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A stress line below the ground surface which connects all the points at which vertical stress is equal is called an isobar. it is a curved surface which resembles as bulb , due to the vertical pressure at all the points below the ground surface in the horizontal plane
IMPORTANCE:
*there are used to deter mine the effect of load on vertical stress at different points .
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What did Joseph swan make the light bulb out of?
He made it out of carbonized paper filaments in an evacuated glass bulb.
What was invented in 1779?
the light bulb was invented in 1779.
How long did it take to make the light bulb?
3 weeks
What is Thomas Edisons most important invention?
The Light Bulb
How did the light bulb change America?
It gave us light
Define pressure bulb in soil mechanics?
Shape: The pressure bulb is typically depicted as a three-dimensional shape, often resembling an inverted cone or pyramid. It extends downwards from the base of the loaded area or foundation into the soil. Distribution: Within the pressure bulb, the pressure is not uniformly distributed. It is highest at the base of the loaded area and decreases with depth. The pressure distribution is influenced by factors such as the shape and size of the foundation, the load magnitude, and the properties of the soil. Depth: The depth of the pressure bulb varies depending on the characteristics of the foundation and the soil. Deeper foundations will have deeper pressure bulbs.
How can pressure bulb of a foundation influence depth of soil investigation?
The pressure bulb of a foundation can influence the depth of soil investigation by affecting the stress distribution in the soil layers. A larger pressure bulb may result in increased stress in deeper soil layers, impacting their behavior and properties. This, in turn, may require deeper soil investigation to properly understand the soil's response to loading from the foundation.
What is the formula for calculating volume of Bulb in the pile foundation?
concrete qty for bulb portion in pile foundation
What are the importance of pressure bulb?
The Zone in a loaded soil mass bounded by any arbitrary isobar is known as a pressure bulb. The vertical pressure at any point on the surface of the pressure bulb is the same.
Pressure bulb can you use a sodium bulb in a mercury fixture?
no
Does a 400W high pressure sodium bulb have silver in it?
The 400W high pressure Sodium bulb contains a silver lining inside the frame to give better reflection of light. However, no silver is found inside the bulb.
Can you use a 70 watt high pressure sodium bulb in a 150 watt ballast?
No, you can not use a 150 watt high pressure sodium bulb with a 70 watt ballast.
Why the rubber bulb of the dropper must be pressed before the liquid rises to the dropper?
Pressing the rubber bulb of the dropper creates a decrease in pressure inside the dropper. This pressure change allows the liquid to rise up through the tube due to the difference in pressure between the dropper and the liquid. If the bulb is not pressed, the pressure inside the dropper remains the same, preventing the liquid from being drawn up.
Does the olfactory bulb sense temperature and pressure?
NO it has to do with the sense of smell
Why does a bulb make a bang when broken?
When a light bulb breaks, the sudden release of internal pressure causes the glass to shatter, creating a loud bang. The pressure is due to the gases inside the bulb, such as argon or nitrogen, that rapidly expand as the glass breaks.
When was the light bulb discovery made?
The discovery of the light bulb is credited to Thomas Edison in 1879 when he successfully created a long-lasting, practical electric light bulb. This invention revolutionized the way we illuminate our homes and spaces.
What is the pressure in a light bulb?
The pressure inside a typical incandescent light bulb is low and close to atmospheric pressure. This low pressure is important for the bulb to be filled with inert gas, usually argon, which helps prevent the filament from oxidizing and burning out too quickly. LED light bulbs, on the other hand, operate at much lower pressures due to their solid-state design.
