Thread: I've always wondered.

NOt if it has grooves like a record , in this case instead of going to the centre, the people end up in cities.

Originally Posted by V8Ian

Thank goodness that doesn't happen with farts!

Amen to that Brother.

Originally Posted by trog

NOt if it has grooves like a record , in this case instead of going to the centre, the people end up in cities.

So, depending on the size of the earth, you could have 8 cities and an outer suburb or 16 cities or 33 cities with a few more outer suburbs or 45 cities or 78 cities. It would depend on the earth's rotational speed.

So if the earth was flat,what would birds do,turn around and come back or keep going?

Can birds fly upside down?

Can a bird fly without down?

Originally Posted by DiscoMick

Can birds fly upside down?

A bird’s wing feathers are mounted like slats on a venetian blind. They only lock together to form a solid aerofoil against airflow from below. If they fly upside down, the feathers rotate open and let the air through. But geese do use a manoeuvre called ‘whiffling’ where they roll their body upside down and twist their neck to keep their head the right way up. This lets them rapidly lose speed and height for a fast landing.
The only bird that can fly backward is the hummingbird. Hummingbirds have a special ball-in-joint shoulder socket that enables them to fly backwards, upside down and upright because it can be rotated 180 degrees. Hummingbirds hover by moving their wings in a figure-eight pattern.

Originally Posted by scarry

So if the earth was flat,what would birds do,turn around and come back or keep going?

I suppose that would depend if you had showed them a good time or not.

The only bird that can fly backward is the hummingbird. Hummingbirds have a special ball-in-joint shoulder socket that enables them to fly backwards, upside down and upright because it can be rotated 180 degrees. Hummingbirds hover by moving their wings in a figure-eight pattern.

Something the aviation manufacturing world could look at as well.

An A380 doing that? I'd like to see that.