The Philippine Astronomical Society

PROPELLING ASTRONOMY EDUCATION TOWARD THE ACHIEVEMENT OF SCIENTIFIC EXCELLENCE AMONG FILIPINOS

Blog

Strange Particles May Travel Faster than Light, Breaking Laws of Physics

Posted on October 19, 2015 at 8:55 AM Comments comments (0)

* This is a backup post from the main page


'by Clara Moskowitz | LiveScience.com

 

Nothing goes faster than the speed of light. At least, we didn't think so.

New results from the CERN laboratory in Switzerland seem to break this cardinal rule of physics, calling into question one of the most trusted laws discovered by Albert Einstein.

 

Physicists have found that tiny particles called neutrinos are making a 454-mile (730-kilometer) underground trip faster than they should — more quickly, in fact, than light could do. If the results are confirmed, they could throw much of modern physics into upheaval.

 

"The consequences would be absolutely revolutionary and very profound," said physicist Robert Plunkett of the Fermilab laboratory in Batavia, Ill., who was not involved in the new study. "That's why such a claim should be treated very carefully and validated as many ways as you can."

 

Rewriting the rules

The results come from the OPERA experiment, which sends sprays of neutrinos from CERN in Geneva to the INFN Gran Sasso Laboratory in Italy. Neutrinos don't interact with normal atoms, so they simply pass through the Earth as if it were a vacuum.

 

After analyzing the results from 15,000 particles, it seems the neutrinos are crossing the distance at a velocity 20 parts per million faster than the speed of light. By making use of advanced GPS systems and atomic clocks, the researchers were able to determine this speed to an accuracy of less than 10 nanoseconds (.00000001 seconds). [Countdown: The Coolest Little Particles in Nature]

"According to relativity, it takes an infinite amount of energy to make anything go faster than light," Plunkett told LiveScience. "If these things are going faster than light, then these rules would have to be rewritten."

 

Previous studies have found that certain materials can travel faster than light through a medium. For example, certain particles are able to move more swiftly than light when travelling through water or oil. However, nothing should be able to move faster than light through a vacuum.

 

"It's really thought to be an absolute speed limit," said Michael Peskin, a theoretical physicist at SLAC National Accelerator Laboratory in Menlo Park, Calif. "Quantum field theory, the mathematical theory on which basically all results in particle physics are based, has the property that signals cannot travel faster than the speed of light through a vacuum. It’s really an absolute prohibition."

 

Backbone of physics

This cosmic speed limit, 299,792,458 meters per second (about 700 million miles an hour), forms the backbone of Einstein's seminal Theory of Special Relativity, published in 1905. To rewrite this law would have broad-ranging implications, including even the possibility of time travel.

 

And the findings aren't just in conflict with existing theory, but other measurements as well. For example, a famous study from the Kamiokande II experiment in Japan of the supernova SN1987A, which lies about 168,000 light years from Earthin the Large Magellanic Cloud, found that light and neutrinos that departed this exploded star arrived at Earth within hours of each other. This measurement was used to prove that neutrinos travel within 1 part in 100,000,000 of the optical speed of light.

Yet the new OPERA discovery suggests that neutrinos actually surpass the speed of light by 60 nanoseconds over 730 kilometers, which corresponds to 2 parts in 100,000, "which exceeds the SN1987A limit by a factor of more than 2,000!" astronomer Derek Fox of Pennsylvania State University wrote in an email. "So the observation is in dramatic conflict with the SN1987A result (which is not in doubt)."

But this doesn't mean that the OPERA results are wrong, Fox said. He suggested some theoretical solution, perhaps even involving string theory, could reconcile the two measurements.

 

Inviting skepticism

Realizing full well how scandalous the results will be if they are borne out, the scientists behind OPERA, led by Antonio Ereditato of the University of Bern, have decided to make their data public, in hopes of inviting scrutiny that could make sense of such radical findings. The scientists also intend to gather more data and further analyze their measurements in order to establish them more fully, or refute them. Their results will be published Friday (Sept. 23) on the physics preprint site ArXiv.

 

One of the best hopes to verify or disprove the findings comes from Fermilab's MINOS experiment, which also sends neutrinos flying underground over a similar distance to end up at the Soudan mine in Minnesota. In 2007, MINOS researchers found a trend in their data that suggested neutrinos might be arriving early, as they do in the new CERN data. However, the experiment at the time did not have enough precision to rule out the possibility that the results were a statistical fluke. [Gallery of Mysterious Lights]

 

"There was something that could have been a fluctuation in the direction of things arriving early, but it didn't have enough significance for us to make such a claim," said Plunkett, who is a co-spokesperson for MINOS. "Obviously, the hunt is on and we'll be upgrading that previous measurement and also implementing something we already had in the works, which is a plan to make improvements so we can reduce our errors. One of our next objectives is going to be trying to verify or disprove this result as hard as we can."

 

CERN plans to discuss the findings Friday during a public seminar that will be broadcast at http://webcast.cern.ch/.

 


Why Are Oceans Salty

Posted on May 9, 2011 at 8:21 PM Comments comments (0)

 

Why are oceans salty?                                                                by Fr. Victor Badillo

If we are in a lifeboat in the middle of the ocean, there will be water all around us, but not a drop to drink.  The ocean is salty. The concentration of salt in seawater is about 35 parts per thousand.  The most common salt is sodium chloride. Why is the ocean salty?


Salt in the ocean comes from the continents.  What rain dissolves is carried in the runoff to streams and rivers to the ocean.  What are dissolved are salts.  The water leaves the ocean by evaporation but the salt cannot and remains in the ocean. The runoff from the land is slightly salty. The oceans get saltier with time.


Salts also come from below the ocean, from underwater volcanoes and from salts dissolved out from the earth’s crust.


This process can be seen in a small scale in the case of the Dead Sea.  Slightly salty water from the Jordan River flows into the Dead Sea which has no outlet.  The low input of fresh water plus the large evaporation rates make the Dead Sea saltier than the oceans. Because of its density, it is easy for men to float.


A similar process is seen in the salt making in the Philippines.  Sea water is fed to the salt bed.  When the water has evaporated, a new supply of sea water is fed, etc. until the salt maker thinks it is time to totally remove the water.  Then he just rakes in the salt crystals into containers.  They are for sale in wet markets and sought by makers of bagong and patis. I find this tastier and more nutritious than the salt from salt mines.


This can be done in regions with pronounced dry seasons, namely several months without rain.  The regions are in the western part of Luzon and Mindoro.  In the Metro Manila area, one place is Las Pinas.  The word for salt is asin. The name Pangasinan may be understood as where salt is made, pangasin an, just as we have pala isda an,or place for raising fish or isda.This has been done as a small family affair. Now there are corporations making salt. But the Philippines still has to import salt.


Not to be neglected are the roles of the sun, gravity, dust particles and cosmic rays. The sun is needed to evaporate the water that becomes rain.  In evaporation, the vapor-laden air immediately above the ocean surface is warmed and gravity makes it rise to cooler upper air where they can condense.  Still needed are dust particles to serve as nuclei for the vapor to condense on.  Serving also as nuclei are ions caused by the passage of cosmic rays. Then gravity makes the water drops fall to the ground and makes the water flow down to the ocean.

The Amazon River in Brazil contributes so much river water to the Atlantic Ocean that miles from the mouth of the river, water is still fresh and can be drunk.  The small amount of salt in the river water from the Amazon and other rivers added to the ocean continuously for centuries cumulates to the present salinity.  If a poor man patiently sets aside savings, he can rise above poverty.

 

 

Re Mars Same Size as Moon?

Posted on September 3, 2010 at 12:11 PM Comments comments (0)

From Sharon Fangonon

 

I thought someone ought to make a computation of how much closer Mars would have to move away from its current orbit in order to be as large as the Moon.

 

Let's see if I can figure it out with some back-of- the-envelope computations. The moon is around 27% the size of Earth and it's around 30 times as far as the Earth's diameter. Mars is 53% the size of Earth.

 

On the average, the Moon is 384,400 km from the Earth. At Mars' closest approach in 2003 (perihelic opposition), it was 55,758,006 km from Earth. At that distance it wasn't even a tiny disc to the naked eye. If it's a simple ratio and proportion, then Mars ought to be 750,553 kms away from Earth to be the size of the Moon.

 

The average distance of Mars from the sun is 227,700,000 km. Earth's is 149,500,000 km. That's a difference of 78,200,00 km. This means Mars' new orbit should have a radius of around 150,250,000 km. That's only 59 Earth diameters away instead of the normal perihelic distance of 4,370 Earth diameters away.

 

I don't know what sort of catastrophic event would push Mars closer to the sun. Maybe a huge meteor strike? It would probably be catastrophic for the solar system and Earth, too. Even if Earth doesn't get struck, I wonder what sort of havoc the gravitational pull of a very close planet would mean.

 

Sharon


Upcoming Sky Events

No upcoming events

Upcoming and Past PAS Events

2017

May 6-7   -  BigHandys Grounds Overnight  Stargazing

April 22-23 -  BigHandys Grounds Overnight Stargazing

March 19  -  Free Telescope and Celestial Navigation Workshop for members only at Semicon Bldg, Pasig.

February 11-18  -  2017 National Astronomy Week celebration at San Beda, Manila

February 4-5  -  Overnight Stargazing at Big Handys Grounds, Tanay, Rizal

2016

December 10-11 -  Geminid Meteor Shower Observation and Stargazing at BigHandys Grounds, Tanay.

October 21-23 - PAS Astronomy- Ecotourism Pilgrimage at Monreal, Masbate.

October 8  -  Monthly Meeting at Miriam College High School

September 24 - Monthly meeting at Immaculate Conception Parish School, Malabon (cancelled)

August 27 - Monthly meeting at QC Science Interactive Center ner SM Annex, Bago Bantay, QC

July 30 - Meeting and lecture/ Election of BOD at Adamson University in collaboration with the Physics Society of Adamson University

July 23 - National Museum Tour

June 25 - Monthly Meeting and Lecture at Polytechinc University of the Philippines, Main Campus, Claro M. Recto Hall, Teresa St., Manila from 2 to 5pm. Required pre-registration on or before June 18, 2016. open to PAS members and non-members.

May 7-8   -   Stargazing and Eta Aquarids Meteor Shower Observation at BigHandy's Grounds, Tanay, Rizal

April 21-24  -  PAS Goes to Ilocos, a 3day, 2 night tour of Ilocos. Aside from the tours of sights and interests in Ilocos, PAS may observe the peak of the Lyrids meteor shower at a beach on the night of April 22 or 23.

March 9      -   Partial Solar Eclipse Observation at Manila Observatory from 6am to 10am.

February 13-20  - National Astronomy Week Celebration, De La Salle University, Taft and Miriam College High School, katipunan Quezon City

January 23  -  Free PAS lectures 2-5 pm at De la Salle University Taft Avenue, Manila

January 16   -  Search for Comet Catalina at Manila Observatory roofdeck

2015

Dec. 12-13  - PAS Geminids overnight observation at Big Handy's Grounds, Tanay

Nov 28     - PAS Lectures 2-5 pm at Philippine Normal University, Taft Avenue, Manila

Oct. 17 - Regular monthly meeting at Miriam College High School, 2-5 pm

Sept. 29 - "Lecture" at Alejandro Roces Science Tech High School (3pm-5pm)

Sept. 12 - BOD meeting at PAS office, Semicon Bldg. Pasig City

Sept. 5  -  "Lecture" at Pamantasan ng Lungsod ng Valenzuela (12pm - 2pm & 3pm-5pm)

August 29    - Monthly meeting and Election of officers at PUP, Sta. Mesa campus

May 30-31   -  ALVIERA BRIGHTSCAPE CAMPFEST, SandBox, Porac, Pampanga.

May 23       -   Guided PAS tour of 150th Anniversary Manila Observatory exhibits

May 16-17  -  Overnight stargazing at Big Handy;s Grounds, Cuyumbay, Tanay

April 23-26  - PAS 3d/2n Trip to Puerto Galera, Mindoro

April 21  -

PAS APRIL MONTHLY MEETING

WHEN - APRIL 21 (Tuesday) 2-4 PM

WHERE - East Asia-FEU Morayta

Details to come. Please pre-register with Hernan Dizon at 09184638951. Note: strict compliance is requested.

March 21 - PAS Regular Monthly Meeting at PUP (Polytechnic University of the Philippines) from 1:30-5:00 PM at PUP Main Campus, Teresa St. Sta. Mesa, Mla to be held at Hyundai AudioVisual Rm, Charlie del Rosario Bldg.

March

February 14-21 - National Astronomy Week. Opening activities/competitions at Oz Bldg, Adamson University, San Marcelino St., Manila. See NAW Poster at Home page and at NAW 2015 page.

January 31 PAS observed the five visible planets - Venus, Mercury, Jupiter, Mars, Saturn and Comet Lovejoy at Manila Observatory roofdeck, Ateneo de Manila Univ, Loyola Heights, QC. Overnight observation will start at 6pm January 31Saturday to 5am Sunday February 1. Comet Lovejoy viewing will be once in a lifetime because it will be seen again on Earth after 8000 years.

January 24  - PAS Monthly Meeting at De La Salle University, Taft from 1:30 to 5:00pm held at St. Joseph Building, 5th Flr.

HOW TO BECOME A PAS MEMBER

Your interest in astronomy is your only requirement to become a PAS Member. PAS will teach you all the rest and you will learn from the organization all the how-tos and astronomy info by joining meetings and events. You need not have a telescope of your own.

Please do the following:

1. Download Membership form from Members Page or Membership Form Page.

2. Fill out membership form and attach a photo.

3. Deposit your 500p initial membership fee to PAS BPI Checking  acct 3081111722.

4. Email your scanned deposit slip, filled-out membership form, and separate ID photo to [email protected] .

5. THANK YOU FOR YOUR INTEREST IN JOINING PAS!!!

GOOD NEWS EXCLUSIVELY FOR PAS MEMBERS ONLY

The following are now what you get as a PAS member:

PAS ID needed to claim discounts

1. PAS ID

2. PAS Membership Certificate

3. PAS button pin

4. PAS Membership Handbook

5. Free participation in all PAS events where nonmembers pay a joining fee.

6. Free entrance to the National Museum Planetarium during their scheduled showings.

7. 10% discount on Celestron scopes and accessories in all Cutting Edge Stores.

8. 50% discount on your tektite purchase from a tektite collector/supplier. Available during PAS meetings and events.

9. 10% discount at Califruits and Blooms Flowershop. Order online or call owner Maitz Aquino at 09052354805 or at 09474300940.

10. 5% discount from your package adventures, mountain climbs, travel/hotel bookings from CHOOSE US TRAVEL based in Dumaguete City, Negros Oriental. Please contact the proprietor/manager Lucille Teleron at 099885924528.

11. 5% discount at Pizza Volante, Session Road, Baguio City through owner PASer John Nassr.

12. 30% discount at Golden Leaf Spa at Semicon Building in Pasig City.

13. 10% discount at Art of Taco - Mexican restaurant located at the 2nd floor of Light Mall in Mandaluyong. They will eventually branch out nationwide. Contact 9411102, www.artoftaco.com.

14. 10% discount at Hainanese Delights (famous for their unlimited Hainan rice)  located at 2nd Floor, Robinsons Forum Pioneer, Mandaluyong. Contact Manager Lance Tambalque at 09158875235.

15. 10% discount at Balai B + B - Located at 53 Burgos st. Tuguegarao City, Cagayan, Balai b+b Hotel is close to all - market, church, stores, schools, etc. Landline is 078-844-5283; Globe, 09158543370. Please contact Hotel Manager Oscar Lavadia.

16. The Mind Museum

P950 discounted rate for three (3) Weekday All Day Pass Gift Certificate (originally at P2,250) to all members. A maximum sale of ten (10) All Day Pass Gift Certificate are allowed per person. Promo is only available during booth activation in a PAS gathering.

17. 10% discount at Mindoro Korea Beach Resort (with swimming pool) at White Beach, Puerto Galera. Please contact Manager Alvin Consaludo at 09279581010 or at 09202366744.

18. Discount on your local and international airfares/ bus fares nationwide. Call Hanguk Travel Express at (02) 239 7208. Or pm Proprietor PASer Lamer Morales. Agency address: 497 N. Cruz St., Palatiw, Pasig 1600.

19. 15% discount at Luisa's Lodge at White beach, Oriental Mindoro. Call Lodge owner Luisa Mendoza at 09064788567, 9322339705, 09493985825. Their lodge has hot and cold water.

20. 15% discount at Crown Lodge Beach Hotel, Station 2, Boracay. Please call Manager Joam Rosal at 09179242930 or at 09075492995.

21. 15% discount at Tonglen Beach Resort at Boracay, with swimming pool, 3 min-walk to Station 2 beach. Call Manager Ivy first at (63) (36) 2883457/ 2885190; Fax# (63) (36) 2883919; email [email protected]; website: www.boracaytonglen.com.

22. 15% discount at Conquer Outdoor Equipment, 2nd level, Robinsons Pioneer Mall, cor. Edsa and Pioneer5 St., Mandaluyong City. Ph: 7470726. Other store at Fairview Terraces Branch, Quezon City. Or check Conquer Online Store. Website: https//iprice.ph/conquer.




Like us on Facebook

For the latest news in Astronomy, click our Twitter Follow Button

Yahoo! Groups

Click to join philastrosocietyMAILING LIST/FORUM