ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

Do You Know How Does Our Sun Produce Light?

Updated on September 14, 2011

Nuclear power is the only thing that gives life to our sun. That can be produced in two ways namely nuclear fisson and nuclear fusion. In atomic power plants nuclear fisson is taking place in which uranium-235 atom splits into fast moving lighter elements. But in nuclear fusion energy is produced by fusing nuclei like hydrogen to more massive helium. This same thing is happening in our sun. Obviously it is very hard to produce energy through nuclear fusion in our earth as it requires very high temperature and pressure and also the process has to overcome the repulsion between the same positvely charged hydrogen atoms. Fusion involves low mass nuclei whose combined mass is more than the resulting fused massive nucleus. The loss of mass in the process is converted to energy according to Einstein's law of conservation of mass. E = mc^2. Here m = loss of mass in the process and c = velocity of the light.

We can simply say the nuclear fusion happening in the sun as burning of mostly found hydrogen atoms to form helium atoms. The core part of the sun which extends up to 25% of the radius from it's centre is existing with very hot temperature with about 1.5 crore degree centigrade and extreme pressure. That is the place where nuclear fusion is happening. But fusion won't immediately happen even at such high temperature and pressure as they are repelling with each other. Every fusion of hydrogen atoms in the sun maay require many number of collisions which makes the possibility of lasting it for more than 10 billion years.

The nuclear fusion in the sun can be explained in the following steps.

1. Two protons combine to form a deuterium ( hydrogen atom with one with neutron ), a positron ( similar to electron, but positvely charged ) and a neutrino.

2. A proton and a deuterium atom combine to form a helium-3 atom ( two protons with one neutron ) and gamma ray.

3. Two helium-3 atoms combine to form a helium-4 ( two protons and two neutrons ) and two protons.

In the above said three steps of reaction helium-4 atoms are less massive than the two hydrogen or protons started in the process. The loss of mass is hence converted to heat and light energy according to Einstein's law E = mc^2

ozone layer protects our earth from radiations

The solar energy is emitted in variety of light such as ultra violet light, X-rays, visible light,infrared, micro waves and radio waves. The total energy emitted from the sun strikes the earth and makes it warm to have all living beings. Our earth atmosphere ( ozone layer ) protects us from ultra-violet radiations.


Submit a Comment

This website uses cookies

As a user in the EEA, your approval is needed on a few things. To provide a better website experience, uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at:

Show Details
HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
LoginThis is necessary to sign in to the HubPages Service.
Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
AkismetThis is used to detect comment spam. (Privacy Policy)
HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the or domains, for performance and efficiency reasons. (Privacy Policy)
Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
MavenThis supports the Maven widget and search functionality. (Privacy Policy)
Google AdSenseThis is an ad network. (Privacy Policy)
Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
Index ExchangeThis is an ad network. (Privacy Policy)
SovrnThis is an ad network. (Privacy Policy)
Facebook AdsThis is an ad network. (Privacy Policy)
Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
AppNexusThis is an ad network. (Privacy Policy)
OpenxThis is an ad network. (Privacy Policy)
Rubicon ProjectThis is an ad network. (Privacy Policy)
TripleLiftThis is an ad network. (Privacy Policy)
Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)