upward ventilation
21Solar energy — is the light and radiant heat from the Sun that powers Earth s climate and weather and sustains life. Since ancient times it has been harnessed for human use through a range of technologies. Solar radiation along with secondary solar resources… …
22Cardiopulmonary resuscitation — CPR redirects here. For other uses, see CPR (disambiguation). Cardiopulmonary resuscitation Intervention CPR being performed on a mannequin ICD 9 …
23Mining — This article is about the extraction of geological materials from the Earth. For the municipality in Austria, see Mining, Austria. For the siege tactic, see Mining (military). For name of the Chinese emperor, see Daoguang Emperor. Simplified… …
24Glaspaleis — Infobox Modern building caption=The present Glaspaleis as seen from the market square ( Bongerd ). name=Glaspaleis location town=Heerlen location country=The Netherlands architect=Frits Peutz client=Peter Schunck Schunck construction start… …
25Subcutaneous emphysema — Classification and external resources An abdominal CT scan of a patient with subcutaneous emphysema (arrows) ICD 10 T …
26Hemoglobin — Hemoglobin, human, adult (heterotetramer, (αβ)2) Structure of human hemoglobin. The protein s α and β subunits are in red and blue, and the iron containing heme groups in green. Fro …
27Liberty Tunnel — Infobox Bridge bridge name= Liberty Tunnels caption= Traffic flowing through the Liberty Tunnels official name= also known as= Liberty Tubes carries= 4 lanes of roadway crosses= locale= Pittsburgh, Pennsylvania;Mt. Washnigton maint= id= design=… …
28Building insulation — refers broadly to any object in a building used as insulation for any purpose. Whilst the majority of insulation in buildings is for thermal purposes, the term also applies to acoustic insulation, fire insulation, and impact insulation. Often an… …
29Buick Electra — 1977 Buick Electra coupe Manufacturer General Motors Also called Buick Electra 225 Buick Electra 225 Custom Buick Electra 225 Limited Buick Electra Limited Buick Electra Park Avenue …
30Diver rescue — Beaching a casualty while providing artificial respiration Diver rescue, following an accident, is the process of avoiding or limiting further exposure to diving hazards and bringing a SCUBA diver to safety.[1] A safe place is often a place where …
