Sailor, author, raconteur
£3.99
A Question of Datum – GPS aided and abetted by the chart plotter fixes our position to the nearest metre – or does it?
This article is free with Membership. If you are signed up, go to your account and log in to receive it foc. Please don’t click here, or you will be charged.
| Cookie | Duration | Description |
|---|---|---|
| cookielawinfo-checkbox-advertisement | 1 year | Set by the GDPR Cookie Consent plugin, this cookie is used to record the user consent for the cookies in the "Advertisement" category . |
| cookielawinfo-checkbox-analytics | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics". |
| cookielawinfo-checkbox-functional | 11 months | The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". |
| cookielawinfo-checkbox-necessary | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary". |
| cookielawinfo-checkbox-others | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. |
| cookielawinfo-checkbox-performance | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance". |
| PHPSESSID | session | This cookie is native to PHP applications. The cookie is used to store and identify a users' unique session ID for the purpose of managing user session on the website. The cookie is a session cookies and is deleted when all the browser windows are closed. |
| viewed_cookie_policy | 11 months | The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data. |
| _GRECAPTCHA | 5 months 27 days | This cookie is set by Google. In addition to certain standard Google cookies, reCAPTCHA sets a necessary cookie (_GRECAPTCHA) when executed for the purpose of providing its risk analysis. |
| Cookie | Duration | Description |
|---|---|---|
| mailchimp_landing_site | 1 month | The cookie is set by MailChimp to record which page the user first visited. |
| Cookie | Duration | Description |
|---|---|---|
| CONSENT | 16 years 3 months 20 days 14 hours 13 minutes | These cookies are set via embedded youtube-videos. They register anonymous statistical data on for example how many times the video is displayed and what settings are used for playback.No sensitive data is collected unless you log in to your google account, in that case your choices are linked with your account, for example if you click “like” on a video. |
| tk_lr | 1 year | The tk_lr is a referral cookie set by the JetPack plugin on sites using WooCommerce, which analyzes referrer behaviour for Jetpack. |
| tk_or | 5 years | The tk_or is a referral cookie set by the JetPack plugin on sites using WooCommerce, which analyzes referrer behaviour for Jetpack. |
| tk_r3d | 3 days | JetPack installs this cookie to collect internal metrics for user activity and in turn improve user experience. |
| vuid | 2 years | Vimeo installs this cookie to collect tracking information by setting a unique ID to embed videos to the website. |
| _ga | 2 years | The _ga cookie, installed by Google Analytics, calculates visitor, session and campaign data and also keeps track of site usage for the site's analytics report. The cookie stores information anonymously and assigns a randomly generated number to recognize unique visitors. |
| _gat_gtag_UA_63360177_24 | 1 minute | This cookie is set by Google and is used to distinguish users. |
| _ga_L06MLFNWFZ | 2 years | This cookie is installed by Google Analytics. |
| _gid | 1 day | Installed by Google Analytics, _gid cookie stores information on how visitors use a website, while also creating an analytics report of the website's performance. Some of the data that are collected include the number of visitors, their source, and the pages they visit anonymously. |
| Cookie | Duration | Description |
|---|---|---|
| ANONCHK | 10 minutes | The ANONCHK cookie, set by Bing, is used to store a user's session ID and also verify the clicks from ads on the Bing search engine. The cookie helps in reporting and personalization as well. |
| fr | 3 months | Facebook sets this cookie to show relevant advertisements to users by tracking user behaviour across the web, on sites that have Facebook pixel or Facebook social plugin. |
| IDE | 1 year 24 days | Google DoubleClick IDE cookies are used to store information about how the user uses the website to present them with relevant ads and according to the user profile. |
| MUID | 1 year 24 days | Bing sets this cookie to recognize unique web browsers visiting Microsoft sites. This cookie is used for advertising, site analytics, and other operations. |
| test_cookie | 15 minutes | The test_cookie is set by doubleclick.net and is used to determine if the user's browser supports cookies. |
| VISITOR_INFO1_LIVE | 5 months 27 days | A cookie set by YouTube to measure bandwidth that determines whether the user gets the new or old player interface. |
| YSC | session | YSC cookie is set by Youtube and is used to track the views of embedded videos on Youtube pages. |
| yt-remote-connected-devices | never | YouTube sets this cookie to store the video preferences of the user using embedded YouTube video. |
| yt-remote-device-id | never | YouTube sets this cookie to store the video preferences of the user using embedded YouTube video. |
| _fbp | 3 months | This cookie is set by Facebook to display advertisements when either on Facebook or on a digital platform powered by Facebook advertising, after visiting the website. |
| Cookie | Duration | Description |
|---|---|---|
| CLID | 1 year | No description |
| cookies.js | session | No description available. |
| gjoRktz-dAC | 1 day | No description |
| qfJjlIa | 1 day | No description |
| SM | session | No description available. |
| SRM_B | 1 year 24 days | No description available. |
| tk_ai | 5 years | Gathers information for WordPress by themselves, first party analytics tool about how WP services are used. A collection of internal metrics for user activity, used to improve user experience. |
| tk_qs | 30 minutes | Gathers information for WordPress by themselves, first party analytics tool about how WP services are used. A collection of internal metrics for user activity, used to improve user experience. |
| tk_tc | session | No description available. |
| visited | 1 day | No description available. |
| _clck | 1 year | No description |
| _clsk | 1 day | No description |
