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These gaps are thermal expansion joints, they prevent the rails from buckling when they get hot in the summer. Although modern welded rail only has these gaps every mile or so to reduce the vibration and noise of the wheel crossing them (instead of every 40 feet on unwelded rail).
All construction must provide for thermal expansion (e.g. bridges have thermal expansion joints, concrete road paving has thermal expansion grooves).
What else can I help you with?
What do you call a small narrow water way between 2 pieces of land?
A small narrow waterway between two pieces of land is called a strait.
The small gap between adjacent neurons is?
The small gap between adjacent neurons is called a synapse. It is where neurotransmitters are released from one neuron to signal the next neuron in the neural circuit. This communication is essential for proper functioning of the nervous system.
What are small channels that form across the plasma membranes of adjacent cells?
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When was Small Heath railway station created?
Small Heath railway station was created in 1863.
How can divided by 3 mango in 4 people?
Cut it into small pieces or pulp it.Cut it into small pieces or pulp it.Cut it into small pieces or pulp it.Cut it into small pieces or pulp it.
How do you say the small railway station in French?
The small railway station is "la petite gare" in French.
How can a wood biscuit joiner be used to create strong and seamless connections between wooden pieces?
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What type of cellular junction that forms when a channel is formed between two adjacent plasma membrane?
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What is to cut into very small pieces?
Chop, dice are two possibilities:Chop the onion into small pieces. Dice the meat into small pieces.
When metal railway tracks are laid workers leave a small 1cm space between the rails why is this done?
For heat expansion.
When was Lisp in Small Pieces created?
Lisp in Small Pieces was created in 1994.
What did Romans use for moasics?
The Romans used small pieces of colored tile for mosaics.The Romans used small pieces of colored tile for mosaics.The Romans used small pieces of colored tile for mosaics.The Romans used small pieces of colored tile for mosaics.The Romans used small pieces of colored tile for mosaics.The Romans used small pieces of colored tile for mosaics.The Romans used small pieces of colored tile for mosaics.The Romans used small pieces of colored tile for mosaics.The Romans used small pieces of colored tile for mosaics.
