Most people think Turtle & Tortoise are same. You knew ?? Image
After reading this you can give a small test also. Which one I am holding in my hand (rescued one) ? Image
Which one is this. Old click. Hint: this is very rare species. Only few hundreds remaining on planet now. Image
Which one is this. Turtle or tortoise ? Image
It’s a turtle.
It’s northern river terrapin. They are between turtle and tortoise.
It’s a tortoise.

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More from @ParveenKaswan

15 Oct
During a significant project of DRDO, the work pressure was high. A scientist approached his boss – & asked to leave early that day considering he had promised his children to take them to an exhibition.

Boss generously granted permission, the scientist got back to work. 1/3
When he did, he lost the track of time & forgot to leave early. He reached home, feeling guilty, looked for his kids, but could only find his wife.

He asked for kids, and to his surprise she told him: “your manager was here around 5:15 and he took kids for exhibition!”. 2/3
Apparently, Boss had been observing the scientist and noticed that he might never realise he had to go home. Feeling for the kids, he decided to take the kids in his stead.

Boss was none other than APJ Abdul Kalam.

Remembering Kalam sir on his #BirthAnniversary 3/3
Read 4 tweets
11 Oct
Thread of life. That is how a luxury product called as tussar silk is created. Its a story of cocoon to cloth.
The tussar cocoon are found naturally in forest. Also farming is done. They are collected by locals.
From cocoon the threads are made manually. As can be seen.
Read 7 tweets
7 Sep
Today #India successfully flight tested Hypersonic Technology Demonstrator Vehicle (HSTDV).

India will soon be the fourth country to have hypersonic missiles. After US, Russia & China only.

Congratulations to all scientists. 1/n
Hypersonic missiles fly with more than 5 Mach speed. Which means five times speed of sound. Supersonic is more than Mach 1.

They use SCRAMJET engines. Higher version of RAMJET engines, in short Supersonic Combustion RAMJET (SC+RAMJET) engines. 2/n
Ramjet engine works on principle of Ram effect. Which in simple terms utilising vehicular speed for compression.

But for combustion speed need to be slowed down. Combustion at Sub sonic speed. Which means during expansion there is a check on velocity of vehicle. 3/n
Read 6 tweets
5 Sep
Do you know India has 9 species of #vultures.

They are ecosystem doctors. But in recent years we have lost 90-99% of vulture population in India. Eg white-backed vulture faced a 99.9% decrease whereas slender-billed & long-billed vulture faced 97% decrease.

Many reasons for their decline. But prime reason behind reduction in Vulture population in India was use of Diclofenac in cattle drugs. This cause acute renal failure & they die.

That is why now diclofenac is banned in cattle drugs.
Many conservation breeding programs are also ongoing with good results from Pinjor to Buxa. Where they are raised & later released in wild.

Some of them are equipped with Platform Terminal Transmitters for tracking & to keep a close watch. For study also.
Read 4 tweets
22 Aug
Today is Earth #OvershootDay. It is a day when we already consumed all the biological resources that Earth can renew during the entire year.

Now we need 1.6 #earths to meet our annual demand. Alarming !!
We all consume un-equal resources. Example if all population consumed like USA then overshoot day would by 14th March. It shows inequality prevailing around the globe. This year we are able to push overshoot day due to pandemic led low consumption. But we need long term plans.
So if all consumed like USA we needed 5 earth to cater the demand. Developing countries are consuming less. Post pandemic we have a chance to take a new & sustainable path. To push the day.
Read 4 tweets
8 Aug
They say its #InternationalCatDay. Lets see how many know about them.

Tell me how many species of big cats found in India. And at least one habitat.
How many species of cats found in the world ? Big and small including. 2/n
Which is the biggest cat species found on the planet ?? 3/n
Read 11 tweets

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