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NASA reveals why you’ll lose weight in Sri Lanka
Weight gain is a common complaint of holidaymakers. According to Nasa choosing a different destination could make a difference in how much you weigh.Scientists have recently discovered the reason why travellers to Sri Lanka are lighter, whereas you’ll gain weight in Turkey. It’s not the baklava.
Since the 1960s Nasa has known that gravity does not affect the globe evenly, with ‘anomalies’ in the weight of objects travelling from one location to another.Though those hoping to shed might be disappointed.
A traveller weighing 68kg in New Zealand could lose up to 3g when in the Maldives or Canada’s Hudson Bay, where there are areas of lower relative-gravity. The difference is not massive, around 1/25,000 of your bodyweight, but it’s a start.
What it does tell us is that the makeup of the planet is very different under foot, affecting the weight and gravitational force on the surface.Satellites from Nasa’s GRACE mission (Gravity Recovery and Climate Experiment) have been mapping the differences for years. While ocean measuring stations have suggested there is a difference the use of satellite imaging to measure water density has allowed Nasa to build high definition of gravity.
The lowest gravity on the planet is found at the southern tip of Sri Lanka and parts of the Indian Ocean east of the Maldives. North Canada around the Hudson Bay area is also an area of low gravity.The difference is thought to be down to the thickness of the Earth’s crust and the volume of molten rock and magma, beneath the surface.
“The Canadian anomaly has been known for a long time,” said Dan Britt, director of the Center for Lunar and Asteroid Surface Science. The physicist from the University of Florida told the Daily Mail, it is now thought that the changes came about during the last Ice Age when enormous glaciers pressed down on the Earth’s surface.
He described it like squishing a jam sandwich, the thick ice sheets deformed the crust, pushing the fluid to the edges.
“A couple of miles of ice is heavy enough to depress the crust,” said Britt.
Elsewhere ‘heavy’ spots can be explained by currents in molten rock, or magma, and convection currents in superheated bubbling lava.
The strongest gravity earth is located around Bolivia and the northern Andes, where relative gravity represents around 50 additional milligals. Here you’ll be around 1/19613th heavier than at 1 standard gravity.
Objects are also slightly heavier around the poles and around the fault lines of the Pacific. There is an area of increased weight at the top of New Zealand’s North Island following the Kermadec Trench.
The distribution of gravity is slowly changing as the fluid magma redistributes and continental plates shift. Since the launch of the GRACE and GRACE-FO (follow on) satellites in 2018, Nasa has been mapping the slow change, by measuring surface water.
Measuring “the amount of water in large lakes and rivers, as well as changes in sea level and ocean currents provides an integrated global view of how Earth’s water cycle and energy balance are evolving”, says the Nasa GRACE mission.
Rather than helping weight watchers plan their holidays, there are bigger implications of gravitational anomalies on surface water which compound climate changes.(New Zealand Herald)
Latest News
627 confirmed dead, 190 persons missing as at 6:00 a.m. today [08]
The Situation Report issued by the Disaster Management Center at 0600hrs on 8th December 3035 confirms that 627 persons have lost their lives due to floods and landslide that occurred in the island during the past few days. The number of persons missing was 190.
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Showers expected in the Northern, North-Central, Eastern and Uva provinces and Batticaloa and Ampara districts
WEATHER FORECAST FOR 08 DECEMBER 2025
Issued at 05.30 a.m. on 08 December 2025 by the Department of Meteorology
The Northeast monsoon conditions are gradually establishing over the island. Showery weather condition is expected to enhance over the Northern, North-central and Eastern provinces from tonight.
Misty conditions can be expected at some places in the Western, Sabaragamuwa, Central and Uva provinces during the early hours of the morning.
Showers will occur at times in the Northern, North-Central, Eastern and Uva provinces. Fairly heavy showers above 50 mm are likely at some places in the Batticaloa and Ampara districts.
Showers or thundershowers may occur at several places in other areas of the island after 1.00 p.m.
The general public is kindly requested to take adequate precautions to minimize damages caused by temporary localized strong winds and lightning during thundershowers.
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New landslide alerts as Ditwah aftermath worsens
Death toll hits 627, over 2.17 mn affected across 25 districts
The Disaster Management Centre (DMC) has issued fresh landslide warnings as relentless heavy rains continue to pound regions still reeling from Cyclone Ditwah.
The Department of Meteorology has cautioned that thunderstorms accompanied by heavy rainfall are likely across parts of the Western and Sabaragamuwa provinces, as well as Galle and Matara districts. Rainfall is expected to intensify further on the 9th, 10th, and 11th of this month.
Authorities urged the public to stay indoors in safe buildings or vehicles and avoid open areas such as coconut and tea plantations, playgrounds, and reservoirs, during adverse weather events. The public has also been advised against using fixed-line phones, electrical appliances, and open vehicles like bicycles, tractors, and boats due to the risk of lightning strikes and strong winds.
With the northeast monsoon gradually intensifying, occasional rains are also expected in the Northern, North Central, Eastern, and Uva provinces, with some areas of the Batticaloa district expected to receive up to 75 mm of rainfall. Misty conditions may affect parts of the Western, Sabaragamuwa, Central, and Uva provinces during early mornings.
The DMC has said the floods and landslides, triggered by Cyclone Ditwah, have so far claimed 627 lives, with 190 people still missing. More than 2.17 million people, across 25 districts, have been affected, including 611,530 families. A total of 4,517 houses have been destroyed, and 76,066 partially damaged, leaving over 80,500 homes affected, nationwide.
Kandy is the hardest hit District, recording 232 deaths, 81 missing persons, 1,800 fully destroyed houses, and over 13,000 partially damaged homes. Puttalam and Kurunegala reported 573 and 480 fully destroyed houses, respectively, while Kegalle, Ratnapura, Badulla, and Gampaha also suffered extensive property losses.
Authorities have set up 956 safety centres across the country, currently sheltering 27,663 families, totaling 89,857 people. Relief and rehabilitation efforts are ongoing, with priority given to food, water, and medical aid. Officials warned residents in landslide-prone areas to remain in shelters until conditions stabilise.
by Chaminda Silva
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