what are brick lintels?
613435
A lintol or lintel is a means of supporting something above.\nA window opening or door opening for example within a brick wall will have some means of supporting the brickwork above the opening.\nLintols could be made out of timber, steel, concrete or bricks. However where the timber, steel or concrete lintols\nwould mostly be made in one piece and generally be horizontal, a brick lintol would have to be constructed in an arch form and with a temporary support (formwork or falsework) and with a "key" brick placed at the top of the arch similar to what you might see in an old stone arch which would have the "key"stone almost wedge shape.
192296
This is basically correct.  You will find the "stars" on older brick homes.  There is a rod or rods that run through the house essentially to hold it together.  The star on the outside is a decorative way to hide the end of the rod and to provide the anchor points.
359090
They were probably invented sometime during the Iron Age. I.e. at a time when there were tools available to cut them etc.\nConstruction materials vary according to availability of materials. So, in London for example, clay was abundant so most houses are made of bricks. New Zealand houses are generally made of timber etc.\nSo cinder blocks would be probably something you would have found in volcanic areas.\nThe modern cinder blocks would have to be invented after the development of coal fired power stations.
233283
a regular light bulb \nas apposed to a floresent
1149004
lint and a few pennies
162225
A brownstone building with four floors.  Brownstones are a type of building prominent in some cities--Brooklyn in NYC has many brownstones.
315060
Fly ash is a supplement to portland cement. Fly ash can replace part of the percent of cement needed to make the bricks. For example, in DOT projects in the state I live in you can supplement upto 30% of the portland cement with fly ash. Hope this helps.
426477
I have no idea why they are so called, but a tesselating pattern is one which repeats with no gaps. Tiled floors are a good example, from the basic squares to the more complicated tiled floors seen elsewhere
566361
Well, first of all, this isn't geometry.\n\nThe first brick has a volume of 0.2m * 0.1m * 0.05m = 0.001 cubic metres.  Its density is mass divided by volume, so 1.2kg/0.001 = 1200 kg/cubic metre.\n\nThe second brick's volume is 0.25m * 0.15m * 0.04m = 0.0015 cubic metres.  \n\n1200kg/cubic metre * 0.0015 cubic metres = 1.8kg.
913035
The bond is the way in which bricks are arranged in a wall, it is necessary to prevent the vertical joints in two consecutive courses being positioned directly above one another, as this weakens the construction.\n\nFrog - the indentation in the face of a brick, which makes it both easy to handle and bed into mortar. or a depression in the bed surface of a brick. Sometimes called a panel. \n\nTraditional bricks often had one of the bedding faces hollowed out to form a 'frog'.  This saved clay and helped key the bricks to mortar, although this was often minimal as they were usually laid frog down. Modern specifications are often for 'frog up' to give the wall greater strength and maintain the wall's density.
1004767
I am in Canada, no idea what Lint is.  It must be a British brand name.  I do know of good burn remedies here in Canada though.  Contact me if you are interested.
290922
I'm not sure what a microstructure is really but I know that on softer soil or ground that often a floating concrete structure design is used, beginning in the 1880s or maybe earlier.  Because the gorund is soft, instead of driving piles down to the bedrock, they covered a large area with a steel grid and filled it with concrete, this allowed them to start building skyscrapers and larger structures.  It may be a little different today, but the floating idea was that it ballanced itseld, and heavy objects, really heavy, are placed to maintain this balance so it doesn't tilt.  Sorry if you already know all of this and it is no help, I just thought it was interesting.
478699
You will first have to contact your municipality and see if they allow outdoor "recreation" fires. We built one in our back yard and used redbrick to do it. Dig a pit aprox 1 to 1&1/2 feet deep, and as wide as you need it. Level out bottom. Line with redbrick. Leave sides earthen. You have to remember to not stack the bricks around the top, this will prevent air flow.If you want a finished look for the top use one layer of bricks turned on their side so the holes in the bricks let the fire get air. If you just want an outdoor fire ring that you can cook on look on Gander Mountain's website. You will need to order a catolog, it's free. They sell fire rings that are somewhat inexpensive and you can put your cooking racks right on top to cook. We have both and use the ring more than the pit it's easier and can be taken inside over he winter. I hope this helps you out. Good Luck!!!\nhttp://www.gandermountain.com
899115
It would be a great lead-in to a unit on building and construction – why some structures are better suited for certain environments and climates.\n\nBrickmaking with and without various components might be a hands-on activity.\n\nThere might also be room for stressing the importance of teamwork (working together against the wolf, problem-solving as a group, brainstorming, etc.)\n\nIs that what you were looking for?
592477
The flax plant. Linum usitatissimum is the common one. Linum angostifolium is the wild ancestor plant, which can also be used but is not grown commercially.
727957
Sure...\n\nRWRWRWRWRW\nWRWRWRWRWR\nRWRWRWRWRW\n\nHowever, it requires you to stack the opposite color bricks on top of each other like a checkerboard, and *not* to stagger the bricks.  This wouldn't be your typical brick wall and wouldn't be very strong.\n\nIf it requires staggering, you can see that if you put two different color bricks down next to each other, there is no way to stagger a brick between the two unless you add a 3rd color.
309009
First you gather the components used to make bricks.  Mud, straw, water.  Mix together very well. The consistancy should be where you can shape it and it'll stand on it's own.  Or, you could put it in a mold if you'd like. Shape the mixture to what pleases you, then either fire up or dry out in the hot sun.  When it is completely hardened you have a brick.