शैडोइंग अभ्यास: How To See Germs Spread Experiment (Coronavirus) - वीडियो के साथ अंग्रेजी बोलना सीखें

- I've always thought if we could somehow just see the germs around us, everyone will be a lot more careful and we'd get sick way less.

Unfortunately, that's still not possible.

So I did the next best thing by running a daylong experiment in this third-grade classroom.

I found this powder called Glo Germ.

And just like real germs, when it's on your hands, you can't see it.

But unlike real germs, if you turn a black light on, it becomes visible.

But it transfers to things you've touched, so it provides a really good way to visualize exactly how germs spread.

So before the kids arrived, as a control, I went around and noted any preexisting spots in the room that fluoresced under the black light.

And then it was go time.

The kids, of course, had no idea what we were doing and that the teacher had been secretly infected with the glowing powder.

So she randomly shook the hands of three kids but didn't touch any of the rest.

And so with that, they just went about their normal day.

At break, I did choose one random student, and he agreed to letting me put some of the powder on his hands too.

And then two hours later at lunchtime, I checked the results.

Remember, everything you see here started with just the teacher and one student having a little of that powder on their hands.

And because my flashlight can only illuminate one spot at a time, I used Photoshop to better visualize our observations of where germs were left behind, including on the other kids.

Uh-oh! We're pretty hot over here!

Oh, right here.

And they were actually pretty diligent about washing their hands.

This was the desk of the kid that was infected.

And what's crazy is that germs could live on a hard surface like this for up to nine days.

And so you can see how important it is to disinfect the things a sick person regularly touches.

For example, this was the phone of the teacher in the experiment.

Even if you wash your hands really often, if you immediately pull out your phone, a lot of those germs just go right back on your hands.

Think about when the last time was that you cleaned your phone.

My friend Joanna at "The Wall Street Journal" recently demonstrated you can clean your phone with an antibacterial wipe every day for at least a year and it doesn't affect the oleophobic coating at all.

And this hopefully gives you a better mental model of why it's really important to wash your hands or use hand sanitizer after being at places like this or this or this or this.

Cleaning commonly touched surfaces is important because even if a virus is spread through airborne transmission, those tiny droplets don't stay in the air for long.

Then they land on surfaces, waiting to be touched by our hands.

Which raises an important point.

The ultimate defense against catching a virus is just don't touch your face.

Your eyes, nose, and mouth are like the single weak spot on the Death Star when it comes to viruses.

That's the only way they can get in to infect you.

But as you can see here, not touching your face is easier said than done.

And before you think, "Yeah, well, that's just kids for you," this was what the teacher's face looked like at the end of the day.

And she said she tried extra hard to remember not to touch her face.

I found this result fascinating, so I put the powder on my own hands for a few hours.

And I resisted the urge to touch my face so many times that I fully expected I was going to have a perfectly clean face and the moral high ground.

And then this is what I saw.

What the heck?

I genuinely have no idea when any of this came on.

Until I reviewed the footage.

Oh, well, there you go.

On average, we touch our face 16 times an hour, which is why washing hands is so important.

It's impossible to catch a virus directly through your hands.

It's as futile as shooting the outer surface of the Death Star.

The problem is, we use our hands to help the virus out by constantly giving it a ride to our figurative Death Star exhaust ports.

Because of this, I ran another experiment with some of the kids after lunch.

First, I had them put some lotion on their hands that also glows under a black light.

But then I told them I made a mistake and used the wrong lotion.

Could you guys just go wash your hands real quick?

And do a good washing, right?

- 20 seconds. - Yeah.

Do the right washing, okay?

I just tricked you guys again, because what I really wanted to do is test how good you are at washing your hands.

So guess what I'm gonna do now?

- What?

- Show me your hands.

But before I show you how effective they actually were at washing their hands, here's what you should quickly know about viruses.

They're super tiny, but also the most abundant biological entity on the planet.

In fact, there's over 10 million viruses in any single drop of sea water.

And a lot of types of viruses are beneficial to the planet's ecosystem, and only an insanely tiny percentage affect humans at all.

And they're really simple.

Viruses are basically a shell with some DNA inside, and they just wanna spread and duplicate.

That's their only goal.

But they're so simple that they need a host to do that.

So they reproduce by infecting their host cells and then trick them to become factories that just make more exact copies of the virus.

When you get sick and then cough or sneeze or wipe your nose and then touch a surface, you're putting copies of this virus out to find other hosts and just repeat the process.

And so here's what the kids' hands look like after washing their hands.

Uh-oh, look at the backs. Let me see your fingernails!

Oh, look at all those germs!

Oh, your thumb!

- Oh, my hand- - Oh, look at your wrist!

Look at your wrist!

We all sort of have a habitual way of washing our hands.

So once again, I tried this myself using the typical quick way I do it in my muscle memory.

Granted, that's better than nothing, but you could see the difference compared to when I was deliberate and took 20 seconds, which is why it helps to do things like sing the "Happy Birthday" song twice, or you could do what I do and follow Brandon Flowers' example.

Jealousy, turning saints in Eager eyes 'Cause I'm Mr. Brightside - And then for a final experiment, I wanted to show how dumb handshaking is.

So I infected the first kid with the powder and then had them do a handshake chain down the line.

The fifth person here still had significant traces on their hand, so I put him at the first and lined four more kids up after him, and three of their hands glowed.

So we got trace germs from the original person all the way down eight handshakes later.

So if you ever meet me in real life, please don't be offended if in lieu of a handshake I offer you a fist bump and a selfie. In conclusion, what does this all mean with regards to the coronavirus COVID-19?

You should be concerned and take this seriously, but regardless of what you see in the coming weeks, there's absolutely no need to panic.

As I'm sure you've heard a bunch by now, our goal is to flatten the curve so that reported cases stay just under the capacity of the healthcare system, and social distancing is the best knob that we can turn to affect that.

The reason this helps should hopefully make more sense after watching this video, especially for those who have been doubting the science and feeling like this is an extreme reaction.

And my take here is I'm a practical optimist.

The upside is while this virus is bad, it could be way worse.

And this gives us a chance as a global community to get some systems and methods in place to handle something potentially even more drastic in the future.

Also, maybe it'll lead to changing some social norms, like replacing handshakes with fist bumps or when people are really sick thinking it's okay to mingle about and go to work.

Globally, the normal flu kills anywhere from a quarter to a half a million people a year due in large part to people not practicing good germ hygiene.

So if this experience makes people more socially aware of the right precautions to take when they get sick, that will save countless lives for years to come long after this coronavirus is old news.

And make no mistake, this is gonna be rough for some more than others, but history has shown that us humans are pretty resilient.

These types of things can bring out the worst in us, but they can also bring out the best, most wholesome parts of us, like these Italians practicing their social distancing with an impromptu balcony concert.

How we feel about the situation is largely dependent on just which part we choose to focus on.

For me, that means being grateful to the heroes in our healthcare system, or the school lunch ladies still providing free lunch for kids who depend on them, or the scientists all over the world who are working tirelessly seven days a week to create better testing methods in a vaccine.

This is gonna be a bumpy ride for us, but the economy will eventually bounce back, as it always does, and we'll be better off as a global community for having gone through this.

Again, take this seriously, but there's absolutely no need to panic.

We totally got this.

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संदर्भ और पृष्ठभूमि

इस वीडियो में, प्रस्तुतकर्ता ने यह दर्शाने का प्रयास किया है कि हम अपने चारों ओर बैक्टीरिया और वायरस को कैसे देख सकते हैं। इस प्रयोग के माध्यम से, तीसरी कक्षा के बच्चों में यह जागरूकता बढ़ाई गई कि कैसे सूक्ष्मजीव फैलते हैं। बच्चों ने अपने हाथों पर एक विशेष पाउडर लगाया, जो काले प्रकाश में चमकता है। प्रयोग के दौरान, यह दिखाया गया कि कैसे हाथों से चीजों को छूने पर बैक्टीरिया दूसरों तक पहुँचता है। यह वीडियो न केवल विज्ञान की एक रोमांचक व्याख्या है, बल्कि यह बच्चों को स्वच्छता और सही हाथ धोने के महत्व के बारे में भी जागरूक करता है।

प्रति दिन संवाद के लिए शीर्ष 5 वाक्यांश

“हाथ धोना बहुत ज़रूरी है।” - यह बताता है कि स्वच्छता का क्या महत्व है।
“हमारी आँखें, नाक और मुंह सबसे कमजोर स्थान हैं।” - यह वाक्यांश वायरस संक्रमण को समझाने में मदद करता है।
“फोन को नियमित रूप से साफ करना चाहिए।” - यह दैनिक आदतों में सुधार की आवश्यकता को दर्शाता है।
“हर घंटे हम अपने चेहरे को 16 बार छूते हैं।” - यह आंकड़ा बताता है कि हमें अपने चेहरे को छूने से बचना चाहिए।
“गंदे सतहों को साफ करना महत्वपूर्ण है।” - यह स्वच्छता के उपायों को मजबूत करता है।

स्टेप-बाय-स्टेप शैडोइंग गाइड

इस वीडियो की सामग्री को बेहतर तरीके से समझने और बोलने में दक्षता बढ़ाने के लिए, इसे शैडोइंग तकनीक के साथ उपयोग करें। यहां एक गाइड दी गई है:

पहला चरण: वीडियो को शुरू से अंत तक एक बार बिना कहीं रुके देखें। इससे आपको प्रस्तुतकर्ता की आवाज़ और उच्चारण को समझने का मौका मिलेगा।
दूसरा चरण: अब वीडियो को छोटे-छोटे हिस्सों में बाँट लें। हर हिस्से को सुनें और उसे अपने शब्दों में दोहराने की कोशिश करें।
तीसरा चरण: महत्वपूर्ण वाक्यांशों पर ध्यान दें, जैसे “हाथ धोना बहुत ज़रूरी है।” इन्हें गुनगुनाएँ और अपने संवाद में शामिल करें।
चौथा चरण: जब आप विशेष वाक्यांशों का अभ्यास करें, तो सही उच्चारण के लिए शीशे में देखें। यह आपके आत्मविश्वास को बढ़ाएगा।
पांचवाँ चरण: नियमित रूप से इस तकनीक का अभ्यास करें। इससे आपका अंग्रेजी बोलने का अभ्यास और अंग्रेजी उच्चारण में सुधार होगा।

इन सुझावों के साथ, आप अपनी अंग्रेजी बोलने की क्षमता में सुधार कर सकते हैं और भाषा के प्रति अपनी समझ को भी बेहतर बना सकते हैं।

इस वीडियो का व्याकरण

वक्ता जिन संरचनाओं का सबसे अधिक प्रयोग करता है, वीडियो के असली शब्दों के साथ:

संरचना	वीडियो में
Passive voice be + past participle — ज़ोर इस पर कि क्या होता है, न कि कौन करता है	were left · was infected · is spread
Present perfect have/has + past participle — बीता हुआ काम जिसका असर अभी भी है	I've always thought · you've touched · you've heard
Relative clauses who / which + उपवाक्य — व्यक्ति या वस्तु के बारे में अतिरिक्त जानकारी	hour, which is · seconds, which is · those who have

शैडोइंग तकनीक क्या है?

शैडोइंग (Shadowing) एक विज्ञान-समर्थित भाषा सीखने की तकनीक है जो मूल रूप से पेशेवर दुभाषिया प्रशिक्षण के लिए विकसित की गई थी। विधि सरल लेकिन शक्तिशाली है: आप मूल अंग्रेज़ी ऑडियो सुनते हैं और तुरंत इसे ज़ोर से दोहराते हैं — जैसे वक्ता की छाया 1-2 सेकंड की देरी से। शोध से पता चलता है कि यह उच्चारण सटीकता, स्वर, लय, जुड़ी हुई ध्वनियाँ, सुनने की समझ और बोलने की प्रवाहशीलता में काफ़ी सुधार करता है।

शैडोइंग तकनीक: पूरी चरण-दर-चरण गाइड पढ़ें →

शैडोइंग अभ्यास: How To See Germs Spread Experiment (Coronavirus) - वीडियो के साथ अंग्रेजी बोलना सीखें

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इस वीडियो का व्याकरण

शैडोइंग तकनीक क्या है?