Today I Learn

25 Feb 2023 12:43

What is Cyber Terrorism ?

Cyber terrorism is the use of Internet based terror attacks, done deliberately in order to create disturbances or havoc in usual working of the internet.  Since, many computers are connected through internet, the chances of high disruption in computer related services in personal as well commercial devices. Attacks through cyber terrorism can be in form of various illegal activities whose number is on a constant increase, a few are most lethal and common.

These include attacks from viruses, attacks from Trojans, attacks from BOTS, attacks on databases, black hat hacking etc.

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18 Feb 2023 03:29

What are the types of SIM ?

There are basically 3 types of SIMs:

Non-programable - cannot be programmed and must be replaced with a new SIM if changing SIM info.

Programable - integrated into the phone, can be reprogrammed, i.e., does not have to be replaced if changing info (also referred to as embedded).

Soft SIM - an application, not a separate piece of hardware, in the phone, it can be programmed.
Soft SIMs are not really deployed yet ,because of security concerns.

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12 Feb 2023 06:48

How was pregnancy tested back then?

Ancient Egyptians mixed the urine with grains.

At least, they
knew where to look at. In the middle ages, urine samples were mixed with alcohol.

The samples were also analysed based on colour. Around the 19th century, focus
was on structures seen under the microscope.

Early 20th century, they injected the tested urine into rabbits. Early 60s, they reacted antibodies
with the samples.

It had a lot of false positive results.

Presently, blood and urine samples are tested for levels of a specific hormone hCG
(human chorionic
gonadotropin).

This is the most reliable of the bunch.

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08 Feb 2023 16:01

New Words Daily with its Meaning.

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06 Feb 2023 03:00

How many types of Pandas exist?

There are two types of Pandas in existence.

The giant panda (which is the more popular type) and the red panda.

They are both found in southwest China and feed majorly on bamboo.

The giant panda can attain a height of 4 to 6 feet. It lives in the forests of southwest China, and its diet consists largely of bamboo.

The red panda is about 42 inches long, including its tail, and is found in southwest China and in the eastern Himalayas.

While it relies on bamboo for most of its sustenance, it also dines on berries, insects and bird eggs.

Both types of pandas are endangered.

𝗜𝗳 𝘆𝗼𝘂 𝗹𝗶𝗸𝗲 𝗶𝘁 𝘁𝗵𝗲𝗻 𝘀𝗵𝗮𝗿𝗲 𝗶𝘁.
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01 Feb 2023 02:47

What is Blue Eyes Technology ?

The main objective of  Blue eyes technology is to develop a computational machine having sensory and perceptual ability like those of humans.

The Blue Eyes technology  system is a combination of a set of hardware and software systems.

The hardware consists of a central system unit (CSU) and data acquisition unit (DAU).

Researchers are attempting to add more capabilities to computers that will allow them to interact with humans, recognize human presents, talk, listen, or even guess their feelings.

The Blue Eyes technology aims at creating computational machines that have perceptual and sensory ability like those of human beings.

𝗜𝗳 𝘆𝗼𝘂 𝗹𝗶𝗸𝗲 𝗶𝘁 𝘁𝗵𝗲𝗻 𝘀𝗵𝗮𝗿𝗲 𝗶𝘁.
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30 Jan 2023 20:12

New Words Daily with its Meaning.

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28 Jan 2023 03:44

New Words Daily with its Meaning.

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28 Jan 2023 02:56

Research indicates that some of the products we use to avoid germs may contribute to the development of conditions like asthma and allergies.

𝗜𝗳 𝘆𝗼𝘂 𝗹𝗶𝗸𝗲 𝗶𝘁 𝘁𝗵𝗲𝗻 𝘀𝗵𝗮𝗿𝗲 𝗶𝘁.
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27 Jan 2023 03:29

How does snow form?

Snow is formed when
temperatures are low
and there is moisture in
the atmosphere in the
form of tiny ice crystals.

When these tiny ice
crystals collide they
stick together in clouds
to become snowflakes.

If enough ice crystals
stick together, they'll
become heavy enough
to fall to the ground.
This tends to occur
when the temperature
is below 2°C.

So it's not
expected in many parts
of Africa due to the heat.

𝗜𝗳 𝘆𝗼𝘂 𝗹𝗶𝗸𝗲 𝗶𝘁 𝘁𝗵𝗲𝗻 𝘀𝗵𝗮𝗿𝗲 𝗶𝘁.
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26 Jan 2023 05:04

What is Bio Toilet ?

Bio-Digester is a decomposition mechanized  toilet  system which decomposes Human Excretory Waste in the digester tank using specific high graded bacteria further converting it into methane and water, discharged further to the desired surface.

𝗜𝗳 𝘆𝗼𝘂 𝗹𝗶𝗸𝗲 𝗶𝘁 𝘁𝗵𝗲𝗻 𝘀𝗵𝗮𝗿𝗲 𝗶𝘁.
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22 Jan 2023 01:54

What does G stand for in films?

In the words of the Motion Picture Association, G is for General Audiences — all ages admitted, meaning there is nothing in theme, language, nudity, sex, violence or other matters that the ratings board thinks would offend parents whose younger children view the picture.

𝗜𝗳 𝘆𝗼𝘂 𝗹𝗶𝗸𝗲 𝗶𝘁 𝘁𝗵𝗲𝗻 𝘀𝗵𝗮𝗿𝗲 𝗶𝘁.
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15 Jan 2023 14:59

New Words Daily with its Meaning.

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13 Jan 2023 02:39

New Words Daily with its Meaning.

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12 Jan 2023 02:15

Flames have no shadow for the same reason the sun has no shadow - they emit light, rather than blocking it.

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20 Feb 2023 01:53

New Words Daily with its Meaning.

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17 Feb 2023 11:22

What is Paraffin Wax ?

Paraffin wax is a white or colourless soft solid derivable from petroleum, coal or oil shale, that consists of a mixture of hydrocarbon molecules containing between twenty and forty carbon atoms.

It is solid at room temperature and begins to melt above approximately 37 °C (99 °F); its boiling point is greater than 370 °C (698 °F).

Common applications for paraffin wax include lubrication, electrical insulation, and candles;  dyed paraffin wax can be made into crayons.

It is distinct from kerosene, another petroleum product that is sometimes called paraffin.

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10 Feb 2023 01:51

Why do various planets appear to be of different colours?

Each planet has a different colour, because of its unique compositions.

Mercury is grey.  Since this planet has no atmosphere, we see only the dark rocky surfaces with plains, craters and ridges like those on the Moon.

Venus is yellowish white due to the thickness of is colourless sulphuric acid clouds.

Mars, the red orange planet is covered with a red dust of iron oxide. It has some spectacular features like volcanoes and enormous mountains.

Jupiter has white and orange bands. Ammonia clouds cause the white bands, while orange is due to the ammonium hydrosulphide clouds.

The north of Saturn is blue and the south, pale yellow.  The ring around the planet blocks the Sun's rays from reaching the northern half.

Uranus and Neptune appears light blue due to the methane clouds.

Neptune is slightly darker blue because of its great distance from the sun.

When watched from space Earth appears to be light-blue with white patches of clouds.

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08 Feb 2023 02:45

What is Blue Brain Technology ?

The  Blue Brain, a Swiss national brain initiative, aims to create a digital reconstruction of the brain by reverse engineering  mammalian brain circuitry.

The mission of the project, founded in May 2005 by the Brain and Mind Institute of the  École Polytechnique Fédérale de Lausanne (EPFL) in Switzerland, is to use biologically-detailed digital reconstructions and simulations of the mammalian brain (brain simulation) to identify the fundamental principles of brain structure and function in health and disease.

𝗜𝗳 𝘆𝗼𝘂 𝗹𝗶𝗸𝗲 𝗶𝘁 𝘁𝗵𝗲𝗻 𝘀𝗵𝗮𝗿𝗲 𝗶𝘁.
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04 Feb 2023 04:20

Why can't we see light emitted from TV remote while a camera can?

The human eye can only detect wavelengths up to about 725 nm efficiently, so we don't see the beam from the IR remote.

Cameras, on the other hand, typically are made with silicon sensors, naturally sensitive to wavelengths up to about 1100 nm, which gives a photon energy just slightly below the silicon band gap energy.

Therefore the camera sensor does see beams from typical IR remotes.

𝗜𝗳 𝘆𝗼𝘂 𝗹𝗶𝗸𝗲 𝗶𝘁 𝘁𝗵𝗲𝗻 𝘀𝗵𝗮𝗿𝗲 𝗶𝘁.
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31 Jan 2023 16:16

𝗪𝗛𝗬 𝗶𝘀 𝘁𝗵𝗲𝗿𝗲 𝗻𝗼 𝗹𝗶𝗳𝗲 𝗼𝗻 𝘁𝗵𝗲 𝗺𝗼𝗼𝗻❓

✅Without any atmosphere, or the ability to create one, the moon cannot provide the basic conditions for life to develop.

📌The moon cannot support life because it does not have an atmosphere and is not geologically active. Additionally, the low gravity of the moon would make it difficult to hold onto any molecules present.
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𝗜𝗳 𝘆𝗼𝘂 𝗹𝗶𝗸𝗲 𝗶𝘁 𝘁𝗵𝗲𝗻 𝘀𝗵𝗮𝗿𝗲 𝗶𝘁.
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30 Jan 2023 05:58

𝗪𝗛𝗬 𝗱𝗼𝗲𝘀 𝗵𝗮𝗶𝗿 𝗹𝗼𝘀𝘀 𝗵𝗮𝗽𝗽𝗲𝗻𝘀 𝗶𝗻 𝗰𝗵𝗲𝗺𝗼𝘁𝗵𝗲𝗿𝗮𝗽𝘆❓

✅Managing your life with cancer has a great number of challenges. Some you can control or manage but others you cannot. For many individuals, the worst thing about chemotherapy is the thought of losing their hair.

📌Hair growth occurs under the surface of skin. Each strand of hair goes through steps of a cycle, from active growth to shedding. chemotherapy drugs are more likely than others to cause hair loss, and different doses can cause anything from a mere thinning to complete baldness.
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𝗜𝗳 𝘆𝗼𝘂 𝗹𝗶𝗸𝗲 𝗶𝘁 𝘁𝗵𝗲𝗻 𝘀𝗵𝗮𝗿𝗲 𝗶𝘁.
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28 Jan 2023 02:56

US represents 4% of the world's population but produces 12% of municipal solid waste, a stark contrast with China and India.

𝗜𝗳 𝘆𝗼𝘂 𝗹𝗶𝗸𝗲 𝗶𝘁 𝘁𝗵𝗲𝗻 𝘀𝗵𝗮𝗿𝗲 𝗶𝘁.
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28 Jan 2023 02:55

What is Gi-Fi ?

Gi-Fi or gigabit wireless refers to a wireless communication at a data rate of more than one billion bits (gigabit) per second. By 2004 some trade press used the term "Gi-Fi" to refer to  faster versions of the IEEE 802.11 standards marketed under the trademark Wi-Fi. 

Some press reports called this "GiFi".

This leads to the development of a new technology called
Gi-Fi.

The Gi-Fi technology has faster information rate, low cost for short range transmission and consumes less power.

Gi-Fi is developed on an integrated wireless transceiver chip.

𝗜𝗳 𝘆𝗼𝘂 𝗹𝗶𝗸𝗲 𝗶𝘁 𝘁𝗵𝗲𝗻 𝘀𝗵𝗮𝗿𝗲 𝗶𝘁.
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26 Jan 2023 05:06

New Words Daily with its Meaning.

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25 Jan 2023 04:49

What is The meaning of Limited (Ltd.) Company ?

In a  limited company, the liability of members or subscribers of the  company is limited to what they have invested or guaranteed to the  company.

Limited companies  may be  limited  by shares or by guarantee.

The former may be further divided into public  companies and private  companies.

𝗜𝗳 𝘆𝗼𝘂 𝗹𝗶𝗸𝗲 𝗶𝘁 𝘁𝗵𝗲𝗻 𝘀𝗵𝗮𝗿𝗲 𝗶𝘁.
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19 Jan 2023 04:43

What is a clepsydra ?

A clepsydra is an ancient device for measuring time by means of the flow of water from a container.

A simple form of clepsydra was an earthenware vessel with a small opening through which the water dripped; as the water level dropped, it exposed marks on the walls of the vessel that indicated the time that had elapsed since the vessel was full.

Additional info: viscosity and temperature does not permit the accuracy of the clock by modern standards but usually they are refilled everyday and so the cumulative error is not usually much.

𝗜𝗳 𝘆𝗼𝘂 𝗹𝗶𝗸𝗲 𝗶𝘁 𝘁𝗵𝗲𝗻 𝘀𝗵𝗮𝗿𝗲 𝗶𝘁.
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14 Jan 2023 08:47

𝗪𝗛𝗬 𝗙𝗶𝘀𝗵 𝗗𝗶𝗲 𝗮𝗳𝘁𝗲𝗿 𝗮 𝗪𝗮𝘁𝗲𝗿 𝗖𝗵𝗮𝗻𝗴𝗲❓

✅Fish are a great option as a pet. .any fish tank needs regular cleaning and water changes. This must be done carefully, otherwise the fish can die.but Why do fish die after a water change???

📌Imagine if someone grabbed you from your home and put you in an entirely new one in the span of three minutes! It would surprise you, right? The fish are back in the same tank, but the environment has completely changed.The nutrient, oxygen, ammonia and nitrate levels have all shifted very rapidly. If the new water is suddenly added from the tap, even the water temperature differs. This scares the fish and puts the poor things in a shocked and stressed state.
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𝗜𝗳 𝘆𝗼𝘂 𝗹𝗶𝗸𝗲 𝗶𝘁 𝘁𝗵𝗲𝗻 𝘀𝗵𝗮𝗿𝗲 𝗶𝘁.
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13 Jan 2023 02:38

How do we judge the direction of a sound?

We can get the direction of sound only because we have two ears.

The sound waves reach the right and left ear with a small time difference because the ears are at slightly different distances from the source of sound.

The ear drums vibrate and the ear ossicle transmits the impulse to the inner ear.

The inner ear sends it for the to the brain where the signals from both ears reach at marginally different times.

The brain calculate the direction of the sound from the tiny difference in these times.

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11 Jan 2023 14:52

New Words Daily with its Meaning.

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