Universal Constants: A New Foundation of Measurement | NIST
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Electromagnetic circuit
This image shows an electromagnet circuit with one 9 volt dry cell.
This image shows an electromagnet circuit with one 9 volt dry cell.
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| Cookie | Duration | Description |
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| Cookie | Duration | Description |
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| 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. |
| Google Ad Support | 6 months | NID cookie, set by Google, is used for advertising purposes; to limit the number of times the user sees an ad, to mute unwanted ads, and to measure the effectiveness of ads. |
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| YouTube Performance | 5 months 27 days | A cookie set by YouTube to measure bandwidth that determines whether the user gets the new or old player interface. |
| YouTube Preferences | never | YouTube sets this cookie to store the video preferences of the user using embedded YouTube video. |
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| YouTube Views Tracking | session | YSC cookie is set by Youtube and is used to track the views of embedded videos on Youtube pages. |
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| Cookie | Duration | Description |
|---|---|---|
| AnalyticsSyncHistory | 1 month | No description |
| AWSALBTG | 7 days | No description available. |
| AWSALBTGCORS | 7 days | No description available. |
| confcache | past | No description |
| debug | never | No description available. |
| embed[bg] | past | No description |
| embed[sidebaroff] | past | No description available. |
| embed[width] | 3 days | No description available. |
| iframe | 3 days | No description available. |
| lastday | 3 days | No description |
| li_gc | 2 years | No description |
| mobileoff | 3 days | No description available. |
| muc_ads | 2 years | No description |
| pageView | 3 days | No description available. |
| pubble_gen_uid | 1 year | No description available. |
| rl_anonymous_id | never | No description available. |
| rl_user_id | never | No description available. |
| SCHEDsession | session | No description |
| view | 3 days | No description available. |