CD-ROM- A single session disc.

The word “single-session disc” is a perplex term for many people.

Well, the answer lies in how CD-ROM work.

That means you cannot add more files or delete old ones.

Without first formatting the disc and starting over from scratch.

You may have to format the disc and start over from scratch.

If you want to change something.

Before it becomes impossible to write any data onto them again without formatting first.

This is why most people end up using blank discs or CD-ROM.

Which has a “rewrite” feature for correcting mistakes.

A standard CD ROM is called a singlesession disk.

Because manufactures right all items on the disc at one time.

cd-rom, optical memory device, business @ Pixabay

One way to ensure knowledge about CD-ROM drives and other devices like printers is by asking questions about common computer terms.


A star of Bethlehem.

What is the star of Bethlehem?

It’s a question that has perplexed theologians, astronomers, and historians for centuries.

In this blog post we will explore what may be the most plausible answer to date.

The Bible tells us very little about it.

Only its appearance in Matthew chapter two:

(Matthew 24) From there on out scripture offers no explanation as to why or how it appears. 

Star of Bethlehem is known as Christmas Star.

They met king Herod of Judea and asked him “who has born as the king of Jews.”

It was interpret as a prophecy from the Book of Micah that Jewish Messiah would be born in Bethlehem to the south of Jerusalem.

All the wise men to return their way home.

christmas, clinic, birth @ Pixabay

The star leads them to Jesus birthplace Bethlehem.

Where they worshiped and gave him gifts. Many theologians believed that star completed the prophecy.

This is all about the history of star of Bethlehem.


Reciprocating compressor.

It is important to know when not to turn on the reciprocating compressor.

If your system has been shut down for a long period of time .

You are going to start it up again.

Do not energize the reciprocating compressor .

Until the condenser water temperature reaches 45°F or warmer.

This will help prevent damage that can result from liquid refrigerant contacting a cold surface.

Directly by varying the speed or by methods designed to allow direct discharge of vapor from a cylinder.

To the low pressure or suction side during the so-called compression stroke.

The capacity control method are:

  • This control method uses an external bypass around the compressor to recycle gas from the compressor discharge to the inlet.
  • Or to the atmosphere in the case of an air compressor.

The take-off point for the bypass must be downstream of a heat exchanger .

If there is no exchanger in the discharge, the bypass must branch into the suction line upstream of an exchanger.

tuning, engine block, tuned @ Pixabay
  •  A cooler may be placed in the bypass line.

Hollywood universe.

Stars are born every year, and 2018 is no exception.

With so many new talents appearing on the scene.

It can be hard to keep track of who’s who in the Hollywood universe.

But don’t worry-we’re here to help! Here’s a list of some celebrities that have made headlines this year.

The film, “First Man,” will tell the story of astronaut Neil Armstrong and how he became NASA’s first man to walk on the moon.

Emma Watson did sign a  movie!

It may be her most surprising role yet: she played Belle in Disney’s live-action version of “Beauty and Beast.”

She shared a photo from production with costar Dan Stevens and said it was “a life dream” come true.

Zac Efron lost weight for his dramatic turn as serial killer Ted Bundy in a biopic called Extremely Wicked, Shockingly Evil And Vile.

Like all these movies there are many more interesting movies you will love to watch.

film, filmstrip, cinema @ Pixabay

A perfectly competitive firm’s demand for labor curve slopes downward.

The perfectly competitive firm’s demand for labor curve slopes downward because of diminishing marginal returns.

As more and more workers are hired, the average productivity per worker decreases.

This means that as a firm hires more employees.

It needs to increase wages in order to entice them to join the company.

This results in an upward sloping labor supply curve and a downward sloping demand for labor curve.

A reason why a perfectly competitive firm’s demand for labor curve slopes downwards is that diminishing marginal returns occur with hiring additional staff members.

As firms hire more staff they need to increase wages which causes their labor supply curves upwards .

While their downward slope on the left side will cause people not wanting work at a certain wage.

The average productivity per worker decreases which causes rising wages to entice them.

The downward sloping of this curve also means that there will be a greater shortage of labor at some point.

If production cannot keep up with the rate it is being produced or consumed.

Leading to higher prices. 

india, coolie, labor @ Pixabay

Perfect Competition, a reason why a perfectly competitive firm’s demand for labor curves downwards is due to diminishing marginal returns occurring when hiring additional staff members.

As firms hire more employees they need to increase wages causing their labor supply curves upwards while.


Active volcanoes around the world.

The latest active volcanoes in the world are among those most feared by humans.

When a volcano is about to erupt, it can be difficult to predict where the lava might flow and how much damage it will do.

In this blog post, we’ll take a look at some of the most recent eruptions around the globe as well as what scientists know about them so far.

Recent Volcanic Activity

Mount Sinabung in Indonesia has been spewing ash and gas since 2010, disrupting air traffic and causing respiratory problems for nearby residents.

The Indonesian government raised the alert level to four on December 12th after detecting volcanic tremors.

Residents have evacuated from a danger zone of six kilometers around the crater’s rim, but experts warn that this may not be enough to save them if an eruption is large enough.

The last time Mount Sinabung erupted was in November 2016 when it killed 16 people who were near its summit at the time as well as injuring more than thirty others some seriously.

It also caused extensive damage to local agriculture destroying crops like corn, rice, coffee beans and sugar cane.

volcanic eruption, ash cloud, dramatic @ Pixabay

Some Facts around volcanoes

Many other active volcanoes are present around the world.

There are about 1,500 potentially active volcanoes worldwide.

Aside from the continuous belts of volcanoes on the ocean floor at spreading centers like the Mid Atlantic Ridge.

About 500 of those 1,500 volcanoes have erupted in historical time.

Many of those are located along the Pacific Rim in what is known as the “Ring of Fire.”

In the United States, volcanoes in the Cascade Range and Alaska (Aleutian volcanic chain) are part of the Ring.

While Hawaiian volcanoes form over a ‘hot spot’ near the center of the Ring.

Kilauea volcano on Hawaii is the world’s most active volcano, followed by Etna in Italy and Piton de la Fournaise on La Réunion island.

After that, it is difficult to decide the exact order on the list, but the following are very close:

Stromboli, Merapi, Erta Ale, Ol Doinyo Lengai, Unzen, Yasur, Ambrym, Arenal, Pacaya, Klyuchevsky, Sheveluch, and Erebus.


The demand and supply schedules for flying disks.

The demand and supply schedules for flying disks are shown in the table below.

Column one: the number of flying disks in stock, column two:

Demand for flying disks, column three: price charged by suppliers per unit.

A recent study found that the supply and demand schedules for flying disk are as follows:

The table below shows a summary of the hypothetical data on which we will base our analysis.

When there are only 12 units left in stock since they would then sell all their inventory”.

However, these descriptions do not provide enough information to fully understand what is happening with this market so let’s dig into the numbers and see what’s happening.

Column one: the number of flying disks in stock, column two: demand for flying disk, column three: price charged by suppliers per unit.

The study found that when there are 12 or more units in stock, then the supply equals demand at $0.75 a piece.

But with fewer than 12 units available to sell (for example if there were only one left).

Then prices would rise up over $0.99 because competition among suppliers is fierce.

Prices will stabilize around $0.80 until new supplies arrive on the market place. Demand and Supply




Mechanoreceptor and Proprioceptor.

A receptor that monitors stretch of the patellar tendon can be classified as .

Which is an organ in your body that responds to sensory stimuli.

A variety of receptors are found throughout our bodies .

They all have different functions.

The function of this specific type of receptor is to monitor the stretch or tension on the patellar tendon.

Which connects the quadriceps muscle to the shinbone (tibia).

If this receptor is not functioning properly.

It can cause the patellar tendon to become overstretched.

Inflammation of the bursa at the front of your kneecap (patellofemoral syndrome).

Receptors are essential for our body’s functionality .

A receptor that monitors stretch of the patellar tendon can be classified as a which is an organ in your body that responds to sensory stimuli.

They all have different functions.

The function of this specific type of receptor is to monitor the stretch or tension on the patellar tendon.

Neurophysiology (Section 4) - Basic Physiology for Anaesthetists

Which connects the quadriceps muscle to the shinbone (tibia).

Assists with walking appropriately. 



Life insurance policy.

There are many reasons for having life insurance.

The most common reason is to provide a financial safety net for your family.

In the event of your death. But who is this benefit actually going to?


money, home, coin @ Pixabay

The beneficiary of a life insurance policy is typically the person who receives payments from the policy’s proceeds should you die.

This can be anyone, but it usually falls on someone that you love and care about deeply, like a spouse or child.

If you want to make sure that this person will receive money when something happens to you, then choosing them as your beneficiary is an important step!

A spouse who is named the beneficiary of a life insurance policy would ordinarily be.

But in some cases there are other considerations to take into account.

For example, if you live abroad and have an American-based employer that provides your coverage.

Then you might want to keep this situation in mind.

If foreign laws require that non-citizens (including spouses) obtain their own coverage before immigration or naturalization can occur.

Then it’s worth reviewing how naming someone as your insurer will affect them financially should anything happen to you.

If they’re unable to get their own policies because of these requirements and cannot move back home with you for any reason.

Then considering what happens when two people buy separate policies becomes important again.


Different types of tires for a standard passenger vehicle.

There are many different types of tires that you can purchase for a standard passenger vehicle.

Let’s take a look at the most common tire types and what they are used for:

Car Tires: Car tires do not have treads on them.

So they should only be used on smooth surfaces like asphalt or concrete to prevent tearing up the surface material.

These tires typically come in two varieties: summer and winter.

Summer tires are designed to provide maximum traction while maintaining a comfortable ride in warm weather environments.

Such as those found in Arizona or Florida during the spring and summer months.

Whereas winter tires have more aggressive tread patterns which help with grip.

When driving over snow-covered roads, ice patches, or other slippery conditions.


car, traffic, man @ Pixabay

Winter tires also have a lower profile to keep the tire from getting stuck in snow or slush, and they typically come with an “M&S” (mud and snow) rating.

Tires for SUVs: SUV tires are usually larger than car tires as they need to be able to endure more weight when carrying passengers over rough terrain such as unpaved roads.

The most common type of tire on these vehicles is called an all-terrain or AT tire.

Because it has specially designed tread patterns that help dig into mud, dirt, gravel, sand dunes, etc.

While also providing good traction on paved surfaces like highways or city streets.

This makes them perfect for someone who often drives off road but occasionally needs their vehicle’s performance capabilities on.