Dangling 2 by _inbetween_
There was nothing else they could do. They'd tried reaching Beckett with sturdy branches, they'd tried climbing down, tried forming a human ladder, anything, but the cliff was too treacherous and steep, it crumbled away and the doctor was just too far below them. They had no tools, no rope, nothing except the clothes on their back, and if they tried using them for hang-gliding down, as a certain desperate scientist had so ingeniously (in his opinion) and hazardously (in everybody else's) suggested, they'd only smash themselves to pieces trying to pry Beckett from the ledge onto which he clung.
It was a last ditch effort. McKay could be very convincing, and the situation was desperate. Fortunately for the dangling doctor, neither of the other team members had studied Physics, and with his own credentials firmly in place McKay had Ford and Teyla out of their clothes and jumping off the cliff in under five minutes.
Beckett's mouth dropped wide open as he saw his team mates float past him in their birthday suits. As his fingers slipped from the crumbling ledge and he tumbled after them, he even forgot to blink. Not-a-fly buzzed into his mouth and he absentmindedly swallowed it, staring at the strained grin of a very nude McKay, trying not to stare at any other bits. He forgot the ground approaching at a rapid pace. He also forgot that he couldn't fly and therefore managed to completely miss said ground.
The argument over whether this rescue was a stroke of genius, completely insane or plain impossible would continue for weeks.
***
ETA: I really am sorry. Don't hit me. It had to be done. As usual, let me know any off-sounding turns of phrase I use. The concept is of course from Douglas Adams.
Further ETA: McKay can't wait to publish his treatise on the subject. He has yet to decide whether to focus on the Literature, Physics or Metaphysical angle, or if he could found a whole new field of his own, something that surely would be beneficial for humanity. He's currently considering titles, "How to Fly in the Pegasus Galaxy (Without the Help Of certain people with randomn gene deficiencies Major Sheppard)" not having the right ring to it.
Hopefully-final-ETA: And here's how this all might have started. Includes links for the uninitiated.
Warning: keeps being edited.