Sunday, January 6, 2019

HTML CODING FACTS AND IDEAS


Hypertext Markup Language (HTML) is the standard markup language for creating web pages and web applications. With Cascading Style Sheets (CSS) and JavaScript, it forms a triad of cornerstone technologies for the World Wide Web

What are the benifits of HTML Validation?

Clean HTML code provides the following four benefits:
1. Website Accessibility - Validating your HTML code helps pinpoint potential roadblocks that could prevent search engine spiders or visitors from accessing your entire site.
2. Faster Loading - Removing unneeded code can help create smaller pages which intern helps your website load faster. Faster loading provides a better customer experience and can help with search engine rankings.
3. Less load on servers - Clean code will not tax your server as much. This cuts down on the amount of Web space and bandwidth used and can reduce the cost of hosting your site.
4. Browser Compatibility - Validated code ensures your site is compatible with current Web browsers, such as Internet Explorer(R) and Fire Fox
HERE ARE SOME EXAMPLES OF
HTML CODING



"HyperText" refers to links that connect web pages to one another, either within a single website or between websites. Links are a fundamental aspect of the Web. By uploading content to the Internet and linking it to pages created by other people, you become an active participant in the World Wide Web. HTML uses "markup" to annotate text, images, and other content for display in a Web browser. HTML markup includes special "elements" such as <head></head>
, <head><title>, </title>
</head>
, <header>, <footer>, <article>, <section>, <p>, </p>
<div>, <span>, <img></img>
, <aside>, <audio>, <canvas>, <datalist>, <details>, <embed>, <nav>, <output>, <progress>, <video><_ and="and" _="_">". The name of an element inside a tag is case insensitive. That is, it can be written in uppercase, lowercase, or a mixture. For example, the <title>tag can be written as </title>
<title>,</title>
<title></title></video></progress>
</output></nav>
</embed></details>
</datalist></canvas>
</audio></aside>
</span></div>
</section></article>
</footer></header>

What are the uses of HTML CODING?
HTML code ensures the proper formatting of text and images so that your Internet browser may display them as they are intended to look. Without HTML, a browser would not know how to display text as elements or load images or other elements. HTML also provides a basic structure of the page, upon which Cascading Style Sheets are overlaid to change its appearance. One could think of HTML as the bones (structure) of a web page, and CSS as its skin (appearance).

Is only HTML Programming language is used to develop a Website? 
  1. HTML is not the only Programming language used to develop a good website. Whereas to develop a better and good looking website it should be a combination of HTML (Hyper Text Markup Language), PHP (Hypertext Preprocessor), CSS (Cascading Style Sheets)

I hope everyone learned something🙊












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ALIEN
Extraterrestrial life,also called alien life or, if it is a sentient or relatively complex individual, an "extraterrestrial" or "alien"), is life  that occurs outside of Earth and that probably did not originate from Earth. These hypothetical life forms may range from simple  prokaryotes to beings with civilizations far more advanced than humanity. The Drake equation speculates about the existence of intelligent life elsewhere in the universe. The science of extraterrestrial life in all its forms is known as exobiology.

Since the mid-20th century, there has been an ongoing search for signs of extraterrestrial life. This encompasses a search for current and historic extraterrestrial life, and a narrower search for extraterrestrial intelligent life. Depending on the category of search, methods range from the analysis of telescope and specimen data to radios used to detect and send communication signals.

The concept of extraterrestrial life, and particularly extraterrestrial intelligence, has had a major cultural impact, chiefly in works of science fiction. Over the years, science fiction communicated scientific ideas, imagined a wide range of possibilities, and influenced public interest in and perspectives of extraterrestrial life.


BLACKHOLE

A black hole is a region of spacetime  exhibiting such strong gravitational effects that nothing not even particles and electromagnetic radiation such as light can escape from inside it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. The boundary of the region from which no escape is possible is called the event horizon. Although the event horizon has an enormous effect on the fate and circumstances of an object crossing it, no locally detectable features appear to be observed. In many ways a black hole acts like an ideal black body, as it reflects no light. Moreover, quantum field theory in curved spacetime predicts that event horizons emit Hawking radiation, with the same spectrum as a black body of a temperature inversely proportional to its mass. This temperature is on the order of billionths of a kelvin for black holes of stellar mass, making it essentially impossible to observe.


LIFE IN MARS

The Mars ocean hypothesis states that nearly a third of the surface of Mars was covered by an ocean of liquid water early in the planet’s geologic history. This primordial ocean, dubbed Paleo-Ocean and Oceanus Borealis, would have filled the basin Vastitas Borealis in the northern hemisphere, a region which lies 4–5 km (2.5–3 miles) below the mean planetary elevation, at a time period of approximately 4.1–3.8 billion years ago. Evidence for this ocean includes geographic features resembling ancient shorelines, and the chemical properties of the Martian soil and atmosphere. Early Mars would have required a denser atmosphere and warmer climate to allow liquid water to remain at the surface.


THE HOTTEST PLANET IN OUR SOLAR SYSTEM


Venus is the second planet from the Sun known as the hottest planet in our solar systen orbiting it every 224.7 Earth days. It has the longest rotation period (243 days) of any planet in the Solar System and rotates in the opposite direction to most other planets (meaning the Sun would rise in the west and set in the east).It does not have any natural satellites. It is named after the Roman goddess of love and beauty. It is the second-brightest natural object in the night sky after the Moon, reaching an apparent magnitude of −4.6 – bright enough to cast shadows at night and, rarely, visible to the naked eye in broad daylight. Orbiting within Earth's orbit, Venus is an inferior planet and never appears to venture far from the Sun; its maximum angular distance from the Sun (elongation) is 47.8°.

         
            THE BIG BANG THEORY
The Big Bang theory is the prevailing cosmological model for the observable universe from the earliest known periods  through its subsequent large-scale evolution. The model describes how the universe expanded from a very high-density and high-temperature state, and offers a comprehensive explanation for a broad range of phenomena, including the abundance of light elements, the cosmic microwave background (CMB), large scale structure and Hubble's law (the farther away galaxies are, the faster they are moving away from Earth). If the observed conditions are extrapolated backwards in time using the known laws of physics, the prediction is that just before a period of very high density there was a singularity which is typically associated with the Big Bang. Physicists are undecided whether this means the universe began from a singularity, or that current knowledge is insufficient to describe the universe at that time. Detailed measurements of the expansion rate of the universe place the Big Bang at around 13.8 billion years ago, which is thus considered the age of the universe. After its initial expansion, the universe cooled sufficiently to allow the formation of subatomic particles, and later simple atoms. Giant clouds of these primordial elements (mostly hydrogen, with some helium and lithium) later coalesced through gravity, eventually forming early stars and galaxies, the descendants of which are visible today. Astronomers also observe the gravitational effects of dark matter surrounding galaxies.

I HOPE EVERYONE GET SOME IDEAS OR FACTS ABOUT THE MYSTERIES OF OUR UNIVERSE.🌌





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