What’s a housing bubble?

A housing bubble occurs when property prices rise rapidly, causing inflation and wage increases to become unsustainable. Fiscal policies and supply and demand also play a role. Negative effects include increased foreclosures and higher unemployment rates. The bubble eventually bursts, causing property prices to fall and leading to foreclosures and job losses. A new housing […]

Bubble diffuser: what is it?

Bubble diffusers aerate wastewater to promote the growth of beneficial bacterial enzymes that break down waste solids. They consist of perforated tubes, plates, or discs that generate bubbles when air is pumped through them. The size of the bubbles affects efficiency. Aeration is crucial for efficient solids removal, but it consumes a significant amount of […]

What’s a bubble level?

The spirit level is an ancient tool used to determine straight or plumb lines. It contains a liquid, often ethanol, and a bubble that should be centered between two lines. Laser levels are becoming popular, but accuracy is important in construction and engineering. The spirit level is a very old tool, used by carpenters, bricklayers, […]

What’s a Bubble Pump?

A bubble pump uses thermal energy to lift fluids without mechanical energy. It consists of a tube with an inlet in a lower tank and an outlet in a higher tank. Bubble pumps are reliable and cost-effective but not suitable for high-pressure applications. They are used in aquaculture, solar water heaters, and refrigeration cycles. A […]

Dot-Com bubble: what was it?

The dot-com bubble was a stock market bubble fueled by the rise of internet sites and tech industry between 1995 and 2001. Many companies engaged in unusual business practices, and investors responded with money. However, the growth proved illusory, and many companies went bankrupt. External factors such as outsourcing and the terrorist attacks in the […]

Uses of bubble echocardiogram?

A bubble echocardiogram uses ultrasound and tiny air bubbles to check for abnormal blood flow through the heart, revealing defects that may require surgery or other treatments. It is often used to diagnose heart defects in young children with symptoms such as shortness of breath or abnormal heart sounds. Patients should not panic if a […]

What’s Bubble Memory?

Bubble memory is a non-volatile computer memory that stores data using magnetic bubbles. It was invented in the 1970s and was marketed by several companies, but it was eventually discontinued due to its high production costs, slow operating speeds, and bulky size. Although it is no longer used in modern computers, it is still used […]

What’s the Hubble Bubble?

Hubble bubble is an English dish made from leftover meat and vegetables, often including potatoes, cabbage, carrots, peas, and Brussels sprouts. It is a variation of bubble and squeak, with the addition of baked beans and tomato sauce. The dish originated in the early 19th century and became popular during WWII. It can be made […]

What’s a water bubble?

Water blisters are caused by friction or heat and contain clear liquid under the skin. They can be prevented by wearing well-fitting shoes, using protective gloves, and avoiding exposure to excess heat. Piercing the blister is not recommended, and it is best to apply a soothing lotion and cover it with a sterile bandage. Water […]

What’s Bubble Babble?

Bubble babble is an encoding method that represents binary information as pseudo-words made up of alternating vowels and consonants. It helps people remember and repeat important information easily, and has built-in error correction and redundancy. It is useful for representing cryptographic fingerprints and verifying sensitive data for security reasons. The method contains a checksum function […]

What’s a Super Bubble?

Superbubbles are formed by multiple closely spaced stars dying, creating bursts of energy and stellar winds that heat gases to high temperatures. Researchers have identified them as the source of cosmic rays and use them to track the formation and death of star systems and learn more about the universe. Images of superbubbles are produced […]

What’s a Bubble Chamber?

The bubble chamber, invented by Donald Glaser in 1952, is a device used in physics to detect charged particles by creating a trail of bubbles that can be photographed. While it was once prevalent, it is now rarely used due to drawbacks with high-energy particles. However, bubble chamber images are still useful for educational purposes. […]

Orig. purpose of bubble wrap?

Bubble wrap was initially created as three-dimensional wallpaper but ended up being used as a packing material for fragile objects. Sealed Air Corporation owns the trademark and offers stress-relieving bubble wrap, as well as iBubble wrap that cannot be opened. In the 1950s, bubble wrap inventors Alfred Fielding and Marc Chavannes initially thought the air-filled […]

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