Question

do you blow to keep a fire going


​

Answer 1

Answer:

$\underline{\sf\large\blue{QuésTion:-}}$

What are your ways of turning your inactive routine into physically active?

$\underline{\sf\large\blue{Answer:-}}$

Here are some ways to incorporate physical activity into your daily routine:-

Take the stairs. You've probably heard this one before but taking the stairs is a great way to add movement to your day and increase your heart rate. ...

Take a walk. ...

Wake up and work out. ...

Wear a pedometer. ...

Add movement to housework.

Answer 2

Answer:

Even the ancients realized that blowing on a fire increased the fire intensity or even rekindle glowing embers. In fact, early metal workers developed bellows to increase fire temperature in order to melt metals, so what’s going on here? Most fires involve oxidation of fuel that is typically a carbon-containing compound or even pure carbon; coal. The most efficient, or clean combustion, requires adequate oxygen. But air is only about 1/5 th oxygen and the main component, nitrogen, just gets in the way. Hot flames can be produced by using pure oxygen in a torch apparatus, but that’s overkill in most situations. Blowing on a fire increases the availability of oxygen and helps remove combustion products like carbon dioxide, but our breath contains water vapor and some carbon dioxide which is counterproductive for our fire. That’s why “blowing” devices like bellows were invented. Blow pipes are still used however. But the blowing principle can be made automatic in stoves, fireplaces and furnaces. The chimney is typically designed to produce a draft, or upward flow of heated air to aid burning by pulling in air over the fire. Abd the classic sound made by steam engines comes from a mechanical “blowing” contrivance that forces air over and through the burning coals. While human blowing on fire may not be as useful as mechanical means, blowing on embers or other smoldering combustibles is useful and often part of fire starting methods.