Practical physics fail
There was going to be much doing of stuff yesterday. Unfortunately due to an incident fairly early in the piece involving my complete failure at practical physics, there was not much doing of stuff.
Public service physics lesson
Say you have a small hand trolley (small flat bit at the bottom, two wheels, tall upright bit - you put stuff on the flat bit, lean it back and wheel it around). Say the default position of the unladen hand trolley is that it leans back a bit, maybe 10-15%. If you were to drop a 30L bag of potting mix onto the base plate of the trolley, this will exert a downward force on the plate and also bring the upright part of the trolley forward with the same force. It is strongly recommended not to be bending over the trolley with your head in the path of the accelerating upright section when you drop the load onto the base plate, especially if you drop it somewhat unexpectedly because the bag is wet and you lose your grip.
*sigh* I received a lovely lump (which is now a lovely bruise) just above my left eye, much initial pain followed by a thumping headache and feeling like a right idiot for the rest of the day. My head is feeling a bit tender today and my neck seems to have tensed up in sympathy and is being resistant to stretching.
It did rain for much of yesterday so I felt slightly less cheated out of working on the garden as it would have been too soggy anyway. But I could have done without the headache.
Public service physics lesson
Say you have a small hand trolley (small flat bit at the bottom, two wheels, tall upright bit - you put stuff on the flat bit, lean it back and wheel it around). Say the default position of the unladen hand trolley is that it leans back a bit, maybe 10-15%. If you were to drop a 30L bag of potting mix onto the base plate of the trolley, this will exert a downward force on the plate and also bring the upright part of the trolley forward with the same force. It is strongly recommended not to be bending over the trolley with your head in the path of the accelerating upright section when you drop the load onto the base plate, especially if you drop it somewhat unexpectedly because the bag is wet and you lose your grip.
*sigh* I received a lovely lump (which is now a lovely bruise) just above my left eye, much initial pain followed by a thumping headache and feeling like a right idiot for the rest of the day. My head is feeling a bit tender today and my neck seems to have tensed up in sympathy and is being resistant to stretching.
It did rain for much of yesterday so I felt slightly less cheated out of working on the garden as it would have been too soggy anyway. But I could have done without the headache.