Puzzle Corner || TP

1)  3 men A,B,C go round a circle 1760m in circumference at the rate of 160m/min, 120m/min, 105m/min respectively. If they all start together when will they first be together again?

2) Identify the Personality. Click here to answer.

meghnad

Pl note each question is independent of the other, you can answer question of your choice and click on SUBMIT.

Answer to Last Month s Puzzle :  Using Kepler’s law of orbital time period: Time’s squared is proportional to semi-major axis’ cube. We have to add 6400 km to the altitude to get semi-major axis each time.  Answer :  2987.6 km

20 satellites in a single launch- ISRO did it! || Sai Krishna

Did you know ISRO is connecting HAM community since 11yrs???  The June 22nd launch was “a monumental achievement by ISRO,” in the words of PM, Namo. Most prominent satellite amongst the 20 satellites is Cartosat 2C (C2C in short). Everyone is familiar with Cartosat 2 series satellites which are Earth Observation satellite with sub-meter resolution in Panchromatic bands.
And noticeably, we have 2 student satellites from Indian Universities in the cartridge of payload cone. Out of these, Swayam satellite catches my attention (the HAM connection ) !
Configuration of satellites inside the rocket cone:

Swayam is basically a picosatellite (or CubeSat) developed by undergraduate students of College of Engineering, Pune. The project was completed over a span of 8 years and more than 200 students worked on it. They successfully completed assembly of the flight model having a size of 1-U and weight of 990 grams under the guidance of Indian Space Research Organization (ISRO). The structural design of the satellite, design of its electronic and control systems as well as the manufacturing of the satellite was carried out by the students.

Other countries’ records: Russia launched 37 satellites and USA 28 in 2014 in a single mission.

Past record of ISRO:  

It may be recalled that ISRO, in 2008, launched 10 satellites in a single rocket. That was  April 28, 2008  when PSLV-C9 launched a Remote Sensing satellite CARTOSAT-2A along with Indian Mini Satellite (IMS-1) and eight nano satellites.

 

References :
1thehindu.com
2 http://www.coep.org.in/csat/achievements/
 

Gourmet-Part 2 || Swati Singh

TIPSY PUDDING – a blend of fruits, cake and cream..

Friends we all know how important sweet dishes are on our dinner table. We are easily swept off our feet with the mention of mouth watering sweet dishes. India is specially known for its variety of sweet categories of Laddoos, Kheers and Halwas prepared using milk, dry fruits, jaggery, and grains. I bet each one of us has some fond memory of our favorite sweet dish prepared by our mothers.
With these sweet talks, I would also like to introduce you to the word ‘Dessert’.                Dessert consist of sweet foods which conclude our meal. We find varied collections of desserts on restaurant menu cards and kids ,these days, love desserts which are a combination of ice-creams, cakes and pastries.
Today, I shall be sharing with you a healthy dessert option which I recently had in one of  the Army parties. It found it healthy and easy to make which is a sure treat for your kids.
Ingredients:
 1 pound vanilla cake/Fruit cake (Fresh)  1 Milk-maid can (Condensed milk)  1 Orange juice/ mango juice 200 ml pack (Real, Tropicana etc)  1 tetra pack Amul cream   1 Delmonte fruit cocktail can  100 gm of Fruit Jam  Some fresh fruits for garnish(grapes, strawberries etc)
Method: 1. Cut the cake horizontally with the thickness of 2-3 cm (half) and place it in a broad glass serving tray/bowl. 2.  Pour fruit juice (Orange/Mango) and spread a coat of jam on it and let it soak. 3. Take out the fruit pieces from the Delmonte fruit cocktail can and mix them with Amul cream and refrigerate for 10 minutes. 4.  Coat the fruit and cream mixture on the slice of cake. 5.  Cover it with the other half cake and repeat step 2 and 4. 6.  Pour 3-4 spoon of condensed milk on the top.  7. Put the remaining cream on the sides and top (if you can have beat cream it can also be put on the top to give a perfect look to the pudding) and garnish the top with pieces of strawberry and grapes. 8. Refrigerate for an hour and serve chilled.

The Last Lecture – Randy Pausch

“I was trying to put myself in a bottle that would one day wash up on the beach for my children. If I were a painter, I would have painted for them. If I were a musician, I would have composed music. But I am a lecturer , so I lectured,”  was one of the myriad couplets about life and himself that Dr. Randy Pausch ,                            Late American Professor ,Computer Science, Human Computer Interaction and Design Departments ,Carnegie Mellon University had to say about the ‘Last Lecture’ .
The ‘Last Lecture‘ series is a common exercise in many foreign Universities where a Professor presumes his demise and delivers a last lecture which would be a way of sharing his/her philosophy about life with students and family. When Dr.Randy was diagnosed with pancreatic cancer , this lecture became all  the more symbolic for him and important too as he really wanted to leave behind something for his children to see when they would grow up and this was also a way to share his perspective about life with students and the teaching fraternity.
Dr Randy Pausch was diagnosed with pancreatic cancer in August 2006 and passed away on July 25th , 2008. He was married to the woman of his dreams , Jai Pausch and left behind three children – Dylan (6 years), Logan (4years) and Chloe(2 years) then.
Randy underwent a corrective surgery in 2007 but it did not help his disease. It refused to leave him. So Randy had two choices about the cards life had dealt with him: a ) Either sit and feel bad b) Do something with the time left in his hand.   It may sound easy to write or speak but it must have been such a trying task for Randy to have kept himself upbeat , work hard to plan at the personal front as well as contribute on the social joint as he became an instant celebrity when the last lecture video went viral in the internet during those days. He was invited to the Oprah Winfrey Show and he was part of two cancer awareness organizations – Pancan and Lustgarten. He was also invited to play a regular warm up match with a local football  team when the Football Management learnt from his ‘Last Lecture’ that  he could not complete his childhood dream of playing for NFL.
Coming back to the actual topic of ‘The Last Lecture’, Randy added the phrase – ‘Really Achieving your Childhood Dreams’ to the title of the presentation because that’s what he had done all throughout his life – he really did achieve his dreams by refusing to give up , getting across brick walls(because he believed they are there for a reason) , being a Tigger (cartoon character), working hard , attaching importance to people than materials , being truthful , spending time with books than the TV , encouraging students to believe in themselves , being a caring husband and father , a lovable and role model Professor and an inspiring personality whose  story even a commoner like me would suggest my family members to read..
‘Randy, you did it man…Thanks for your inspiring, truthful and realistic handouts about life.’
About the book : ‘The Last Lecture’ – by Randy Pausch
The book has 206 pages and divided into six chapters. In this book , Randy starts by giving introduction about his medical condition and his family life . He then moves on by narrating experiences from his childhood, his parents, their belief in him , his work life , his love life , his students , mentors , friends ,his wife and children. His friend Jeffrey Zaslow ,New York Times journalist has been credited with co-editing the book which has sold over a million copies and in over 30 languages. You can read it in our Library too;go book your slot today .

The Comet Story-Part 2 || Satyesh

We introduced comets in last issue and understood that they are hint givers of how solar system was while Earth was being born. Their study reveals many information about ancient solar system and its composition.
It is a good opportunity to see comet with naked eye because not all comets are bright enough when they come even near to the Sun. Comets have varying time periods in their orbit around the Sun. Some comets have periods less than 200 years which are called short period comets. While some comets have periods of 200 years to some thousand years which are called long period comets. This means that one particular long period comet can be seen by you only once in your lifetime! The comet shown in figure 2 has its orbital period slightly more than 2500 years.
The short period comets are thought to originate from Kuiper belt. Kuiper belt is a disc in the Solar System beyond the planets, from about 30 AU to approximately 50 AU from the Sun (1 AU means one astronomical unit which equals the mean distance between Sun and Earth). The long period comets are thought to originate from far distant Oort cloud. Oort cloud is a theoretical cloud surrounding Sun between a distance of 50,000 and 200,000 AU from the Sun. You can imagine how vast this solar system is. See Figure 1 for more understanding.

PUZZLE CORNER | | Satyesh

For this month’s Puzzle please click here.

Answer to the last month puzzle(May 2016):
Puzzle : 5 cats are taking 7 minutes to catch 5 rats. So in fact any X number of cats will take 7 minutes to catch X number of rats. So 75 cats also will take 7 minutes to catch 75 rats.
Picture Puzzle: The personality in the Picture puzzle is of well known Indian scientist Sri Shanti Swaroop Bhatnagar.
Moment du Mois : The place where the shutterbug took the snap was en-route Darjeeling,West Bengal.

Change for the better | | Archana

Don’t you think change is so beautiful?The concept is simple.Change gives a different feel to your senses.A welcome treat to your eyes.Forget what happened yesterday and concentrate on the day which has taken birth to fill your life with challenges, niceties and happiness.Enjoy the mornings and make a good start for the day.Be happy and cheerful.If all the people look cheerful,the ambiance automatically gives way for better work culture and people-culture too.
So enjoy every moment and know how to properly utilize time.If you find that something which you are doing is wrong then try your best never to repeat it.
Start renouncing your desires.Read good books-books which give a different perspective to your life,to your thinking.Remember the most important gift in this world is the gift of thought.Think good,think productive.Do not waste time.Time mis-spent is time lost.
Give feedback to people whenever you receive a good mail.Compliment at least three people a day and plant a shrub on every birthday.Give a warm welcoming smile to people.Attract people by your qualities not by exterior show of dress or sound.
Sometimes silence is the only answer.Sometimes patience is the only way.Sometimes prayer is the only key to unlock our problems.Be kind to the young,be gentle towards the old and elderly and hold your tongue under control.Its only through words that you can win hearts.Its only through your good self that you can win hearts and make better the lives of people.Understand yourself first.Remove all that you do not like about yourself.Promise yourself that you would stick to this path of perfection where you wouldn’t have to regret for an action-where you wouldn’t think,’I wish I could have’..or  ‘If only I had remained silent..’
Remember that no body is born great and that nobody is born perfect.When Nature litself acks perfection then how can a human being be perfect ? Nobody can be perfect , they can only tend towards perfection.Look around for the good qualities in the people around you.You will find to your surprise that you have so much to learn even from people whom you see everyday.Learn as much as possible.When you have learnt a good quality of the other person,do let him know that he possesses it and it has helped you grow as an individual.
Make people happy by being a good listener and being concerned towards the existence of another being.Ask about his/her health and how they are finding things at work and home.People feel very good when they have someone asking about them.If you don’t believe ,try and see for yourself the sudden interest shown by the person towards you.Sometime or the other the other person has to acknowledge the concern you are showing towards him/her.
Be ambitious and always have a goal in your mind.And keep moving from one goal post to another having achieved one.YOU are responsible for your life and work , so its YOU who have to carve out a better way of life for yourself.So TAKE the reins of your life in YOUR hands ! Take life the way you want.Don’t just flow downstream the river of life. HAVE the guts and desperate burning desire to move upstream ! GOOD LUCK .

Star Gazers: a tailed friend | | Satyesh

Sky is always an element of wonder since time immemorial. From our childhood, fascination of stars and objects beyond our earth keep charming us. Usually we fear the unknown, but here the unknown makes us feel worthy of spending time on it. Comets are one amongst such wondrous objects in the sky, witnessing which is a privilege.
Comet is a solar system object which orbits the sun and when comes nearer to the Sun begins to heat up and outgas. It has three main parts: a solid centre called nucleus, an envelope kind of haze made up of dust as well as gas called coma and tail which is made up of dust and ionized gas.
Many scientists are very curious about the formation of the solar system. It is thought that comets are the first solids to be formed in the solar system. Comets are nearly at the edge of the solar system which is a very cold region. The matter on the earth and at other places evolved from the time of formation of solar system. But it may be preserved in the comets. So if we study comets we can know the condition at the time of formation of the solar system.
Comets are often seen in bluish-green colour which is result of various fluorescence processes occurring due to interaction of Sun? s radiation and gases present in comet? s coma. Such processes in the coma and tail impart its wonderful colour. From observation of this light, scientist estimate various parameters and substances present in the coma through spectroscopic studies.
[Background image:Comet ISON,seen in October, 2013]
The tail of the comet has two parts: dust
tail and gas tail. All the dust particles present in the tail travel independently around the Sun while gas tail is spread radially outwards from the Sun. This is why two tails can be seen differently sometimes with good telescopes (as shown in the figure here)

_._. __._ Ham Radio _.. . A Wonderful Hobby | | Bipin C

Ham radio (amateur radio) is a technical hobby in which people from different parts of the world communicate through radio ( usually custom made ) . I was interested in electronics during my school days. Amplifiers, mics, speakers, lights fascinated me a lot. An old Philips Radio used to be my favourite tool. It was from one electronics magazine that I came to know about Ham Radio. Later in an exhibition stall at Kollam I came across a stall by QARL(Quilon Amateur Radio League)- a ham radio society working at Kollam. There I met a ham hobbyist from our locality VU2GRP (Rajendran Pillai). At the stall I was given a demo of how ham radio operators communicate over radio. I was thrilled to know about the society. I visited Mr Pillai’s house to see his radio shack. I satiated my anxiety and inquisitiveness by asking him all questions about working of radios, antennas etc. I became a frequent visitor of his Ham radio shack. He guided me to Ham radio. He helped me become a member of QARL which conducted classes for preparation of license test and also an examination at Kollam. There I studied Morse code which is one of the requirements for obtaining a Ham license.
At the Club I befriended lot of hams and with their help I constructed an antenna and made a radio receiver for shortwaves. I obtained a licence during the last phase of School while doing my 12th grade (+2) .

Licence : In order to handle and operate wireless equipments the Wireless Planning Commission (WPC) issues a licence based on a test which has 2 parts – practical and written . Practical test consist of sending and receiving Morse code while the written test is based on testing the knowledge of the applicant in basic electronics and wireless communication rules. and theories.
Morse code is two alphabets dit(.) a short period beep and daa (_) a long period beep which is generated using a Morse key . Morse code is very useful in long distance communication as it is very efficient (modulation index = 1) and information can be retrieved even from very faint signals.
Ham phonetics : Ham radio is very noisy . In order to
recognize words hams use a lot of standard codes
which are easy to recognize in noise and words often
need to be spelt using special words. For example,
Bipin needs to be spelt as ?Bravo India Papa India November? .
Call signs: Upon successful completion of the Licence
test Wireless Planning Commission (WPC ) assigns a
unique call sign to every operator which is used by the operator to identify one’s station in the air. My callsign is VU3BPN in phonetics ?Victor Uniform 3 Bravo Papa November? .
Regulations are imposed in terms of power, frequency , distortion and even the context of communication. Band is not the place for a song or leisure chat. Usually communications are limited to technical discussions viz. QSL which means ?Can you acknowledge receipt?? . Q codes are a set of codes used by hams in their communication.
Disaster management : When disasters like earthquake or cyclone strikes, normal communication like telephone or mobile phones are prone to be damaged . In such cases hams can relay information regarding survivors, urgency of the disaster from remote and isolated areas.
Distress signals: There are distress signals which denote
urgency of the message . When a station is in danger ,
a distress signal can be issued and all other communication on
the channel should cease and address the distress. ? SOS? in
morse code and ?MAYDAY? in voice mode repeated three
times is used to issue distress signal in a channel.
Dxing is one of the challenging and thrilling aspects of ham radio, it is all about establishing communication with very distant stations, usually in HF band. Ionospheric anomalies help hams to listen to distant stations using multiple reflection from ionosphere (sky waves). These anomalies are highly variable and usually exist for short periods only. Night hours are ideal for sky wave communications.
Electronics : This is the thrilling part of the hobby. Hams are used to experiment with a lot of electronics ranging from antenna design, receiver design , instrument design etc. International Space Station (ISS) have radio equipments with which ISS crew contacts with ground stations during their breaks.
QSL Cards are special cards(usually of postcard size) exchanged between hams as a token of friendship.
For Ham community in Hyderabad ,visit http://niar.org/
References :
http://www.ariss.org/contact-the-iss.html