My pleasure-
Irimi Nage- The entering throw
This throw is fairly unique to aikido as an unarmed technique but is fairly common as a killing movement when armed with a spear or using a jo.
The idea is to take up the space that uke had at one time occupied before the offbalancing took place. To do that the footwork dictates that you enter at an angle just off the socalled "line of attack".
If you look closely at the picture you can see the person performing the technique has his hips (whole leg infact) beside and slightly behind uke. Nage does not "clothesline" uke and infact never actually "bashes" the head of the man, instead, the arm and hand (note the hands are extended and aligned with hips, thus using all the muscles of the arm and maintaining balance) spiral from a palm up to palm down position just beside (near the ear) of uke. By attacking the corner rather than the head straight on, nage maintains position and power while at the same time is
moving directly above uke's center giving him full control of his attacker's momentum and balance.
The entry is into the area of stability that uke once occupied allowing nage to always be in control. The problem with techniques such as iriminage are not that they don't work, its that the person performing it must have impecable timing as well as understand the idea of "one entry", if any hesitation occurs, then uke can easliy regain balance and defend against the throw.
This is also a great takedown into a nice choke from a scarfhold or even side mount if practiced to that effect.
Hope that helped.
-bamboo