Trending March 2024 # 4 Questions About Elon Musk’s Plan To Colonize Mars # Suggested April 2024 # Top 5 Popular

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Elon Musk doesn’t let a silly thing like a rocket explosion deter him from dreaming big. Even though SpaceX‘s Falcon 9 is grounded after a fiery demise on September 1, the CEO will take the stage at a conference next week to discuss “Making Humans a Multiplanetary Species.”

During the talk, Musk plans to “focus on potential architectures for colonizing the Red Planet.” In other words, he’ll likely be laying out SpaceX’s plan to put humans on Mars.

What we know so far is that Musk hopes to launch an uncrewed Dragon to Mars, to practice landing with its retrorockets, as soon as 2023. He thinks the company could carry the first humans to Mars as soon as 2025.

But getting there (and back) certainly won’t be easy. Here are some of the biggest challenges Musk and others will need to overcome before we can set sail for another planet.

1. How are we getting there?

Although SpaceX’s current Falcon 9 rocket could technically deliver a payload to Mars, it wouldn’t be a very large one. NASA estimates a crewed mission to Mars will require 100 tons of cargo or more. So we’re going to need a bigger rocket, and SpaceX is working on that.

The Falcon Heavy should be capable of taking crew to Mars, although it would need a few trips to deliver all that cargo. The heavy-living rocket was originally supposed to launch in 2013, but the date keeps getting pushed back. After the September 1 explosion, the Falcon Heavy’s maiden launch got delayed again from November to the first quarter of 2023.

SpaceX’s Falcon Heavy rocket consists of one main booster strapped to two smaller side boosters. It is slated to launch in early 2023, and could eventually carry humans to Mars. SpaceX

We’re also going to need a bigger spaceship. The Crew Dragon, like other crew capsules designed to get astronauts into Earth orbit, has enough room for a few people to stand up inside, but it’s not equipped for a months-long journey to Mars. If the Crew Dragon does make it to Mars, it’ll be attached to a larger habitat module that gives the crew privacy, exercise areas, a bathroom, and other essentials.

SpaceX has a concept for a larger ship–the Interplanetary Transport System, formerly known as the Mars Colonial Transporter–designed to carry either 100 humans or 100 tons of cargo to Mars (or beyond), but little is known about what the ship would look like or how it would operate. Launching this behemoth would require an even larger rocket than the Falcon Heavy.

2. How will the astronauts survive?

After leaving Earth’s orbit, future Mars explorers will be at the mercy of deep space radiation. Not only could these charged particles harm the crew, they might also degrade their food. So the spaceship will either need to radiation shielding (which adds weight and cost), or someone needs to come up with a sunblock that protects against radiation.

What will the astronauts live in when they get to Mars? Currently, Bigelow Aerospace’s expandable habitats are a top contender. Compared to the aluminum structures typically used in space, Bigelow’s habitats are lighter and they travel in a compact state, inflating to full size at the destination site. A test demonstration of a Bigelow module on the International Space Station went well, but the company is not sure whether their designs will hold up on the gritty, radiation-bombarded red planet.

BEAM inflatable space habitat expansion GIF

Four possible scenarios shown.

3. How would such a colony be sustained?

Every resupply mission to a colony on Mars would cost millions or billions of dollars. Who’s going to pay for that? And what will we get from Mars in return? Although the goal of ensuring humanity’s survival in the event of a cataclysm on Earth is nice, NASA’s budget is tight already, and businesses would need a financial incentive to pitch in. Perhaps space tourism will provide the solution.

The ultimate goal is to get a Mars colony to be self-sustaining. But that too will take a lot of time, effort, and money to set up.

Without a realistic long-term plan, the goal of colonizing Mars is in danger of going the way of the Apollo missions: spend a lot of money to put the first humans there, plant a flag, fly a few more missions until the public gets bored, then never return.

4. What will NASA’s role be?

Space is hard, and Mars is even harder. Elon Musk has his work cut out, and we’re looking forward to learning more about how he plans to solve these problems during Tuesday’s talk, which starts at 2:30pm Eastern.

Correction, 9/26/2024: An earlier version of this article misstated the time of Musk’s Mars talk.

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Spacex Starships Keep Exploding, But It’s All Part Of Elon Musk’s Plan

Update on March 4: Yesterday, Starship number SN10 exploded on the ground after landing. That marks the third consecutive explosion of a SpaceX Starship rocket. The story below, first published on February 17, outlines the company’s controversial approach with the large space vehicles.

In February, a gleaming, 15-story rocket exploded in a massive fireball over a coastal testing facility near Brownsville, Texas. A video of the fiery crash, broadcast via YouTube by SpaceX, looked like something out of a Michael Bay blockbuster.

To many observers, the crash of the SN9 Starship rocket may have seemed like a significant setback for SpaceX CEO Elon Musk and his team of pioneering engineers who hope someday to take people to Mars. But to SpaceX principal integration engineer John Insprucker, the crash was all in a day’s work. “We had, again, another great flight up,” Insprucker said on the video following the crash. “We’ve just got to work on that landing a little bit.”

Work on that landing, indeed. Here’s what to know about that fiery event, a previous one in December, an upcoming attempt (update on March 4: that one exploded too), and why the FAA is involved.

A Starship explosion on February 2, 2023. Musk calls moments like these a “rapid unscheduled disassembly,” or a RUD. YouTube / SpaceX

What happened to SpaceX’s Starships SN8 and SN9

Sending rockets to space is hard. Landing them back on earth intact so they can be reused is even harder. NASA has known this for decades, but now we are in a new era of space travel, with private companies like SpaceX, Jeff Bezos’ Blue Origin, and other private firms who are racing to open up space to the public in a way that only science fiction movies could imagine just a quarter-century ago.

The February 2 crash came less than three months after another Starship rocket, the SN8 (the SN stands for Serial Number), also exploded on December 9, 2023, at SpaceX’s Boca Chica facility near Brownsville, Texas. Though spectacular and seemingly dangerous, both explosions were not entirely unexpected. (It’s worth noting that both were uncrewed tests, and no one was hurt.)

In a tweet on November 24 before the SN8 launch, Elon Musk said that a “lot of things need to go right,” and gave the possibility of total success a “1/3 chance.” Despite the SN8 crash, SpaceX declared afterward that the flight represented an “awesome test,” and added, “Congratulations, Starship team!” In a tweet following the crash, Musk said the explosion was caused by low fuel tank pressure.

[Related: SpaceX’s Starship flies, belly flops, and bursts into flames]

The SpaceX Starship program began in 2024 with the goal of launching cargo and as many as 100 people at a time on missions to the moon and eventually to Mars. During its early development stages, Musk said that the Starship vehicle could potentially launch people into space by 2023, but he has since backtracked on that statement, saying that there are likely “hundreds of missions,” still ahead before that happens.

The Starship rocket is actually the second stage of a two-part reusable launch system. When fully operational, the Starship carries payload and passengers and is lifted into space using a first stage, or booster rocket, called the Super Heavy. The booster is paired with the Starship to help the vehicle leave Earth. Neither should be confused with the company’s tried-and-true Falcon 9, which has proven capable of landing reliably back on earth (usually). The Falcon 9 also does not execute a belly-flop maneuver like the Starships do.

Why the FAA is involved following the Starship explosions

As much as Musk and his SpaceX team would like to frame the thunderous destruction of their spacecraft as a routine part of the arduous process of sending people to space, the U.S. Federal Aviation Administration (FAA) has stepped in, raising concerns about how the rocket company is managing its launches and addressing public safety concerns.

The Verge reported in late January that the December launch “violated the terms” of the company’s FAA test license; an investigation of the incident included “a comprehensive review of the company’s safety culture, operational decision-making, and process discipline,” an FAA spokesperson told Popular Science.

The regulatory scrutiny prompted an angry reply on Twitter by Musk, who expressed his frustration with the agency’s critique: “Unlike its aircraft division, which is fine, the FAA space division has a fundamentally broken regulatory structure,” tweeted Musk. “Their rules are meant for a handful of expendable launches per year from a few government facilities. Under those rules, humanity will never get to Mars.”

The launch also led some space insiders to call into question SpaceX’s apparent impulsiveness. “I am very critical of SpaceX after it demonstrated that it had effectively become a ‘law unto itself’ when it launched the SN8 test flight,” says David Todd, an analyst at Seradata, a UK-based firm that tracks rocket launches and satellites.

As a result of the FAA scrutiny, the launch of the SN9, which was scheduled for launch on January 28, was delayed for about a week after the agency requested additional information about the vehicle and flight plan before giving final approval.

“While we recognize the importance of moving quickly to foster growth and innovation in commercial space, the FAA will not compromise its responsibility to protect public safety,” FAA spokesperson Steve Kulm told The Verge. “We will approve the modification only after we are satisfied that SpaceX has taken the necessary steps to comply with regulatory requirements.”

The agency ultimately gave the go-ahead, expressing satisfaction that SpaceX had taken the necessary steps to ensure public safety, and the launch of the SN9 proceeded on February 2.

After a successful initial launch, the stainless-steel Starship SN9 reached an altitude of 6.2 miles, as planned, but when one engine failed to ignite as it descended, the craft could not right itself and exploded on the ground.

[Related: Astronauts explain what it’s like to be ‘shot off the planet’]

The FAA has opened a second probe into the company’s launch practices following SN9. An FAA spokesperson said via email: “A mishap investigation is designed to further enhance public safety, not to place blame. It seeks to determine the root cause and identify corrective actions to avoid a similar mishap.”

Again, SpaceX seemed to take the explosion in stride, assuming a seemingly nonchalant attitude towards the crash. In an interview on the Joe Rogan podcast on February 11, Musk said, “This is a test program. We expect it to explode. It’s weird if it doesn’t explode, frankly. If you want to get payload to orbit, you have to run things close to the edge.”

As the space company readies for the launch of the SN10 (update on March 4: it exploded), Musk and his team are projecting a higher possibility of success, perhaps as high as 60 percent. But the company is also hoping to reframe expectations: “These test flights are all about improving our understanding and development of a fully reusable transportation system designed to carry both crew and cargo on long-duration, interplanetary flights and help humanity return to the moon, and travel to Mars and beyond,” SpaceX said on the Starship website.

All told, SpaceX’s collaboration with NASA is a remarkable development in the public-private partnership that has captured the public’s imagination and refueled an interest in human space travel not seen since the early Space Shuttle missions. But the recent explosions in many ways highlight a cultural divide in an arena—space—that has traditionally been the domain of government agencies. Some experts suggest that the staid government approach may be outdated and in need of a more modern perspective.

[Related: Ralphie from ‘A Christmas Story’ could have been the first child in space. Then disaster struck.]

“NASA tries to model everything to the nth degree whereas SpaceX works on the basis of ‘test it until it breaks,’” says Todd.

He suggests that eventually these “teething problems” will eventually be ironed out, but the tension between the FAA and SpaceX will likely continue into the foreseeable future.

This story was first published on February 17, 2023. We’ve updated it since that time.

Answering The Web’s Most Searched Questions About Minoxidil

If this is the case, you have come to the right place. This article attempts to answer the most frequently asked questions about Minoxidil as a treatment for hair loss.

Does Minoxidil help in regrowing hair?

Although its mechanism is quite discussed yet, minoxidil has been known to cause hair regrowth. Androgenetic alopecia, or male-pattern baldness, is prevalent, especially to ageing men.

It is a treatment that comes in either 5% or 2% solution which is mixed with a type of foam. This mixture is then applied directly to the scalp that has been shedding hair.

Although there is no clear proof of efficacy, Minoxidil is used as a treatment for receding hairline or the balding of the front of your scalp. This is because a receding hairline is the first sign of hereditary baldness.

How does Minoxidil work?

Minoxidil, having Rogaine as the most popular brand name, can also be used by women with female-pattern baldness. It is considered as a vasodilator.

Vasodilators, when applied on to the skin, are known to improve the dilation of blood vessels which result in better blood flow. The increase in blood flow on the scalp due to the application of minoxidil is what causes the regrowth of hair. 

Also read: 10 Types of Developer Jobs: IT Jobs

What are the side effects of Minoxidil?

Minoxidil has been proven effective to both men and women who have tried it. However, we cannot ignore the fact that it may still cause side effects to some.

Also read: What Is Forex Trade? 5 Untold Forex Trading Benefits + Expert Tips For Higher Forex Profit

Is Minoxidil safe to use?

Aside from the potential side effects to other people, minoxidil is generally a safe treatment. Just like any other chemicals, you shouldn’t use more than what is prescribed.

Avoid it from having contact near your eyes, nose, or mouth. There are also no reported incidents that minoxidil affects an unborn child once the pregnant woman uses it. However, since there is no proof that it doesn’t affect it, caution is highly recommended.

More importantly, minoxidil may have interactions with other medications especially with drugs that are meant for your blood pressure or blood vessels since it mainly affects blood flow.

If you are also experiencing irritation on your scalp before baldness, you might want to consider not using minoxidil for the time being.

You can get minoxidil 5% at Numan if you finally decide that you want to try it out. Remember to use it with caution. Consulting your physician first is always a good decision for you to avoid any further problems.

It is also important to remember that if your mental health is getting affected by the occurring baldness, do not hesitate to contact a psychological expert.

Helen Bell Bell

He loves to share his technology knowledge with write blog and article.

4 Things Job Seekers Hate About Online Applications

Common frustrations with applying for jobs online include not hearing back, completing lengthy applications, losing touch with employers, and receiving automated responses.

Nearly half of job applicants wait at least two weeks to hear back, and a similar number of applicants find this wait highly frustrating.

Applying for jobs online can be less frustrating if you narrow your search, perfect your resume, conduct a background check on yourself, and brand yourself.

This article is for job seekers who struggle when applying for jobs online and employers seeking to improve the application process for candidates.

Most of today’s job seekers have filled out an online application for a prospective employer. These automated applications ask candidates to input their personal and resume information, usually in the form of dropdown menus and blank fields. That information becomes part of a vast database of applicants, of whom only a lucky few are ever actually contacted by employers.

While automated applications can save a hiring manager the hassle of sifting through a barrage of emails with traditional resumes and cover letters, many applications submitted online end up being ignored, without so much as an acknowledgment of receipt by the employer. This trend of silence in response to resumes is known as the “resume black hole,” and according to a 2013 study by recruitment service provider Sevenstep RPO, the online job application process is part of the problem.

This article is an update to an old story, but the trend remains relevant. Below are summaries of Sevenstep RPO’s 2013 study and some revealing present-day statistics that speak to a continuing trend, as well as some more recent data on online job applications, which illuminate the state of applying for jobs online in 2023.

Recent data on applying for jobs online

Several present-day findings corroborate the results of Sevenstep RPO’s now 8-year-old study. Here are some of those findings:

According to Glassdoor, the average corporate online job application yields 250 candidates, only four to six of whom will be offered an interview. In most cases, only one of these candidates is ultimately hired.

According to Indeed, 44% of online job applicants wait at least two weeks to hear back from prospective employers. Across all job applicants, 48% found the long wait times associated with applying for jobs online highly frustrating.

AARP found that the trend of seniors being ignored or even discriminated against in the hiring process has continued, both online and offline. In a 2023 survey, 61% of respondents reported either experiencing or witnessing workplace age discrimination. Another 38% described the practice as common.

2013 Sevenstep RPO study findings

“Since the economy bottomed out in 2008, the resume black hole has gained folklore status, cropping up in the national employment conversation every few months,” said Paul Harty, chief solutions officer of Sevenstep RPO, when the firm’s survey was first published. “While employers might prefer to believe it’s a myth, our recent survey of more than 2,500 job seekers indicated that this phenomenon is real, and that employers’ automated applications are a major contributor.” [Looking for work? Using these resume writing tips might help you land the job.]

Building a robust, sustainable talent pipeline should be at the top of every company’s agenda, said Harty, but employers aren’t managing the application process in a way that allows them to fully capture and leverage their candidates’ talent. Sevenstep used its survey data to reveal the top four problems candidates were having with online job applications.

1. Candidates who apply online are often ignored.

One-quarter of survey respondents indicated that they never received employer acknowledgment of their last online application. Seniors and millennials appeared to be the most likely of all age groups to be ignored by employers, with nearly 45% of seniors and 40% of millennials reporting that they didn’t get an employer response.

2. Online applications take too long to fill out.

Nearly one-third (30%) of all candidates wouldn’t spend more than 15 minutes filling out an online application, although tolerance for lengthy applications varied by age. Candidates ages 25 to 34 appeared to be the most impatient age group, as 36% of them were willing to spend 15 minutes or less, while 35% of millennials (then under age 25) were willing to spend 45 minutes or more on a single application.

3. Employers don’t stay in touch.

Sevenstep’s survey authors noted that employers should create true talent communities through networking to foster ongoing candidate engagement, even if there are no available positions for that particular candidate. Two-thirds of all candidates surveyed weren’t asked to join prospective employers’ talent communities, meaning there was no further communication after they submitted their applications.

4. Candidates get an automated response, not a response from a real person.

More than 40% of all survey respondents said they seek out a direct human resources contact on the business’s website, even after filling out an online application. This behavior is especially prevalent among higher-income households: 80% of candidates with incomes between $100,000 and $150,000 reported that they would rather apply directly through a hiring manager than through an online form.

Based on Sevenstep’s study, the best way for employers to avoid pushing talent away is to be responsive to and engaged with candidates. Looking to make the recruiting process easier on candidates? Read our reviews of the best HR software, many of whom offer recruiting tools.

How to make the best of your online job search

Clearly, applying for jobs online is no small feat. The chances of securing a position, let alone hearing back from employers, can often be so small it’s defeating. But your chances still aren’t zero. You can also increase them if you take these steps:

Consider your personal branding. If you’ve ever marketed a company online, you’re probably familiar with how branding helps small businesses connect with consumers. You can apply this logic to your connections with employers. When your public presence is consistent, insightful, and relevant to your field, your chances of making a great first impression increase.

Narrow your focus. Given all the above figures, applying for every job in sight is a quick route to feeling super down in the dumps. It’s also a complete waste of your time. Try applying solely to jobs for which you’re sure you’re qualified. The same goes for networking and job search platforms – only travel paths pertinent to your field, interests and strengths.

Use an online resume builder. As mentioned above, the average job posting attracts 250 candidates, and at most, six of them typically hear back. Amid this competition, your resume will truly need to stand out to reach the top of the pile. An online resume-building service can help. Visit our online resume-building best picks page to learn what these services can offer and decide which platform is right for you.

Make sure you pass background checks. Chances are your prospective employers are using an employee background check service to check your background before contacting you. So even if you think your background is squeaky-clean, it’s worth investigating. This typically costs very little – and eliminating this major obstacle to applying for jobs online may be well worth the investment.

Max Freedman contributed to the writing and reporting in this article.

How We’ll Nap Our Way To Mars

Rise and shine, kiddo. We’re home. Brown Bird Design

Imagine a road trip that lasts six months—no pit stops, black night the whole way. That’s how long it would take you, and how monotonous it would be, to fly to Mars. To avoid the boredom (and its cousins depression and anxiety), you could spend part of your trip in artificial hibernation, or torpor, as it’s medically known. NASA is funding research into this method for future planet hoppers, and not just to reduce the games of I Spy. Because metabolism slows during slumber, you would require less food and water, reducing a mission’s cargo weight, fuel needs, and price tag. Also, you wouldn’t want to kill your crew mates. Here’s how you might go nighty-night and save your sanity on your 34-million-mile flight.

Step 1: Pod People

Like peas in a pod.

You enter the torpor pod. Using an IV placed in a central vein in your chest, a crew mate injects a sedative similar to propofol to prevent shivering, then tapes sensors to your skin. These will monitor heart rhythm, blood pressure, oxygen levels, and other stats.

Step 2: Straight Chillin’

Cold hibernation.

Step 3: Low Maintenance

How to not die.

The crew pushes anticoagulants through the central line to prevent blood clots from forming—if they break free, they can block blood vessels. IV antibiotics help stave off infection. And robotic systems periodically stimulate your muscles to prevent atrophy.

Step 4: Food Tube


In torpor, the average body needs only about 1,000 calories of daily nutrient slurry. You “eat” via a feeding tube down your throat or a PEG tube implanted on the inside of your stomach. Urine- and fecal-collection systems keep you, and the pod, clean.

Step 5: Up and At ‘Em

Good morning!

After two to three weeks, it’s time to rise and shine. A crew member ramps down your pod’s cooling system, letting your body gradually warm. Once you’re back to normal internal temperatures, the crew will turn off your sedative and allow you to wake.

Human hibernation could be a great way to get to Mars (and beyond), but a few big questions remain.

Suspended Animation In Space Travel: What Scientists Still Need To Learn

Step 6: Get a Move On

Shake it.

You stay up for two to three days, moving your body and caring for dozing crew mates (although robots might one day take over this task). Then you go back under for another few weeks. Repeat until you arrive safe and sane on the Red Planet.

This article was originally published in the September/October 2023 Mysteries of Time and Space issue of Popular Science.

Top 10 Angular 4 Interview Questions And Answer {Updated For 2023}

Introduction to Angular 4 Interview Questions and Answers

Web development, programming languages, Software testing & others

Now, if you are looking for a job that is related to Angular 4 then you need to prepare for the 2023 Angular 4 Interview Questions. It is true that every interview is different as per the different job profiles. Here, we have prepared the important Angular 4 Interview Questions and Answers which will help you get success in your interview.

Below are the 10 important 2023 Angular 4 Interview Questions and Answers that are frequently asked in an interview. these questions are divided into two parts are as follows:

Part 1 – Angular 4 Interview Questions (Basic)

This first part covers basic Interview Questions and Answers

1. What is Binding and different types of binding in Angular 4?

The process of binding in Angular 4 is a process of establishing synchronization between the View and Model Components which are different layers in the application. The feature of data binding is available since Angular 2. The different kinds of binding are Two Way binding, Event binding, and Property binding. This data binding is an important and key factor in Angular components. Two-way binding is the combination of Event binding and Property binding features where Event binding is defined as the process of updating the values of a variable or attribute from View component layer to Model Component Layer and Property Binding is defined as the process of updating the of a variable or attribute in Model component and displaying the values in View component.

2. What is the difference between Components and Directives in Angular 4?

The Components in Angular 4 are defined as the basic classes which interact with the web page components such as HTML files or UI elements. The components will be defined as Components using Decorators. Each and every component will be designated with a predefined template. A Class can be defined using an Angular Directive to make it a Directive that can be used at run time by processing and instantiating.

3. What is Typescript and how will it be useful in Angular 4? 4. What are Components in Angular 4?

This is the common  Angular 4 Interview Questions that are asked in an interview. The Components in Angular 4 are defined as the basic classes which interact with the web page components such as HTML file. The components will be defined as Components using Decorators. Each and every component will be designated with a predefined template. A component can be defined using @Component which is called as Decorator. The selector, style, and template can be defined inside the component to implement further functionality.

5. What are the Modules in Angular 4?

A Module in Angular is defined as the file where all the Directives, Components, Pipes and Services are grouped and interlinked together to make it a perfect working Angular application. Every Angular app has a root module that will be defined inside chúng tôi which is the Typescript file format. To define a module in Angular 4, NgModule can be used.

Part 2 –Angular 4 Interview Questions (Advanced) 6. What is Routing in Angular 4? 7. What are the Directives in Angular 4?

The Directives in Angular 4 can be defined as the extended HTML attributes which can be defined as custom attributes. The Directives in Angular 4 can be pre-defined or can be Custom defined to manipulate the functionality of DOM elements. There are three different kinds of Directives in Angular 4, they are Components, Structural Directives and Attribute Directives. The Components are nothing but directives with a template. The Structural Directive is defined as which changes the DOM structure by adding or removing the DOM elements. The Attribute Directives are defined as a modification in the behavior of a component, or an element or any other directive.

8. What are isolated unit tests in Angular 4?

This is the frequently asked Angular 4 Interview Questions in an interview. The Isolated Unit Test is defined as the process of performing tests on a component or class in an isolated way rather than establishing any dependency with other components. It means that testing will be performed based on every individual component and element in isolation. Isolated Unit Tests are useful in testing the Angular Services and Pipes. The process of developing pipes in Angular which will be transformed into different kinds before being displayed needs careful testing in order to produce efficient data operations between Model and View components.

9. What are Services in Angular 4?

The Services in Angular is defined as the process of using the core functionality of the other Components in one component. The applications such as data connections that need to be utilized across different components can be achieved by using the Services in Angular 4. The process of presenting the data from Model to View or vice versa is established by using Services. Services are the best of applying communication across different classes that do not know each other.

10. What is Dependency Injection (DI) in Angular 4?

The Dependency Injection in Angular 4 is defined as the process of isolating the dependencies and tight coupling across different components. This will hold the dependencies of components in other components. Angular-Dependency Injection is the way of creating objects which depend on other objects. The instances of other components will be created or injected into another component using the Injection feature.

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