Photos by daithi

A graph of increase in reaction time with increase in the ratio of slack to horizontal distance R.

Here is a graph of the trajectory of an idealised pendulum and the elastic pendulum at R = 1.

Shown are the results of the original model and the updated model with an elastic pendulum. The data has been normalised wrt the impact velocity of an idealised pendulum.

Here is a schematic for an elastic pendulum used to estimate impact velocity at the wall.

The length of the rope from the last runner is R (which has been normalised wrt horizontal distance). h is the vertical distance the climber falls before the rope gets tight. The velocity measured is the impact velocity at the wall.

Variation of impact velocity (normalised wrt the impact velocity of a simple pendulum) plotted against length of rope out from last runner R (normalised wrt horizontal distance).

Just beneath the crux of relax. The crux is going over the bulge on small, hard to find, crimpers to a good pocket above the bulge.

daithi high above the valley on a beautiful December day in Monte Bracco.

Clip, rest, shake out and examine the next few moves over the bulge.

This is a picture I took of my mate Damien on the summit of Ben Nevis. He looks cold doesn't he? :-)

My mate Stevie hangs on tight on Stac Polleidh in the Scottish Highlands!

This is me and my mate Scott on our first climb of the day attempting to warm up on a very cold morning in Nago, Italy. It's never much fun when you can't feel your fingers!

This is Enrico belayed by Cormac on Jurassic Shift, a stunning 30m sports route with an exposed finish over a roof!

The crux of this route was right off the deck, which at the time was at my limit. I fell clipping the second bolt. My belayer was standing a bit back and I fell on the rope between my arm and body. This was my souvenir! Stung like crazy but thankfully us sports climbers are made of stern stuff ;-)

Load vs. extension graph for a kernmantle rope.

daithi posing on the finishing jug of the one move boulder problem "T-34", 10 seconds before the Ukrainian police arrest him for desecrating a war memorial.

daithi dynos and reaches the 85mm finishing jug on the very reach dependent boulder problem "T-34".

A solitary daithi tying-in and waiting for a belay. Stop taking pictures and let’s climb!

Here I am resting between climbs and watching my friends climb.

daithi wondering if he has a good long run up, can he make the lake if he jumps. With his knowledge of aerodynamics he determines he will have to keep his arms outstretched to provide some lift if he is to make it. Like R. Kelly I believe I can fly.

daithi on some 6a in Nago in Italy. I remember being freezing this morning and the rock was so cold. I had no feeling in my fingers whatsoever!

On a day off from climbing in Italy. Did some hiking instead. Not my idea of a rest day I must confess. Here we are taking a rest as we walked back down through a village. Real Italian icecream is amazing! Yum yum! From left to right: Philipp, Dave, Scott, daithi (pulling a stupid face - whenever a camera is pointed at me I have the compulsion to start making faces!) and Enrico. Christoph is behind the camera.

This is where we head to after a tough days climbing for a nice cold well-earned pint of Guinness. Hmmm....

Enrico and daithi consulting the guidebook to find the "easy scramble" to the base of the cliff. He tends to get lost fairly easily and never listens to my directions :-) I am on the left BTW

daithi on the amazing rock of Massone in Arco. Unfortuntely his climbing was not quite as amazing.

This is a pic of Stac Pollaidh in the Scottish highlands. Well worth visiting the Highlands if you get a chance.

This is my mate Enrico climbing The Price of Silence 6a as a warm up. I am giving him a quality belay as always :-)

6b. The crux is the last move going over the roof. This is when I temporarily had blond hair! Didn't help me climb any harder though

This is me on Stac Pollaidh in the Scottish highlands

This is a 6a climb in Nago that I can't remember the name of. I am just about the pull over the roof. A lovely climb with easy moves the whole way up.

Just cleared the crux, which is the two small roofs lower down. Above this is just sustained pleasure following a lovely crack

Here is my profile pic of me belaying taken during the summer of 2005.

This is me lowering off a climb in Massone.