When.com Web Search

Search results

1. Results From The WOW.Com Content Network

2. Safety barrier - Wikipedia

   en.wikipedia.org/wiki/Safety_barrier

   Hard barriers are fixed into the ground as a bollard or gate, removable on stands, or clipped to a structure. Regardless of the barrier type, the components and overall assembly will be similar. Regardless of the barrier type, the components and overall assembly will be similar.

3. Bollard - Wikipedia

   en.wikipedia.org/wiki/Bollard

   Bollards are used to protect buildings and people in public spaces from car ramming attacks [21] and accidental collisions. Related protections against deliberate attacks are wedge barriers and archer barriers. [22] The bollards are effective protection against deliberate attacks if properly deployed and maintained.

4. Lock (water navigation) - Wikipedia

   en.wikipedia.org/wiki/Lock_(water_navigation)

   A plan and side view of a generic, empty canal lock. A lock chamber separated from the rest of the canal by an upper pair and a lower pair of mitre gates.The gates in each pair close against each other at an 18° angle to approximate an arch against the water pressure on the "upstream" side of the gates when the water level on the "downstream" side is lower.

5. Border barrier - Wikipedia

   en.wikipedia.org/wiki/Border_barrier

   1979, low concrete wall (2.5–3m tall) with barbed wire as part of initial security measures; 2009 Underground steel barrier (10–11 km long, 18m deep) to block smuggling tunnels. 3.1: Anti-terrorism and anti-illegal immigration [26] [27] Estonia–Russia barrier: Estonia and Russia: Estonia: 2018: 110: Anti-intrusion, illegal trade and ...

6. Collar stay - Wikipedia

   en.wikipedia.org/wiki/Collar_stay

   Collar stays can be made from a variety of materials, including metal (such as brass, stainless steel, or sterling silver), horn, baleen, mother of pearl, or plastic. Shirts often come with plastic stays that may eventually need to be replaced if they bend; metal replacements do not have this problem. [2]

7. Glossary of climbing terms - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_climbing_terms

   bollard Snow bollard A large block of rock or ice that is used as an anchor to construct a belay. bolt A point of protection permanently installed in a hole drilled into the rock, to which a metal bolt hanger is attached, with a hole to attach a carabiner or a quickdraw; used in sport climbing and in competition climbing. [1] [2] bolt chopping