Liputan6.com, Jakarta - Google Doodle hari ini hadirkan tampilan yang sungguh menggugah selera di laman utama pecarian perusahaan, Google.
Diawali 30 tahun lalu pada 1988 oleh fisikawan Larry Shaw, Pi Day selalu identik dirayakan dengan sepotong kue pai yang terlihat sangat lezat.
Lalu apa arti sebenarnya Pi Day atau Hari Pi, dan kenapa dirayakan pada hari ini? Pi Day merupakan hari perayaan untuk menghormati konstanta matematika, Pi--ditandai yang ditandai oleh huruf Yunani "π".
Dikutip dari laman Google Doodle , Rabu (14/3/2018), Angka tersebut mewakili rasio antara lingkar lingkaran (perimeter) dengan diameternya (jarak dari sisi ke sisi yang melewati pusat).
Tak hanya itu, konstanta Pi memiliki peranan penting dari bebagai bidang yang berhubungan dengan matematika.
Pi Day dirayakan tepat pada hari ini untuk menghormati tiga digit pertama dari konstanta tak terhingga tersebut, yaitu 3.14.
Jadi, 14 Maret ditulis sebagai 3.14 (Maret = 3 dan hari - 14). Maka dari itu, 14 Maret adalah Hari Pi!
The 2018 NASA Pi Day challenge features math problems used by several of the agency's missions, like the InSight Mars lander, Kepler space telescope and Juno spacecraft at Jupiter.
NASA is inviting the public to celebrate Pi Day (March 14) by sharing a series of cosmic calculations for kids and adults to solve.
The "Pi in the Sky" challenge was created by the Education Office of NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California, and is now in its fifth year. The challenge will feature math problems to calculate for Martian earthquakes, helium rain on Jupiter and the rotation rate of the first interstellar visitor ever discovered, asteroid 'Oumuamua. The topics of last year's Pi Day challenge included craters with butterfly-shaped ejecta, or tossed material, and the total solar eclipse.
Pi is a number whose digits go on forever, but it's most popularly known by the first three: 3.14 (hence March 14). It is a mathematical constant often denoted by the symbol π. Pi comes in handy when determining the circumference or the surface area of a round celestial body. It also helps engineers and scientists program the precise orbits of satellites and spacecraft. such as the impressive pirouettes the Cassini spacecraft performed before its "death dive." [9 Surprising Facts About Pi]
Ota Lutz, a senior education specialist at JPL, believes everyone should attempt the Pi Day Challenge, even if they aren't familiar with these math tools. Students in grades 5 through 12 are especially invited to participate, and JPL offers resources for educators who want to use the math problems in their classrooms.
"All of the problems in the 'Pi in the Sky' challenge are real problems that JPL scientists and engineers solve using pi," Lutz said in a statement.
Solutions to the illustrated questions will be posted on March 15, according to NASA. Pi Daychallenge problems from previous years can be found on the website, too.
Follow Doris Elin Salazar on Twitter @salazar_elin. Follow us @Spacedotcom, Facebook and Google+. Original article on Space.com.
14 March is celebrated by some as the most exciting day in mathematics — when the date lines up in the numbers of the famous constant, Pi or π. But some people would rather it isn’t celebrated at all.
The day looks like 3.14 for those that write dates in the month then day format, but that is rarely used outside of the Americas. Many people instead opt to celebrate the potentially more interesting Pi approximation day, which takes place on 22 July or 22/7 — a way of working out an approximate value for Pi for use in rough calculations.
And still others would rather that Pi day was not celebrated at all, and say that the number should not be treated with such reverence. Instead, they say that we should use Tau — a number that serves much the same purpose and can be celebrated on 28 May, or 6/28 in America.
Science news in pictures
20 show all Science news in pictures
1/20 Nasa releases stunning images of Jupiter's great red spot The storm bigger than the Earth, has been swhirling for 350 years. The image's colours have been enhanced after it was sent back to Earth. Pictures by: Tom Momary
2/20 A 3D reconstruction of an African grey parrot post euthanasia Included in Wellcome Image Awards, this 3D image of an African grey parrot shows the highly intricate system of blood vessels. Scott Birch. Wellcome Images
3/20 Baby Hawaiian bobtail squid Another Wellcome Images Award winner, this time of baby Hawaiian bobtail squid. The black ink sac and light organ in the centre of the squid’s mantle cavity can be clearly seen. Macroscopic Solutions. Wellcome Images
4/20 Skeletons of 5,000-year-old Chinese ‘giants’ discovered by archaeologists The people are thought to have been unusually tall and strong. The tallest of the skeletons uncovered measured at 1.9m YouTube
5/20 Nasa discovers 75,000 mile-wide hole in the Sun Sunspots are caused by interactions with the Sun’s magnetic field and are cooler areas on the star’s surface. Nasa
6/20 View(active tab) Apple News Breaking news email Edit Revisions Workflow Clear Cache NewsScience 132 million-year-old dinosaur fossil found at factory in Surrey Paleontologists Sarah Moore and Jamie Jordan believe they have discovered a Iguanodon dinosaur, a herbivore that was around three metres tall and 10 metres long Cambridge Photographers/Wienerberger
7/20 Discovering life on Mars is less likely as researchers find toxic chemicals on its surface The Echus Chasma, one of the largest water source regions on Mars Getty Images
8/20 The Grand Prismatic Spring, the largest in the United States and third largest in the world, is seen in Yellowstone National Park. The park is famous for its geothermal activity – which includes its spectacular, flowing springs as well as the famous "Old Faithful" geyser that sprays water out every hour or so. REUTERS/Jim Urquhart
9/20 An iris clip fitted onto the eye This images is apart of the Wellcome Images Awards and shows how an artificial intraocular lens is fitted onto the eye. Used for conditions such as myopia and cataracts. Cambridge University Hospitals NHS FT. Wellcome Images
10/20 The Syrian civil war has caused the first ever withdrawal from the 'doomsday bank' Researchers in the Middle East have asked for seeds including those of wheat, barley and grasses, all of which are chosen because especially resistant to dry conditions. It is the first withdrawal from the bank, which was built in 2008. Those researchers would normally request the seeds from a bank in Aleppo. But that centre has been damaged by the war — while some of its functions continue, and its cold storage still works, it has been unable to provide the seeds that are needed by the rest of the Middle East, as it once did.
11/20 Scientists find exactly what human corpses smell like New research has become the first to isolate the particular scent of human death, describing the various chemicals that are emitted by corpses in an attempt to help find them in the future. The researchers hope that the findings are the first step towards working on a synthetic smell that could train cadaver dogs to be able to more accurately find human bodies, or to eventually developing electronic devices that can look for the scent themselves.
12/20 Black hole captured eating a star then vomiting it back out Astronomers have captured a black hole eating a star and then sicking a bit of it back up for the first time ever. The scientists tracked a star about as big as our sun as it was pulled from its normal path and into that of a supermassive black hole before being eaten up. They then saw a high-speed flare get thrust out, escaping from the rim of the black hole. Scientists have seen black holes killing and swallowing stars. And the jets have been seen before.But a new study shows the first time that they have captured the hot flare that comes out just afterwards. And the flare and then swallowed star have not been linked together before
13/20 Dog-sized horned dinosaur fossil found shows east-west evolutionary divide in North America A British scientist has uncovered the fossil of a dog-sized horned dinosaur that roamed eastern North America up to 100 million years ago. The fragment of jaw bone provides evidence of an east-west divide in the evolution of dinosaurs on the North American continent. During the Late Cretaceous period, 66 to 100 million years ago, the land mass was split into two continents by a shallow sea. This sea, the Western Interior Seaway, ran from the Gulf of Mexico to the Arctic Ocean. Dinosaurs living in the western continent, called Laramidia, were similar to those found in Asia
14/20 'Male and female brains' aren't real Brains cannot be categorised into female and male, according to the first study to look at sex differences in the whole brain. Specific parts of the brain do show sex differences, but individual brains rarely have all “male” traits or all “female” traits. Some characteristics are more common in women, while some are more common in men, and some are common in both men and women, according to the study
15/20 Life on Earth appeared hundreds of millions of years earlier than previously thought Life may have come to earth 4.1 billion years ago, hundreds of millions of years earlier than we knew. The discovery, made using graphite that was trapped in ancient crystals, could mean that life began "almost instantaneously" after the Earth was formed. The researchers behind it have described the discovery as “a potentially transformational scientific advance”. Previously, life on Earth was understood to have begun when the inner solar system was hit by a massive bombardment from space, which also formed the moon's craters
16/20 Nasa confirms Mars water discovery Nasa has announced that it has found evidence of flowing water on Mars. Scientists have long speculated that Recurring Slope Lineae — or dark patches — on Mars were made up of briny water but the new findings prove that those patches are caused by liquid water, which it has established by finding hydrated salts.
17/20 Earth could be at risk of meteor impacts Earth could be in danger as our galaxy throws out comets that could hurtle towards us and wipe us out, scientists have warned. Scientists have previously presumed that we are in a relatively safe period for meteor impacts, which are linked with the journey of our sun and its planets, including Earth, through the Milky Way. But some orbits might be more upset than we know, and there is evidence of recent activity, which could mean that we are passing through another meteor shower. Showers of meteors periodically pass through the area where the Earth is, as gravitational disturbances upset the Oort Cloud, which is a shell of icy objects on the edge of the solar system. They happen on a 26-million year cycle, scientists have said, which coincide with mass extinctions over the last 260-million years
18/20 Genetically-engineered, extra-muscular dogs Chinese scientists have created genetically-engineered, extra-muscular dogs, after editing the genes of the animals for the first time. The scientists create beagles that have double the amount of muscle mass by deleting a certain gene, reports the MIT Technology Review. The mutant dogs have “more muscles and are expected to have stronger running ability, which is good for hunting, police (military) applications”, Liangxue Lai, one of the researchers on the project. Now the team hope to go on to create other modified dogs, including those that are engineered to have human diseases like muscular dystrophy or Parkinson’s. Since dogs’ anatomy is similar to those of humans’, intentionally creating dogs with certain human genetic traits could allow scientists to further understand how they occur
19/20 Researchers discover 'lost world' of arctic dinosaurs Scientists say that the new dinosaur, known as Ugrunaaluk kuukpikensis, “challenges everything we thought about a dinosaur’s physiology”. Florida State University professor of biological science Greg Erickson said: “It creates this natural question. How did they survive up here?”
20/20 A team of filmmakers in the US have made the first ever scale model of the Solar System in a Nevada desert Illustrations of the Earth and moon show the two to be quite close together, Mr Overstreet said. This is inaccurate, the reason being that these images are not to scale.
The complaints about the date are relatively obvious. Most places around the world use a different system to the US, where Pi Day was born.
By far the most popular date format is day/month/year, as is used in the UK as well as much of Asia, Australia, Africa and South America. It is not possible to write Pi day using that format, but it is easy to write Pi approximation day.
In China and many other countries in south-east Asia, dates are written year/month/day. It is possible to do Pi day in that format since the day (14) does follow the month (3), but the year comes first and throws that off slightly.
But the complaints about the competitor to Pi Day, Tau Day, are much more aggressive — and campaigners for the change have made a website and a full manifesto, laying out exactly why the world is wrong.
That manifesto, written by Tau fan Michael Hartl, is dedicated to the “true circle constant”, which he says should be referred to by the Greek letter Tau.
The number itself is simply Pi, but doubled — 6.28318, and so on. That makes it easier to use in many applications, campaigners claim.
But those behind the Tau manifesto admit that they are facing a difficult challenge: “a powerful conspiracy, centuries old, determined to propagate pro-Pi propaganda”. But they hope that they can prove that Pi “is a confusing and unnatural choice for the circle constant”, they say, even if the name of the constant and its day doesn’t actually change.
To settle the argument, some people have taken to celebrating a specific “Tau time” on Pi day — 6.28pm. That is when, for instance, the Massachusetts Institute of Technology sends out its admissions decisions over the internet, which was a change made to welcome Tau into the celebrations.
This article was originally published in 2016
CLOSE If you really needed another excuse to eat pizza, here's 3.14. A previous version of this video contained deals that were no longer being offered. USA TODAY
Pi Day is the biggest day of the year at Blaze Pizza. (Photo: CONTRIBUTED PHOTO FROM BLAZE PIZZA)
Math scholars are acutely aware what $3.14 gets them on Wednesday.
March 14 is Pi Day, an annual celebration of the mathematical constant π (pi), which is the ratio of a circle's circumference to its diameter. The trillion digit ratio is rounded to 3.14.
For the rest of us, it's simply a day of deals on pizza, pastry and pot pies.
Pizza deals
Offers can vary by location so call ahead to be on the safe side. Also be prepared for restaurants to be busy.
Bertucci’s: All east coast locations are celebrating the “Week of Pi” by highlighting ongoing promotions like its “Two for Tuesday pizza special” called “Pi Twosday” this week and “Pi for Kids” Wednesday, which is the weekly kids eat free with $10.99 or more adult purchase special. Also this week, preview the new spring menu that rolls out March 19 and includes a Verde Pizza for “Pi Verde.”
BJ’s Brewhouse & Restaurant: Mini one-topping pizzas are $3.14 Wednesday. Dine-in only.
Blaze Pizza: Build your own pie for $3.14 all-day Wednesday at the company’s 245 traditional locations. Limit one per customer and in-restaurant only.
Being rational is hard. Eating pizza is easy. Mark your calendar 🗓for 3/14. https://t.co/9SFNB74uUopic.twitter.com/dctWN2y1MU — Blaze Pizza (@BlazePizza) March 7, 2018
Cicis: Buy an adult buffet at regular price Wednesday and get a second adult buffet for $3.14.
Fired Pie: From 2 p.m. to close Wednesday, get any one-topping pizza for $3.14 with purchase of a drink.
Firenza Pizza: Get a one-topping 10-inch pizza for $3.14 with purchase of a drink Wednesday.
Flippers Pizzeria: MyPie Cheese Pizzas are $3.14 Wednesday.
π Day happens next Wed! Get ready for $3.14 MyPie Cheese Pizzas ALL DAY Mar. 14th! 🍕🍕🍕 #FlippersPizzeria#MyPie#PiDaypic.twitter.com/5SASlmY9zG — Flippers Pizzeria (@FlippersPizzaUS) March 9, 2018
Giordano’s: Get $3.14 off any online order Wednesday with code PIDAY314. Valid at all locations except Las Vegas Strip and Navy Pier.
Hungry Howie’s: With the purchase of any Howie Bread at regular menu price Tuesday and Wednesday, get a medium one-topping pizza for $3.14 with promo code PI18. Florida locations are not participating in this promotion.
Il Vicino Wood Oven Pizza: Margherita pizzas are $3.14 Wednesday, limit five per order.
PI(E) DAY #GIVEAWAY:
To enter to #WIN Free Pizza for a Year at Your Pie (55 winners) or a @GoPro Karma Drone, use the Your Pie Loyalty App anytime between 2/15–3/14 or share a social media post with #YourPieDay!! 📷🎉🆓🍕 Visit https://t.co/Aw4VbnueC1 for official contest rules! pic.twitter.com/CGwUqbcCQa — Your Pie (@YourPie) February 22, 2018
Me-n-Ed’s Pizzeria: Get a personal one-topping pizza for $3.14 from 11 a.m. to 3:14 p.m. Wednesday for dine-in or take out. According to a Facebook post, you need to show a picture or email to redeem and one pizza per person.
Papa Murphy’s: Get a large, thin one-topping pizza for $3.14 for online orders Wednesday at participating locations. No promo code is needed.
Patxi's Pizza: Through Wednesday, buy one pizza, get one free when you dine-in.
Pi Pizzeria: The chain is celebrating Pi Day and its 10th birthday this week. Wednesday offers include: Buy one large pizza, get another pizza for $3.14 Wednesday, get a free “4 Hands Pi” pint glass with any full-price draft beer purchase and if your birthday is March 14, get a free large pizza with a birth certificate or government ID. And through Thursday, there will be an all-day happy hour at full-service locations.
7 Across = 3.14 AND our BIRTHDAY! Starting Monday 3.12 join us for fun, deals and Pi Day festivities all week! We can't wait to celebrate turning 10 with you! Check out all the details here: https://t.co/7PYlWA9xgvpic.twitter.com/CGzfZiL5zS — ⓟⓘ (@pistl) March 12, 2018
Pie Five: All specialty pizzas are $3.14 at participating locations. Limit one per person.
Pieology: New and existing Pie Life members, buy a regular-priced custom or chef-inspired 11-inch thin crust pizza and get any thin crust pizza for $3.14 Wednesday with an email coupon. Limit one coupon per transaction, per visit and this offer isn’t valid on online orders or on orders placed over the phone.
The Pizza Press: Get a pizza for $3.14 with the purchase of a drink Wednesday.
Rotolo’s Pizzeria: Get $3.14 off any large pizza Wednesday.
Urban Bricks: Get any pizza for $3.14 Wednesday.
Villa Italian Kitchen: Sign up for a coupon at www.villaitaliankitchen.com/piday to get a whole cheese Neapolitan pie for $3.14 Wednesday. But you'll need to sign up for the coupon by Tuesday.
Your Pie: Get a pizza for $3.14 Wednesday. Limit one pizza per person and no phone or online orders. Also through Wednesday, use the Your Pie loyalty app or #yourpieday on Facebook, Instagram or Twitter for a chance to win free pizza for a year or a GoPro Karma drone and Hero 6 camera package.
Other rounded specials
Bakers Square: Get $2 off any whole pie Wednesday or Thursday and double-crust fruit pies also will be baked with the pi symbol. Plus, get a free slice of pie from 10:30 a.m. until close Wednesday with any dine-in purchase for Free Pie Wednesday.
Bojangles’: Get three Sweet Potato Pies for $3.14 Wednesday while supplies last at participating locations.
For Pi Day, get three Bojangles' sweet potato pies for $3.14. (Photo: CONTRIBUTED PHOTO FROM BOJANGLES')
Boston Market: Buy one Rotisserie Chicken Pot Pie and a drink and get one pot pie free Wednesday with a coupon available at www.bostonmarket.com.
Cheddar’s Scratch Kitchen: The Homemade Chicken Pot Pie, one of the chain's most popular items, starts at $7.99 and comes with a house salad.
Edwards Desserts: Starting at 7 a.m. ET Wednesday, the national frozen pie brand is celebrating Pi Day with a pie giveaway on its Facebook and Instagram pages. Fans can enter by commenting on either post with their favorite pie flavor. Once the posts reach 314 comments, 100 fans will win a free Edwards’ pie. For a bonus chance to win, comment at exactly 3:14 in any time zone.
Flying Star Cafe: Buy a slice of pie Wednesday and get a free scoop of ice cream.
This Wednesday 3.14 join us for #PiDay at your favorite Flying Star Cafe! Buy a slice of fresh baked pie, get a FREE scoop of all-natural Boulder Ice Cream! #FlyingStarCafe#ABQDessertspic.twitter.com/X5LY8V0xW3 — Flying Star Cafe (@flyingstarcafe) March 12, 2018
Grand Traverse Pie Company: Get a free slice of “Michigan ABC Pie” with any purchase Wednesday.
Marie Callender’s: Buy one entrée Wednesday and get a free slice of pie with a coupon available at www.mariecallenders.com. Some exclusions apply. Also join the restaurant’s e-club for a welcome offer and other discounts.
O'Charley's: Get a free slice of pie Wednesday with purchase of any dine-in entree as part of the chain’s ongoing Free Pie Wednesday promotion.
Pick ‘n Save: Get an eight-inch apple or strawberry rhubarb pie for $3.14 with a Fresh Perks card Wednesday.
March 14th is #PiDay, but you don't have to wait.
Pick up an 8-inch Apple or Strawberry Rhubarb Pie at your local #MyPicknSave for just $3.14 with your Fresh Perks card (through 3.14, of course). pic.twitter.com/XhVbfz5VIm — Pick 'n Save (@PicknSaveStores) March 12, 2018
Tony Duke’s: Try the limited-time menu item, Pi Fries, for $3.14 Wednesday. Also sign up for the chain’s loyalty program for a chance to win the fries for free.
Village Inn: Get $2 off any whole pie Wednesday and Thursday. Plus, with any dine-in purchase Wednesday from 10 a.m. to 10 p.m., get a free slice of classic fruit pie, Mint Brownie Blast or Coconut Cream for Free Pie Wednesday.
Wesco: Get three “Mini Pi” for $3.14 Wednesday. Choices include blueberry, cherry, peach and apple pie.
Whole Foods Market: Take $3.14 off large bakery pies Wednesday, while supplies last.
Pi Day wedding?
Four &pizza shops are transformed into wedding chapels on March 14. (Photo: CONTRIBUTED PHOTO FROM &PIZZA)
For the third year, &pizza is hosting free weddings on Pi Day.
The company, which calls itself "an anti-establishment establishment," is transforming four of its pizza shops into pop-up wedding chapels for couples in D.C., New York City, Philadelphia and Baltimore.
The couples were selected in advance to get a free wedding complete with the ceremony, pizza, champagne, photography and flowers.
"We offer completely free weddings every Pi Day (March 14) to celebrate love, inclusion and unity," the company said in a statement, noting there will be at least a dozen weddings Wednesday.
The shops will remain open to the public Wednesday for pickup orders and include the Chinatown D.C. location, Astor Place store in New York City, Walnut Street location in Philadelphia and Baltimore’s Fed Hill.
CLOSE A USA TODAY motion graphic explaining the significance of Pi. By Berna Elibuyuk and Ramon Padilla, USA TODAY. USA TODAY
Kelly Tyko is a columnist for Treasure Coast Newspapers and TCPalm.com, part of the USA TODAY NETWORK. This column reflects her opinion. Read her Bargainista tips at TCPalm.com/Bargainista and follow her on Twitter @KellyTyko. Sign up for her weekly newsletter at www.tcpalm.com/featured-newsletter/bargainistabest.
Read or Share this story: https://usat.ly/2GqcPi7
