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2. zSpace (company) - Wikipedia

   en.wikipedia.org/wiki/ZSpace_(company)

   zSpace is a technology firm based in San Jose, California that combines elements of virtual and augmented reality in a computer. zSpace mostly provides AR/VR technology to the education market. [1] It allows teachers and learners to interact with simulated objects in virtual environments .

3. Central vacuum cleaner - Wikipedia

   en.wikipedia.org/wiki/Central_vacuum_cleaner

   Central vacuum cleaner. Central vacuum installed with an air inlet. Antique central vacuum inlet located in a dining room at Château Dufresne ( Canadian Register of Historic Places, c. 1918) Typical central vacuum cleaner power unit for residential use (North America) A central vacuum cleaner (also known as built-in or ducted) is a type of ...

4. Z Space - Wikipedia

   en.wikipedia.org/wiki/Z_Space

   Z Space is a regional theater and performing arts company located in the Mission District of San Francisco, California. Z Space is one of the leading laboratories for developing new voices, new works, and new opportunities in the American theater. In addition to commissioning and producing its own works, Z Space also presents productions ...

5. Outer space - Wikipedia

   en.wikipedia.org/wiki/Outer_space

   The boundary between space and Earth, at an altitude of 100 km, roughly where the yellow line of airglow is visible. Outer space (or simply space) is the expanse beyond celestial bodies and their atmospheres. It contains ultra-low levels of particle densities, constituting a near-perfect vacuum [1] of predominantly hydrogen and helium plasma ...

6. Central vacuum system - Wikipedia

   en.wikipedia.org/?title=Central_vacuum_system&...

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7. Blackhead Vacuum: How to Use, Benefits, Risks, More - Healthline

   www.healthline.com/.../blackhead-vacuum

   Position the circular nozzle tip directly on the blackhead. Turn on the vacuum. Slide it slowly over the blackhead and surrounding area for a few seconds. Repeat up to three times. “Stop after a ...