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// BRAIN &

INTERNET

Otello Zilli/ BrainCo

04/05/2022

Human Brain

Human Brain

The human brain is the central organ of the human nervous system, and with the spinal cord makes up the central nervous system. The brain consists of the cerebrum, the brain system and the cerebellum. It controls most of the activities of the body, processing, integrating, and coordinating the information it receives from the sense organs, and making decisions as to the instructions sent to the rest of the body. The brain is contained in, and protected by, the skull bones of the head.

Brain Division

The Brain Divides in 2 big segments or Hemispheres:

-Left Hemisphere

-Right Hemisphere

Left Hemisphere

The left side of the brain controls the right side of the body. If the left side of the brain is dominant, the person is logical and more academically inclined.

You most likely excel in academics, especially math and science. The left hemisphere of the brain is also called the digital brain. It is the one responsible for the following:

Verbal

Analytical

Order

Reading

Writing

Computations

Sequencing

Logic

Mathematics

Thinking in words

Linear thinking

Visual based languages such as in mute and deaf people

Left hemisphere dominant people usually excel in the following fields:

Business analyst

Programmer

Reporter

Scientist

Network administrator

Right Hemisphere

The right side of the brain controls the left side of the body. A right hemisphere dominant person excels in arts. It is visual and intuitive. It is also called the analog brain. It is responsible for the following:

Creativity

Imagination

Intuition

Holistic thinking

Arts

Feelings visualization

Non-verbal cues

Rhythm

Daydreaming

Emotions

Right hemisphere dominant people usually excel in the following fields:

Graphic design

Interior designer

Musician

Painter

Psychologist

Counselor

Manager

6) The brain of a human contains approximately one hundred billion neurons

5) Headaches are caused by a chemical reaction in your brain combined with the muscles and nerves of your neck and head.

Brain Facts

1) Signs of successful brain surgeries go as far back as the Stone Age.

7) Your brain uses 20 percent of the oxygen and blood in your body

4) The human brain will grow three times its size in the first year of life. It continues to grow until you’re about 18 years old.

8) Computer or video games may help improve cognitive abilities. However, more studies must be conducted to learn how much they help or what types of games help.

3) About 75 percent of the brain is made up of water. This means that dehydration, even in small amounts, can have a negative effect on the brain functions.

2) An adult brain weighs about 3 pounds/1.36 kilos.

8 Brain Facts

Synapses

Synapses

Synapses are essential to the transmission of nervous impulses from one neuron to another. Neurons are specialized to pass signals to individual target cells, and synapses are the means by which they do so. At a synapse, the plasma membrane of the signal-passing neuron (the presynaptic neuron) comes into close apposition with the membrane of the target (postsynaptic) cell. Both the presynaptic and postsynaptic sites contain extensive arrays of molecular machinery that link the two membranes together and carry out the signaling process

NEURONS

NEURONS

Neurons (also called neurones or nerve cells) are the fundamental units of the brain and nervous system, the cells responsible for receiving sensory input from the external world, for sending motor commands to our muscles, and for transforming and relaying the electrical signals at every step in between. More than that, their interactions define who we are as people. Having said that, our roughly 100 billion neurons do interact closely with other cell types, broadly classified as glia (these may actually outnumber neurons, although it’s not really known).

The creation of new neurons in the brain is called neurogenesis, and this can happen even in adults.

How Do They Look Like?

How They Look

Spine = The small protrusions found on dendrites that are, for many synapses, the postsynaptic contact site.

Action potential= Brief electrical event typically generated in the axon that signals the neuron as 'active'. An action potential travels the length of the axon and causes release of neurotransmitter into the synapse. The action potential and consequent transmitter release allow the neuron to communicate with other neurons.

Dendrite =The receiving part of the neuron. Dendrites receive synaptic inputs from axons, with the sum total of dendritic inputs determining whether the neuron will fire an action potential.

Axon = The long, thin structure in which action potentials are generated; the transmitting part of the neuron. After initiation, action potentials travel down axons to cause release of neurotransmitter.

Information

Information

Information can be thought of as the resolution of uncertainty that manifests itself as patterns it answers the question of "What an entity is" and thus defines both its essence and the nature of its characteristics. The concept of information has different meanings in different contexts.[3] Thus the concept becomes synonymous to notions of constraint, communication, control, data, form, education, knowledge, meaning, understanding, mental stimuli, pattern, perception, proposition, representation, and entropy.

Internet

The Internet (or internet)[a] is the global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP)[b] to communicate between networks and devices. It is a network of networks that consists of private, public, academic, business, and government networks of local to global scope, linked by a broad array of electronic, wireless, and optical networking technologies. The Internet carries a vast range of information resources and services, such as the inter-linked hypertext documents and applications of the World Wide Web (WWW), electronic mail, telephony, and file sharing.

History

The origins of the Internet date back to the development of packet switching and research commissioned by the United States Department of Defense in the 1960s to enable time-sharing of computers.[2] The primary precursor network, the ARPANET, initially served as a backbone for interconnection of regional academic and military networks in the 1970s. The funding of the National Science Foundation Network as a new backbone in the 1980s, as well as private funding for other commercial extensions, led to worldwide participation in the development of new networking technologies, and the merger of many networks.[3] The linking of commercial networks and enterprises by the early 1990s marked the beginning of the transition to the modern Internet,[4] and generated a sustained exponential growth as generations of institutional, personal, and mobile computers were connected to the network. Although the Internet was widely used by academia in the 1980s, commercialization incorporated its services and technologies into virtually every aspect of modern life.

Network Cables

Network Cables

Networking cables are networking hardware used to connect one network device to other network devices or to connect two or more computers to share printers, scanners etc. Different types of network cables, such as coaxial cable, optical fiber cable, and twisted pair cables, are used depending on the network's physical layer, topology, and size. The devices can be separated by a few meters (e.g. via Ethernet) or nearly unlimited distances (e.g. via the interconnections of the Internet).

Electrons

Electron & Photons

The electron is a subatomic particle (denoted by the symbol e−) whose electric charge is negative one elementary charge

and happends to be part of the electric exchange happening in our home and everithing that works with electric in general (so Wi-Fi and internet are part of this too) these subatomic particles are used by the network cables to pass information via electricity

Photons

The photon is a type of elementary particle that serves as the quantum of the electromagnetic field, including electromagnetic radiation such as light and radio waves(witch are part of the internet), and the force carrier for the electromagnetic force there subatomic particles are use to pass information via light/air as the name says PHOTONS (witch means light particles in Greek)

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