#include<iostream> #include<string> size_t count_spaces(std::string& str) { size_t spaces=0; for(size_t i=0; i<str.size(); ++i) if( str[i]==32 ) ++spaces; return( spaces ); } int main() { std::string str("This is a string with some spaces."); size_t spaces = count_spaces(str); std::cout<<"The string ""<<str.c_str()<<"" has "<<spaces<<" spaces.\n"<<std::endl; }
No, the m50 mask is not the most effective in confined spaces where there is not enough oxygen in the air to breathe to support life.
In order to maintain good air quality you need return air ducts for the furnace. The return air intakes also help balance the temperature differential in the room, return air also helps maintain a safe temperature for the heat-exchangers with out the return air helping reduce the temperature around the heat-exchangers thermal overloads would trip out and shut down the furnace and the danger of rupturing the heat exchanger which would allow combustion exhaust and carbon monoxide entering in to and mixing with the supply air making a deadly situation for the occupant's.
themperature of out door air plus temperature of return air [furanace]
It fills in spaces where air can penetrate and your conditioned air can escape. It is also great for keeping insects from entering your home.
The spongy layer or mesophyll has many air spaces.
vesicular
Emphysema is the irreversible enlargement of the air spaces in the lungs.
Not necessarily. Scoria and pumice are forms of volcanic glass that contain air spaces, while obsidian, another volcanic glass, contains minimal air spaces if any.
a rock that is full of tiny, connected air spaces is PERMEABLE
The answer is bones. Bones are filled with marrow and have air spaces to make them lighter in weight.
You will hear air circulating in the cold air return (or return air grille) when the heater or air conditioner is running.
Alveoli are grape-like air spaces at the distal ends of the bronchial upside-down tree.
Trap plenty of air in the air spaces
Farts
pore space
Inside of vacuums, there is no air. In these spaces, you can create an environment, where there is little/no air resistance.