Do you know how a pearl gets its shine?
Do you know how a pearl gets its shine?
Do you know how a pearl gets its shine?
Do you know how a pearl gets its shine?

Pearls of wisdom can net you a prize


  • English
  • Arabic

If you have your own pearls of wisdom then you might shine in our science competition and win an iPad2.

Play our "Do You Know …", which was created by the Swiss university Ecole Polytechnique Federale de Lausanne (EPFL), and running on www.thenational.ae and in its Frontiers section in The National.

There is new question each Sunday, prompting readers to discover how much they know about the UAE and its culture from a scientific perspective.

Michael Mitchell, who developed the competition, said the questions were harder than they might seem but the idea of the competition was all about promoting research and learning. For example last week the competition asked what is the best way to keep cool in the sun? Click here to discover the answer.

Readers have a week to answer each question before the correct answer is published the following Sunday, together with a new question. Entry for this week's question closes at midnight Sunday, when entry for the following week's question begins.

Each correct answer will give participants an increased chance of winning the competition, with the top three finishers winning an iPad and a solar-powered keyboard.

EPFL, which has a branch in Ras Al Khaimah, is known for many scientific developments, including the first modern computer mouse in the 1980s.

The solar panels inside the keyboards being given away as prizes, called dye-sensitised solar cells, are also an EPFL technology. They operate using a process that imitates photosynthesis.

The winners will be announced in August.

Key developments in maritime dispute

2000: Israel withdraws from Lebanon after nearly 30 years without an officially demarcated border. The UN establishes the Blue Line to act as the frontier. 

2007: Lebanon and Cyprus define their respective exclusive economic zones to facilitate oil and gas exploration. Israel uses this to define its EEZ with Cyprus

2011: Lebanon disputes Israeli-proposed line and submits documents to UN showing different EEZ. Cyprus offers to mediate without much progress.

2018: Lebanon signs first offshore oil and gas licencing deal with consortium of France’s Total, Italy’s Eni and Russia’s Novatek.

2018-2019: US seeks to mediate between Israel and Lebanon to prevent clashes over oil and gas resources.

COMPANY%20PROFILE%20
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The Perfect Couple

Starring: Nicole Kidman, Liev Schreiber, Jack Reynor

Creator: Jenna Lamia

Rating: 3/5

ARSENAL IN 1977

Feb 05 Arsenal 0-0 Sunderland

Feb 12 Manchester City 1-0 Arsenal

Feb 15 Middlesbrough 3-0 Arsenal

Feb 19 Arsenal 2-3 West Ham

Feb 26 Middlesbrough 4-1 Arsenal (FA Cup)

Mar 01 Everton 2-1 Arsenal

Mar 05  Arsenal 1-4 ipswich

March 08 Arsenal 1-2 West Brom

Mar 12 QPR 2-1 Arsenal

Mar 23 Stoke 1-1 Arsenal

Apr 02  Arsenal 3-0 Leicester

Company%20profile
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The Cairo Statement

 1: Commit to countering all types of terrorism and extremism in all their manifestations

2: Denounce violence and the rhetoric of hatred

3: Adhere to the full compliance with the Riyadh accord of 2014 and the subsequent meeting and executive procedures approved in 2014 by the GCC  

4: Comply with all recommendations of the Summit between the US and Muslim countries held in May 2017 in Saudi Arabia.

5: Refrain from interfering in the internal affairs of countries and of supporting rogue entities.

6: Carry out the responsibility of all the countries with the international community to counter all manifestations of extremism and terrorism that threaten international peace and security

COMPANY%20PROFILE
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FIXTURES

All times UAE ( 4 GMT)

Friday
Saint-Etienne v Montpellier (10.45pm)

Saturday
Monaco v Caen (7pm)
Amiens v Bordeaux (10pm)
Angers v Toulouse (10pm)
Metz v Dijon (10pm)
Nantes v Guingamp (10pm)
Rennes v Lille (10pm)

Sunday
Nice v Strasbourg (5pm)
Troyes v Lyon (7pm)
Marseille v Paris Saint-Germain (11pm)

The years Ramadan fell in May

1987

1954

1921

1888

How to join and use Abu Dhabi’s public libraries

• There are six libraries in Abu Dhabi emirate run by the Department of Culture and Tourism, including one in Al Ain and Al Dhafra.

• Libraries are free to visit and visitors can consult books, use online resources and study there. Most are open from 8am to 8pm on weekdays, closed on Fridays and have variable hours on Saturdays, except for Qasr Al Watan which is open from 10am to 8pm every day.

• In order to borrow books, visitors must join the service by providing a passport photograph, Emirates ID and a refundable deposit of Dh400. Members can borrow five books for three weeks, all of which are renewable up to two times online.

• If users do not wish to pay the fee, they can still use the library’s electronic resources for free by simply registering on the website. Once registered, a username and password is provided, allowing remote access.

• For more information visit the library network's website.

 

 

Sole survivors
  • Cecelia Crocker was on board Northwest Airlines Flight 255 in 1987 when it crashed in Detroit, killing 154 people, including her parents and brother. The plane had hit a light pole on take off
  • George Lamson Jr, from Minnesota, was on a Galaxy Airlines flight that crashed in Reno in 1985, killing 68 people. His entire seat was launched out of the plane
  • Bahia Bakari, then 12, survived when a Yemenia Airways flight crashed near the Comoros in 2009, killing 152. She was found clinging to wreckage after floating in the ocean for 13 hours.
  • Jim Polehinke was the co-pilot and sole survivor of a 2006 Comair flight that crashed in Lexington, Kentucky, killing 49.
Roll%20of%20Honour%2C%20men%E2%80%99s%20domestic%20rugby%20season
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COMPANY PROFILE
Name: Kumulus Water
 
Started: 2021
 
Founders: Iheb Triki and Mohamed Ali Abid
 
Based: Tunisia 
 
Sector: Water technology 
 
Number of staff: 22 
 
Investment raised: $4 million 
SPEC%20SHEET%3A%20APPLE%20M3%20MACBOOK%20AIR%20(13%22)
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GAC GS8 Specs

Engine: 2.0-litre 4cyl turbo

Power: 248hp at 5,200rpm

Torque: 400Nm at 1,750-4,000rpm

Transmission: 8-speed auto

Fuel consumption: 9.1L/100km

On sale: Now

Price: From Dh149,900

The%20specs
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