When sun rays shoot through my house from a window, sometimes if the lighting is correct, it will reveal a huge amount of floating particles and dust. Are these particles dangerous to humans if you ...
Normal air consist of oxygen, CO2 and nitrogen, with traces of water etc. Now imagine displacing all gasses except oxygen with water vapour. By water vapour I don't mean hot steam or fog. Just ...
During inhalation, your alveoli expand, creating a pressure difference between the atmosphereic pressure and our lung sacks and therefore air will flow into the repspiratory airways. I am trying to ...
Why we don't use tubes to deal with runny nose when it is very bad? We could for example put a tube that goes through the nostril to the throat so the light of this track won't be blocked completely ...
Do dogs have something different about their physiology that allows them to pant without hyperventilating?
I was wondering this as I considered how effective panting would be for humans as a means of cooling.
I read somewhere (I think it was Bill Bryson's book on the origins of the English language) that of all animals, we are the only ones that can choke on food (having something to do with how our larynx ...