EntityQ5182390· pop 8· linked from 196 articlescrash barSign in to savedevice that allows opening a door by pushing against itConnectionscrowd collapses and crushesEntityfire alarm systemEntityemergency exitEntityUnited StatesCountryChicagoEntityScotlandEntityInternational Standard Book NumberEntitydoorEntitySARS-CoV-2EntitypressureEntityexplosive chemicalsEntityThe GuardianEntityconstructionEntityconflagrationEntitylockEntitypasswordEntitySunderlandEntityheat transferEntityfire extinguisherEntitythermal radiationEntityCategoriesDoor furnitureEmergency managementFire protection