. Since that time, growth in the lightwave communication industry until about 2000 has been indeed mind boggling. According to a Lucent technology report, in the late 1990s optical fibers were deployed at approximately 4800 km/hr, implying a total fiber length of almost three times around the globe each day until it slowed down when the information technology bubble burst! The Internet revolution and deregulation of the telecommunication sector from government controls, which took place almost globally in the recent past, have substantially contributed to this unprecedented growth within such a short time, which was rarely seen in any other technology.

An optical fiber  is a flexible, transparent fiber cable made by drawing glass (silica) or plastic to a diameter slightly thicker than that of a human hair. Optical fibers are used most often as a means to transmit light between the two ends of the fiber and find wide usage in fiber-optic communications, where they permit transmission over longer distances and at higher bandwidths (data transfer rates) than electrical cables. Fibers are used instead of metal wires because signals travel along them with less loss; in addition, fibers are immune to electromagnetic interference, a problem from which metal wires suffer. Fibers are also used for illumination and imaging, and are often wrapped in bundles so they may be used to carry light into, or images out of confined spaces, as in the case of a fiberscope. Specially designed fibers are also used for a variety of other applications, some of them being fiber optic sensors and fiber lasers. Being able to join optical fibers with low loss is important in fiber optic communication. This is more complex than joining electrical wire or cable and involves careful cleaving of the fibers, precise alignment of the fiber cores, and the coupling of these aligned cores. For applications that demand a permanent connection a fusion splice is common. In this technique, an electric arc is used to melt the ends of the fibers together. Another common technique is a mechanical splice, where the ends of the fibers are held in contact by mechanical force. Temporary or semi-permanent connections are made by means of specialized optical fiber connectors. The field of applied science and engineering concerned with the design and application of optical fibers is known as fiber optics. The term was coined by Indian-American physicist Narinder Singh Kapany, who is widely acknowledged as the father of fiber optics.

Uses:

  • Optical fiber is used as a medium for telecommunication and computer networking because it is flexible and can be bundled as cables. It is especially advantageous for long-distance communications, because infrared light propagates through the fiber with much lower attenuation compared to electricity in electrical cables. This allows long distances to be spanned with few repeaters. 10 or 40 Gbit/s is typical in deployed systems.
  • Fibers have many uses in remote sensing. In some applications, the sensor is itself an optical fiber. Fibers are used to channel radiation to a sensor where it is measured. In other cases, fiber is used to connect a sensor to a measurement system.
  • Optical fiber can be used to transmit power using a photovoltaic cell to convert the light into electricity.
  • Optical fibers are used as light guides in medical and other applications where bright light needs to be shone on a target without a clear line-of-sight path. Many microscopes use fiber-optic light sources to provide intense illumination of samples being studied.
  • Optical fiber is also used in imaging optics. A coherent bundle of fibers is used, sometimes along with lenses, for a long, thin imaging device called an endoscope, which is used to view objects through a small hole. Medical endoscopes are used for minimally invasive exploratory or surgical procedures. Industrial endoscopes (see fiberscope or borescope) are used for inspecting anything hard to reach, such as jet engine interiors.
  • In some buildings, optical fibers route sunlight from the roof to other parts of the building (see nonimaging optics). Optical-fiber lamps are used for illumination in decorative applications, including signs, art, toys and artificial Christmas trees. Optical fiber is an intrinsic part of the light-transmitting concrete building product LiTraCon.
  • Optical fiber can also be used in structural health monitoring. This type of sensor is able to detect stresses that may have a lasting impact on structures. It is based on the principle of measuring analog attenuation.
  • In spectroscopy, optical fiber bundles transmit light from a spectrometer to a substance that cannot be placed inside the spectrometer itself, in order to analyze its composition. A spectrometer analyzes substances by bouncing light off and through them. By using fibers, a spectrometer can be used to study objects remotely.
  • Fiber-optic sights for handguns, rifles, and shotguns use pieces of optical fiber to improve the visibility of markings on the sight.

Dropati Printing Press

It is true that well-designed print collateral such as business cards, brochures, and banners may boost your confidence, but smart design can do so much more. Your print items will be more effective if they are designed well. Great design will help you achieve your goal, whether you’re attempting to sell a product, change people’s perceptions of your brand, or send a message.

About Dropati Printing Press

Dropati Printing Press is one of Lahan’s best multi-color offset printers. The business began as a “Commercial Designer.” With their innovative work and ubiquity of services in print requirements for both government and private sector products.

Main goal is to deliver exceptional results that meet or surpass clients’ expectations. They exclusively utilize high-quality materials and cutting-edge technology. The highly-experienced professional staff uses the most up-to-date technologies to ensure that every task is performed according to specifications, on schedule, and with unwavering quality control at every stage of the manufacturing process.

Administration they give:

  1. Business and Industrial Printing
  2. Multicolor books
  3. Magazines
  4. Leaflets
  5. Writing
  6. Store covers
  7. Indexes
  8. Handouts
  9. Banners
  10. Danglers
  11. Stickers
  12. Marks
  13. Application Form
  14. Print Books Banners Schedules,
  15. Record File
  16. Wedding card
  17. Calendar
  18. Books

I would strongly suggest them to anyone in need of professional design and printing services. They are generous to customers and responsive to all demands and wants. They are willing to work with you to meet your one-of-a-kind wishes and thoughts; they are resourceful, imaginative, and attentive. They also have a fantastic ability to ‘bring things down to the customer’s level’ when it comes to explaining complicated mechanical concerns.

How is blue light affecting us?

Pandemic has made today’s world a 100% digital world. With digitalisation on the peak so, is our daily digital gadget usage. We are spending; 7-10 hours behind a screen doing our work, attending online classes or Netflix and chilling. While doing so, we are exposing ourselves to harmful blue light radiated from these digital gadgets. 

This blue light is causing eye strain and sleep deprivation in most of us. 

Why blue light radiation causes eye strain?

The reason is when someone is exposed to the blue light coming from laptop screens or mobile screens they tend to blink fewer times than usual. This causes eye strain resulting in discomfort in the eyes. Blue light has the shortest wavelength and the highest frequency. So when it enters the eyes it causes much more scattering than any other light. This causes glare disability and discomfort glare at low intensities. 

Blue light causes difficulty in falling asleep

Blue light exposure disturbs the circadian rhythm of the human body. In the olden days, the only source of blue light exposure was during the daylight hours and when the night falls, the body automatically signals the body to sleep by secreting melatonin. But due to the exposure to blue light, this melatonin secretion is suppressed and it thus affects the sleeping pattern. 

Some of the best ways to prevent this blue light exposure is by reducing the screen time, using a blue light filter app on your gadget, wearing spectacles with blue light filter and using the 20-20 rule where you work on the screen for 20 minutes and then take a 20 minutes no gadget break.