To make this site work properly, we sometimes place small data files called cookies on your device. Most big websites do this too.
A cookie is a small text file that a website saves on your computer or mobile device when you visit the site. It enables the website to remember your actions and preferences (such as login, language, font size and other display preferences) over a period of time, so you donât have to keep re-entering them whenever you come back to the site or browse from one page to another.
This is how we use cookies on this site:
Also, some videos embedded in our pages use a cookie to anonymously gather statistics on how you got there and what videos you visited.
Enabling these cookies is not strictly necessary for the website to work but it will provide you with a better browsing experience. You can delete or block these cookies, but if you do that some features of this site may not work as intended.
The cookie-related information is not used to identify you personally and the pattern data is fully under our control. These cookies are not used for any purpose other than those described here.
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You can control and/or delete cookies as you wish â for details, see aboutcookies.org. You can delete all cookies that are already on your computer and you can set most browsers to prevent them from being placed. If you do this, however, you may have to manually adjust some preferences every time you visit a site and some services and functionalities may not work.
You can delete cookies already stored on your computer; for example:
(a) in Internet Explorer (version 11), you must manually delete cookie files (you can find instructions for doing so at:Â Â http://windows.microsoft.com/en-gb/internet-explorer/delete-manage-cookies#ie=ie-11);
(b)Â Â Â in Firefox (version 47), you can delete cookies by clicking âToolsâ, âOptionsâ and âPrivacyâ, then selecting âUse custom settings for historyâ from the drop-down menu, clicking âShow Cookiesâ, and then clicking âRemove All Cookiesâ; and
(c)Â Â Â in Chrome (version 52), you can delete all cookies by accessing the âCustomise and controlâ menu, and clicking âSettingsâ, âShow advanced settingsâ and âClear browsing dataâ, and then selecting âCookies and other site and plug-in dataâ before clicking âClear browsing dataâ.
7.2Â Â Â Deleting cookies will have a negative impact on the usability of many websites.