Make-up air is designed to “make up” the air in your interior space that has been removed due to process exhaust fans. This type of HVAC solution pulls in fresh, tempered air from outside your building to replace existing air that cannot be recirculated. ...
The troposphere, the bottommost layer of Earth’s atmosphere, is the densest of the five atmospheric layers and extends from ground level up to about 10 kilometers in altitude. This is the layer where humans live and breathe, as it contains the air we depend on for survival. The tropospher...
That's why most of the "metals" we use are not actually metals at all but alloys: metals combined with other substances to make them stronger, harder, lighter, or better in some other way. Alloys are everywhere around us—from the fillings in our teeth and the alloy wheels on our cars...
nouns, or mass nouns, are nouns that are impossible to count, whether because they name intangible concepts (information, animal husbandry, wealth), collections of things that are considered as wholes (jewelry, equipment, the working class), or homogeneous physical substances (milk, sand, air)....
They were, the scientists guessed, using the insects to medicate. "What we think Is that maybe they're mixing it with their saliva(唾液)and pressing something out of the insect", said Simone Pika, from the University of Osnabruck, in Germany. There are some substances that might have anti...
She turned up at the doorstep of my house in Cornwall.No way could I have sent her away.No way,not me anyway.Maybe someone had kicked her out of their car the night before."We're moving house.""No space for her any more with the baby coming.""We never really wanted her,but wha...
Eye infections are either bacterial, fungal, or viral. Anytime dirty or unsanitised substances enter the eye, a potential eye infection can occur. Bad hand hygiene whilst wearing contact lenses can also lead to eye infections. Can Covid start with eye infection?
Any process that contains a flow of events, from air temperatures in a crowded room to the manufacture of aninjection molded plasticpart, can be simulated and tested visually. Simulations can be used to optimize a design, test a theory, train or improve safety, and even entertain. If you’...
With generative design, innovative engineers can make flights more sustainable. Consumer goods Generative design is disrupting product development in the consumer goods industry. Forward-thinking companies can create multiple options that achieve a balance of weight, comfort, durability, and performance. ...
You might have to take out any powdered makeup for extra screening The TSA powder rule states: “Powder-like substances greater than 12 oz. / 350 mL must be placed in a separate bin for X-ray screening. They may require additional screening and containers may need to be opened.” ...