lightening and boat materials

Aluminum is used with stainless steel copper fiberglass timber and carbon fiber in the construction of boats. I am going to talk about carbon fiber this material has an electrical conductivity 10 times better than aluminum. When using laminates of dissimilar materials special mechanical bonding must be used as the heat transfer is totally different and so is the expansion rates when heated. I have seen where an electric motor was made with internal chemical bonds holding on the permanent magnets failed in a explosion and a total loss of the motors, The people were warned and the motors failed because of this difference in expansion where as mechanical bonding would have made the motors survive. There was a helicopter crash in the North sea caused by a lightening strike and the cause was related to de-lamination of the tail rotor due to the heat and the chemical bond between the leading edge made of aluminum and the carbon fiber blades.  Same goes for the rigging wires on a sailing boat made from stainless steel and attached to carbon fiber boat. Good engineered mechanical bonding is a must. now if you throw in the heat generated during an electrical lightening strike the bond needs to be stronger. Where is this going I'm not sure as I intend to use the drug sub in storm conditions and staying over night. There seems to be a hypothetical danger there and how do you design a system to deal with this in a once in a life time lightening event. I know that all lightening devices fitted to a boat must run down the outside of the Fiber glass hull as the lightening could blow a hole right threw the hull if it were contained with in the hull. Carbon fiber strips could be placed in in the hull during manufacture in the outside layers of the laminate so when the lightening left the hull it would only damage the outer layers of the composite. These are only thoughts and more research needs to be done in this area.

Arsnic and fireworks WHAT GOES UP MUST COME DOWN

  Its amazing that the governments from around the world can use so much poison to celebrate the new year. Boy do I pay for it with severe pains in the chest around this time of the year. Its no wonder that birds are dying by the thousands this year. How do you stop the infidels. If we used these chemicals on the land for food production we would be attacked by the greenies and put out of business. I live south of Sydney and the predominant winds blow the gasses and the minute particles south and they settle here. Are you in a fallout area?


Arsenic Sulfide, Red
The common name is Realgar and it is also known as Red Arsenic. Purchase the technical grade, which is available as a poisonous orange-red powder. It is used in fireworks to impart color to the flame.
Arsenic Sulfide,Yellow As2S3 This Chemical is just as poisonous as its red brother and is also used in fireworks, somewhat. The common name is Kings Gold.
Arsenious Oxide As4O6
A white, highly poisonous powder used in fireworks. It is also known as Arsenic Trioxide, Arsenious Oxide and Arsenous Acid. Its uses are similar to Paris Green.

stolen from

http://houseboatshantyboatbuilders.wordpress.com/2010/11/11/words-to-live-by/
 Shamelessly stolen from Boat Bits who undoubtedly ripped it off from some other location but certainly words to live by.

lightening strikes on small boats

I have had to seriously look at lightening strikes as they can be fatal. Having been struck by lightening I do not want to put myself in to that position again. Some sort of protection is needed. Maybe placing a heavy cable in the boat attached to the metal roof and sending it to the water on the outside of the hull. Does any one have any suggestions? Also do I attach the cables to the motor and bow rails as well.

Rice bubbles

I was trying to find out how to make rice bubbles and they are unheard of in other parts of the world so here they are. They are eaten with milk, as children we were given them dipped in warm chocolate and put paddy papers and put into the refrigerator to set and they are called chocolate crackles. They crackle when you eat them. When the milk is pored on they make the sound of snap crackle and pop. They are advertised with the little figures Snap Crackle and Pop who sing and dance you can see them in the last photo of the box they come in. Kellogg's also give eating and serving tips on the back of the packet.

How to make things

If you take on a project break it into small jobs. It takes about 360 parts to make a steam locomotive. If you make one piece a day it will take one year. Some parts take longer like the boiler and this could take several months but even this is broken into it small parts and then there is the assembly of the boiler so this is about 6 months in total. So to make a steam locomotive it takes about 18 months. Smaller jobs take less time making one part every day till the job is finished and you will achieve things. TV takes the place of one part every day you watch it.  You will notice that sometimes I get waylaid when looking for materials and this slows the original job. Set a list of ten things for the next days work and number these in order of importance and work the list. The next day put the remaining things on the next list and add some more to have ten and then work on these the following day. Works for me.