Expert considers dark matter

first_imgTheoretical particle physicist Patrick Fox from Fermilab served as the keynote speaker for a physics department colloquium that focused on evidence for dark matter’s existence and the means by which the scientific community could learn more about its properties in the future.“I’m a theorist in particular,” Fox said. “I am beyond the standard model theorist, so my day-to-day job is to think up extensions of the standard model that experiments can look for, or if experimenters have seen things that don’t make sense, I can try to interpret it and build models that explain those observations.”Fox said the standard model remains a powerful tool that explains most natural phenomena by defining the elementary particles of matter, but it is far from perfect or all-encompassing. Although this model explains things observed at the sub-nuclear level, Fox said these particles should all be massless, a very different world from the one present.Emmet Farnan | The Observer “There’s an explanation for that problem,” he said. “There’s a particle that is responsible for giving the other particles their mass, and that is the Higgs-Boson particle. The Higgs Boson was the last piece of the Standard Model to be discovered, and with it’s discovery, all the phenomenon in the natural world could seemingly be explained.”Even after the discovery of the Higgs-Boson particle, Fox said a lot of exciting physics remains to be done, such as research on the mysterious dark sector.“We like to think we’re doing a good job of explaining the phenomenon that can be observed,” he said. “It turns out, once you dig into it, that we can only explain roughly 5 percent of everything.“This other 95 percent is broken up into two categories. There’s stuff that behaves with respect to gravity just like the matter that makes up you and me, known as dark matter, and then there’s dark energy, which is very different than matter and dark matter in that it is not affected by gravity. Dark energy is what’s responsible for the expansion of the universe speeding up.”Fox said the explanation for dark matter’s mysterious name is intuitive in comparison to the rest of the dark sector.“Dark matter gravitates and attracts matter in the same way that you or I do, but more importantly, they don’t feel the affects of photons,” he said. “Light does not reflect off them, and dark matter and photons do not interact.”Although dark matter certainly exists, Fox said modern physicists still have questions to answer.“We know that everyone in this room is made out of matter and not antimatter, but the laws that govern the standard model are symmetric,” he said. “If you replaced everything in this room with antimatter, it would behave in exactly the same way. We don’t know why there’s only matter inside us and zero antimatter.”The evidence for and against explanations of dark matter can be confusing, and Fox said this means it’s time to start working to make the evidence more consistent.“Dark matter is one thing we know for sure that is not explained by the standard model, but we know for sure it’s out there,” he said. “We don’t know more than that, but we have some good ideas that we are working on to try and squeeze all the information out of all the avenues of attack that we have.“There have been a lot of recent advances both on the theoretical front and the experimental front. The coming decade will be a very exciting time for particle physics.”Tags: dark matter, Fermilab, Higgs-Boson, Patrick Fox, physics colloquiumlast_img read more

ASEAN quickly turning to renewable energy hub

first_img FacebookTwitterLinkedInEmailPrint分享The Asean Post: Technological innovations and favourable government policies are among the four trends expected to drive Southeast Asia’s transition to renewable energy in the coming years. A report published by global auditing firm KPMG titled ‘The Renewable Energy Transition’ noted that while there are still 70 million ASEAN citizens without access to reliable electricity, the potential for renewable energy is huge in those markets and governments are increasingly turning to solar and wind energy to address the issue.Consumers driving the green agenda forward and the entry of new funds into the ASEAN renewable energy market are two other trends identified in the report.Each of ASEAN’s 10 members have set targets for renewable energy, and technological innovations, such as better solar power efficiency and floating solar panels, mean that renewable energy is now more accessible than ever before.The establishment of RE100 in 2014 – a collaborative, global initiative uniting more than 100 influential businesses committed to 100 percent renewable energy – is a prime example of how consumers are helping to boost demand for renewable energy, especially since commerce and industry use up two thirds of the world’s electricity. Among the companies in the group include Google, Microsoft, Coca Cola and IKEA – all of which have a strong presence in ASEAN.The World Bank, Asian Development Bank (ADB) and Japan Bank for International Cooperation are leading the way in renewable energy investment in the region, which has helped to bring prices down. While prices have often been a key concern, falling costs and rising demand are now helping to push the industry forward.The Institute for Energy Economics and Financial Analysis (IEEFA) released a report in August 2018 which showed that the Philippines – where an estimated 20 million people lack constant electricity supply and 12 million have none at all –  can reduce its electricity costs to just 2.50 Philippine pesos (US$0.05) per kilowatt-hour (kWh) by installing rooftop solar. By comparison, diesel costs 15 Philippine pesos (US$0.28) per kWh and coal costs 3.8 Philippine pesos (US$0.07) per kWh.“Solar, wind, run-of-river hydro, geothermal, biogas, and storage are competitive, viable domestic options that can be combined to create a cheaper, more diverse and secure energy system,” said Sara Jane Ahmed, an IEEFA energy finance analyst and the author of the report.With its huge potential in renewable energy, ASEAN can be the new hub for renewable energy deployment, innovation and investments.More: ASEAN quickly turning to renewable energy hub ASEAN quickly turning to renewable energy hublast_img read more

CHAN: Yusuf Picks Ezenwa, Odey, 18 others to Tackle Squirrels

first_imgCoach Salisu Yusuf has opted for goalkeeper Ikechukwu Ezenwa, defenders Orji Kalu and Osas Okoro, midfielders Alhassan Ibrahim and Ifeanyi Ifeanyi, forwards Stephen Odey and Ifeanyi George, and 13 other players for Sunday’s 2018 African Nations Championship qualifying match away to Benin Republic.There are also goalkeeper Dele Ajiboye, defender Chima Akas, midfielder Rabiu Ali and forward Thomas Zenke.Goalkeeper Theophilus Afelokhai, defenders Ariwachukwu Emmanuel, Stephen Eze and Nasiru Sani, midfielders Hafiz Aremu, Raphael Ayagwa and Samuel Mathias and forwards Sikiru Olatubosun and Kingsley Eduwo complete the list of the playing body that will arrive Lagos from Kano today and then make the short trip to Cotonou by road same day. The Confederation of African Football (CAF) has appointed Algerian referee Mustapha Ghorbal to take charge of proceedings at the Stade de l’Amitie on Sunday, starting from 4pm.He will be assisted by compatriots Mokrane Gourari (Assistant Referee 1), Mohammed Serradj (Assistant Referee 2) and Said Aquina (Reserve Referee).After Nigeria failed to reach the finals of the first two editions of the competition exclusively reserved for footballers plying their trade in their countries’ domestic Leagues, the home-based Eagles won the bronze medals at the third edition in 2014. They however could not make the knock-out stage at the fourth edition in Rwanda early last year.The return leg will hold at the Sani Abacha Stadium, Kano on Saturday, 19th August, with the winner qualifying for the 5th African Nations Championship scheduled for Kenya early next year.INVITED HOME-BASED EAGLESGOALKEEPERS: Ikechukwu Ezenwa (FC IfeanyiUbah); Theophilus Afelokhai (Enyimba FC); Dele Ajiboye (Plateau United)DEFENDERS: Orji Kalu (Rangers International); Stephen Eze (FC IfeanyiUbah); Ariwachukwu Emmanuel (Akwa United); Chima Akas (Enyimba FC); Nasiru Sani (Katsina United); Osas Okoro (Rangers International)MIDFIELDERS: Hafiz Aremu (Akwa United); Raphael Ayagwa (Lobi Stars); Ifeanyi Ifeanyi (Akwa United); Rabiu Ali (Kano Pillars); Samuel Mathias (El-Kanemi Warriors); Alhassan Ibrahim (Akwa United)FORWARDS: Sikiru Olatubosun (MFM FC); Thomas Zenke (Nasarawa United); Stephen Odey (MFM FC); Kingsley Eduwo (Lobi Stars); Ifeanyi George (Rangers International)Share this:FacebookRedditTwitterPrintPinterestEmailWhatsAppSkypeLinkedInTumblrPocketTelegramlast_img read more