Don't lie on your CV.

[mudskipper]

This is so cool - I really want to believe...

Man Claims to Fly With Custom-Built Bird Wings | Wired Science | Wired.com

but

Bird-Man's Resume Doesn't Check Out: 'Nobody Knows Him' | Wired Science | Wired.com

He lied on his CV, so apparently he must be a fake. Boo.

[TimberWolf]

Well from what I see the physics doesn't add up.

To stay up he needs, on average, this is a flapping motion after all, to supply a force equal to his (+ machine) weight. At first I was dubious that the puny human pectoral muscles could provide say 100kg of force continually (had visions of those gymnasts that can perform a human cross), but apparently he says he uses motors controlled by a Wii.

So the wing area is given as 15 m^2 (1.) and with that he needs to transfer enough momentum per second to the air to equal his weight. Just guessing looking at the clip, it's say one wing beat a second and that works out at 18.75 N, compared to the circa 1000N needed to stay up. Not even close, his wing is way too small for hu-mans.

Fake.

1. Technology News: Technology: Birdman Takes to the Sky on a Wing and a Wii

[petergriffin]

He must have taken advice from Cojak.

[TimberWolf]

Well from what I see the physics doesn't add up.

To stay up he needs, on average, this is a flapping motion after all, to supply a force equal to his (+ machine) weight. At first I was dubious that the puny human pectoral muscles could provide say 100kg of force continually (had visions of those gymnasts that can perform a human cross), but apparently he says he uses motors controlled by a Wii.

So the wing area is given as 15 m^2 (1.) and with that he needs to transfer enough momentum per second to the air to equal his weight. Just guessing looking at the clip, it's say one wing beat a second and that works out at 18.75 N, compared to the circa 1000N needed to stay up. Not even close, his wing is way too small for hu-mans.

Fake.

1. Technology News: Technology: Birdman Takes to the Sky on a Wing and a Wii

Which on reflection may be a bit harsh considering not many birds can hover or take off vertically either.

It turns out that a simple formula relates most winged things, whether they be flapping or fixed, insect or 747:

0.3 * airDensity * V^2 * surfaceArea = weight (Mg)

Which for a 15 m^2 surface area equates to a horizontal speed of 13 m/s, or 48 km/h. Still fake. I imagine one could stay up for quite a while with a wing of that size once airborne and up to speed though.

http://mitpress.mit.edu/books/chapte...13137chap1.pdf

[AtW]

Which on reflection may be a bit harsh considering not many birds can hover or take off vertically either.

It turns out that a simple formula relates most winged things, whether they be flapping or fixed, insect or 747:

0.3 * airDensity * V^2 * surfaceArea = weight (Mg)

Which for a 15 m^2 surface area equates to a horizontal speed of 13 m/s, or 48 km/h. Still fake. I imagine he could stay up for quite a while with a wing of that size once airborne and up to speed though.

http://mitpress.mit.edu/books/chapte...13137chap1.pdf

You sad git. Stick to economics.

[TimberWolf]

You sad git. Stick to economics.

Yeah, you can't go wrong with economics.

[suityou01]

I don't recognise his mother tongue but I think I recognise some words at the end of that clip.

[OwlHoot]

Well from what I see the physics doesn't add up.

To stay up he needs, on average, this is a flapping motion after all, to supply a force equal to his (+ machine) weight. At first I was dubious that the puny human pectoral muscles could provide say 100kg of force continually (had visions of those gymnasts that can perform a human cross), but apparently he says he uses motors controlled by a Wii.

So the wing area is given as 15 m^2 (1.) and with that he needs to transfer enough momentum per second to the air to equal his weight. Just guessing looking at the clip, it's say one wing beat a second and that works out at 18.75 N, compared to the circa 1000N needed to stay up. Not even close, his wing is way too small for hu-mans. ...

[MarillionFan]

Which on reflection may be a bit harsh considering not many birds can hover or take off vertically either.

It turns out that a simple formula relates most winged things, whether they be flapping or fixed, insect or 747:

0.3 * airDensity * V^2 * surfaceArea = weight (Mg)

Which for a 15 m^2 surface area equates to a horizontal speed of 13 m/s, or 48 km/h. Still fake. I imagine one could stay up for quite a while with a wing of that size once airborne and up to speed though.

http://mitpress.mit.edu/books/chapte...13137chap1.pdf

God, I'd hate to get stuck in a lift with you.

[Churchill]

God, I'd hate to get stuck in a lift with you.

Why? You're the fat bastard. He'd be scared stiff you were hungry!