I have a 'stubby' -that's a 2 " long screwdriver, and I have 2 right angled screwdrivers, the points are at 90 deg for an inch off the main shaft.
You can get a back water valve. It is similar to a check vale/ the back water valve goes on your main sewer line out side of home. It is desined to stop black water form coming into your home if main line stops up. Thay do make a device that can be installed into an exsisting drain it lets water through your drain but will not let water back up through you shower drain.
Robots are a unique invention of human. It is although quite similar to the computer but the Robot can be made much more powerfull and intelligent than a computer. Today in 2009 Android and humanoid Robots are being desined by Japan and America but It is true that today they are not as good and active as human. Because they are slow in speed and have low power of thinking and are limited to make decisions. If we implement the brain of human in a program same as the human. Such as the basic parts and activities of our brain. like P.E.A (Prefrontal Esociation Area) of the human brain is still dark for a robot or even a computer program. PEA defines the thought that how we decide any thing. e.g some one see an Apple, the brain first capture the picture of the apple then it convert this picture into outlines and also into pieces. these pieces of the pictures are matched by the previous memory of the brain and also that outlines of the picture. then as how many no of pieces of the pictures are matched and found in the brain. they are collected and send to the PEA of the brain and that collection of data in the brain also include the name,colour,shape,size,smell,taste,even the weight of that apple is send to the PEA of brain and it defines us and patternise and help to recognize all that data.so we recognize an apple. If we implement this thought to a program of robot then robot will become more artificially intelligent. Recently i am also working in the same task. Soon i will be successful in this aim. If this will be done then a Robot will be much more powerfull than a human. And also soon we all will become the slave of these Robots. although it is very usefull that a Robot should be intelligent than human but it has drawbacks and disadvantages. But what we do not have to leave faults on those Robots and they all should be controlable. But as i said the first thing to make robots more intelligent is to make their brain and thoughts like us. I know one day a Robot will be having a dream on his mind like humans. this will become true soon with in ten years. The thinking fact is that what and how we are doing any thing. If we all observe ourselves and try to understand our brain then we can do it. Some how we also do every thing like a computer program. what if i lost my all senses i will just become a robot except that i have dreams. we also have multiple instructions and choices on each step of our life we use senses and compare all that choices with them. this is the activity if our brain. we are also program by someone so called a GOD. So, we are the best creature of GOD and what we do now. If we make some AI Robots then soon they will also start to destroy the world like us.
bobie boneed desined it
gfg
Imhotep.
in 1913
Carolina Herrara
Shigefumi Hino desined and created Yoshi
na na go go
Donald Duck and the crew.
billy-bob joe from mexico!
Armoured vehicles and fortifications
the si is desined to take photos on the camera and it has wi-fi
it is .... a system that includes the kidneys,blader and the rectum.It is desined to get rid of waste.