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2. Electrical contact - Wikipedia

   en.wikipedia.org/wiki/Electrical_contact

   An electrical contact is an electrical circuit component found in electrical switches, relays, connectors and circuit breakers. [1] Each contact is a piece of electrically conductive material, typically metal. When a pair of contacts touch, they can pass an electrical current with a certain contact resistance, dependent on surface structure ...

3. Contact geometry - Wikipedia

   en.wikipedia.org/wiki/Contact_geometry

   In mathematics, contact geometry is the study of a geometric structure on smooth manifolds given by a hyperplane distribution in the tangent bundle satisfying a condition called 'complete non-integrability'. Equivalently, such a distribution may be given (at least locally) as the kernel of a differential one-form, and the non-integrability ...

4. Add, edit or delete contacts in AOL Mail - AOL Help

   help.aol.com/articles/add-edit-or-delete...

   1. From AOL Mail, open an email. 2. Mouse over the sender's name or email address to display the contact card. 3. Click Add a new contact. 4. Enter the contact's info.

5. Get Support-AOL Help

   help.aol.com/contact

   AOL Canada only. Commission for Complaints for Telecom-television Services (CCTS) CCTS is an ... Read more. Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.

6. Contact resistance - Wikipedia

   en.wikipedia.org/wiki/Contact_resistance

   Electrical contact resistance ( ECR, or simply contact resistance) is resistance to the flow of electric current caused by incomplete contact of the surfaces through which the current is flowing, and by films or oxide layers on the contacting surfaces. It occurs at electrical connections such as switches, connectors, breakers, contacts, and ...

7. Disease Transmission: Direct Contact vs. Indirect Contact

   www.healthline.com/health/disease-transmission

   Types of direct contact include the following. 1. Person-to-person contact. Infectious diseases are commonly transmitted through direct person-to-person contact. Transmission occurs when a person ...