Fillet is the best cut. Trust me. It’s worth the money.
Use molecular gastronomy to take advantage of decades of researching how meat changes with heat. Science indicates that the best cooking temperature is around 55˚C, and definitely not above 60˚C. At a high temperature, myofibrillar (hold 80% of water) and collagen (hold beef together) proteins shrink. Shrinking leads to water loss. In the water lies the flavour.
To cook the fillet use a technique called sous vide. It involves vacuum wrapping the beef and keeping it at 55˚C in a water bath for 24–72 hours. This breaks down the proteins without over heating. The beef becomes tender but retains flavour and juiciness.
Take the beef out. It will look unpalatable. Quickly fry it on high heat on both sides to brown it. The high heat triggers the reduction of proteins or the Maillard reaction. Enjoy with a glass of your favourite red.
Aluminium alloys have a low density and are easy to make. These qualities make them popular in the transport industry which can range from cars to planes. A low density makes them perfect to reduce weight in large metal structures. Unfortunately due to poor wear resistance, aluminium alloys can deteriorate quickly which severely limits their applications.
Dr Clayton D’Amato (supervised by Dr John C. Betts and Dr Joseph Buhagiar) modified the surface of an aluminium alloy (called A356) to overcome such limitations by improving wear resistance. D’Amato used a high power industrial CO2 laser to rapidly melt specific regions of the alloy’s surface. He simultaneously introduced additional alloying elements in the melt pool, which mix with the base metal to form new compounds that reinforce the soft aluminium surface. In this way, he formed a strong composite modified surface. Additional experimentation allowed D’Amato to reduce the loss of material due to wear by about 20 times. He optimised the conditions needed to laser process the surface of the aluminium in a uniform and repeatable manner. Adding nickel increased surface hardness 7-fold due to formation of aluminium-nickel compounds. Additional strength was achieved by adding hard ceramics to this aluminium-nickel structure. D’Amato created fine titanium carbide (TiC) particles in a matrix structure (pictured) by alloying a mixture of nickel, titanium and carbon (Ni-Ti-C). Aluminium treated in this way was much stronger.
The exact hardness was related to the mix of alloying elements in the modified surfaces. Hardness improved wear resistance, with large improvements in both surfaces alloyed with nickel and Ni-Ti-C. They lost 20 times less material than normal aluminium preventing severe damage.
Using a high powered laser allows improved wear resistance just where needed. This saves costs and increases versatility. The above technique could be used to manufacture aircraft pump parts, fittings and control parts, and in automotive water-cooled cylinder blocks.
This research was performed as part of a Ph.D. in Engineering within the Faculty of Engineering at the University of Malta. It was partially funded by the Strategic Educational Pathways Scholarship (Malta). This Scholarship is part-financed by the European Union —European Social Fund (ESF) under Operational Programme II—Cohesion Policy 2007–2013, “Empowering People for More Jobs and a Better Quality Of Life”. The laser processing equipment used in this project was financed by the 4th Italian protocol whilst the characterisation equipment was financed by the European Regional Fund (ERDF) through the project “Developing an Interdisciplinary Material Testing and Rapid Prototyping R&D Facility (Ref. no. 012)”.
Would you like to learn about how the cosmos works? Why it relates to our society? In short, how quantum physics can change your life? Then read The Universe Within by Neil Turok.
The laws of mathematics and physics rule our Universe. Neil Turok does not shy away from showing a few equations then devoting pages to what they mean, so you might need to come equipped with some basic mathematical skills.
The Universe Within is yet another astrophysics/quantum physics book talking about our amazing and wonderful Universe. It uses the typical formula of talking about the usual heavyweights like Einstein and Newton amongst others. However, Turok surprises by talking about oft glossed over scientists namely from the Scottish Enlightenment. At the turn of the 18th century, Scotland proved the unlikely source of leading intellectuals such as Adam Smith (who invented capitalism), David Hume (revolutionised philosophical thought), and James Watt (invented the steam engine). Turok also focuses on the achievements of Michael Faraday and James Clerk Maxwell (responsible for finding out the relation between electricity and magnetism, which drives devices from electrical generators to wireless chargers).
Turok loves science. This drive leads to some great moments in the book. He has one of the most beautiful descriptions of the Big Bang, space-time, and Einstein’s E=mc2—you might finally understand them all. He has a nice style if uneven. At times, he falters by being too academic and using overly complicated analogies.
The scientific idea behind the whole book is his explanation to take the Universe into the quantum domain. He sees the Universe as having existed before the Big Bang and that it will exist past the following Big Bang. ‘There was no beginning of time nor will there be an end: the Universe is eternal.’
“He sees the Universe as having existed before the Big Bang and that it will exist past the following Big Bang”
Through this book Neil comes across as an enlightened man. One of his predictions sees the next Einstein arise from Africa. This continent is full of untapped potential and has enough problems to fill all the issues of THINK a few times over. To solve them you need scientists and skilled people. With this in mind he helped set up the African Institute for Mathematical Sciences—a true visionary, who had to flee South Africa due to his parents’ role in trying to bring down British apartheid.
Turok also knows his philosophy. In the beginning, he links Einstein’s thoughts to Hume. Towards the end of the book more philosophical questions arise. This is one of my favourite parts of the book, till he strangely asks: might we be the means for the Universe to gain a consciousness for itself? He also sees quantum physics as a role model for society, and manages to sneak in how quantum computers will evolve with humans making some form of hybrid species.
The author has a good heart. His ideas about the skills today’s children need, how scientists are human, and the meaning of life are beautiful. He also hits the nail on the head when writing, ‘politicians tend to think no further than the next election, scientists no further than the next grant’. This book is worth a read, and if you don’t understand it you’ll definitely look clever having it on your coffee table.
Roderick Micallef has a long family history within the construction industry. He coupled this passion with a fascination with science when reading for an undergraduate degree in Biology and Chemistry (University of Malta). To satisfy both loves, he studied the chemical makeup and physical characteristics of Malta’s Globigerina Limestone.
Micallef (supervised by Dr Daniel Vella and Prof. Alfred Vella) evaluated how fire or heat chemically change limestone. Stone heated between 150˚C and 450˚C developed a red colour. Yellow coloured iron (III) minerals such as goethite (FeOOH) had been dehydrated to red coloured hematite (Fe2O3). If the stone was heated above 450˚C it calcified leading to a white colour. This colour change can help a forensic fire investigator quickly figure out the temperature a stone was exposed to in a fire—an essential clue on the fire’s nature.
While conducting this research, Micallef came across an Italian study that had concluded that different strains of heterotrophic bacteria can consolidate concrete and stone. Locally, Dr Gabrielle Zammit had shown that this process was happening on ancient limestone surfaces (Zammit et al., 2011). These bacteria have the potential to act as bio-consolidants and Micallef wanted to study if they could be used to reinforce the natural properties of local limestone and protect against weathering.
Such a study is crucial in a day and age where the impact of man on our natural environment is becoming central to scientific research. The routine application of conventional chemical consolidants to stone poses an environmental threat through the release of both soluble salt by-products and peeled shallow hard crusts caused by incomplete binding of stone particles. Natural bio-consolidation could prove to be an efficient solution for local application and is especially important since Globigerina Limestone is our only natural resource.
This research is part of an Master of Science in Cross-Disciplinary Science at the Faculty of Science of the University of Malta, supervised by microbiologist Dr Gabrielle Zammit, and chemists Dr Daniel Vella and Prof. Emmanuel Sinagra. The research project is funded by the Master it! Scholarship scheme, which is part-funded by the EU’s European Social Fund under Operational Programme II—Cohesion Policy 2007–2013.
Malta has around 220 beekeepers over just 316 km2. The country’s name is tied to honey that has been prized for its flavour and health benefits. Local researchers are finding out just how unique it is and some of its powerful properties.Continue reading
Growing up on the small island of Gozo, it was inevitable that the sea would exert a powerful influence on me. As a child I never tired of the sea, swimming, cooling off and floating on it in little boats. As I grew older, I came to see the sea as more than just a pretty playground. ‘Where do waves come from?’ ‘What generates sea currents?’ ‘How can I surf a wave?’ Were some questions that aroused my curiosity and motivated me to study the oceans, and eventually to choose to study physical oceanography and fluid dynamics.
Before commencing this journey, I read a B.Sc. (Hons) in Mathematics and Physics (University of Malta), graduating in 2008. Afterwards, I read an M.Sc. in Physical Oceanography, pursuing this qualification while working at the International Ocean Institute — Malta Operational Centre (IOI-MOC, University of Malta). One of the most interesting aspects of my research was studying storm surges around the Maltese Islands. The aim was to develop components to forecast variations in sea level around Malta.
In 2011, I was offered a scholarship at the School of Environmental and Industrial Fluid Mechanics (University of Trieste) in Italy. My Ph.D. research focused on the numerical modelling (Large Eddy Simulation) of coastal areas, in particular, the Barcelona harbour in Spain and the Bay of Taranto in Italy. My objective was to simulate the turbulent water mixing in the ports in order to understand the sea currents and circulation within the bays and thereby to quantify the water renewal within the basins.
Trieste, characterised by the bracing air of the famous Bora wind and by its splendid views of the Adriatic Sea, hosts many world renowned institutions and international organisations. Living in such a ‘city of science’ has allowed me to meet many celebrated scientists at seminars, workshops, and scientific conferences.
Through video conferencing I deliver a weekly physics study unit in Fluid Mechanics at the University of Malta. I am pleased that the beautiful blue Mediterranean waters are still motivating other Maltese students.
My interest in the sea has brought me a long way, not only academically but by experiencing new cultures and indulging my love of cycling along the karst (garigue) coastline.
But I remain at heart that same boy with a love of the sea. I look forward to climbing aboard my trusty kayak, revelling in the ebb and thrust of the rolling waves to continue exploring the rugged coastline of my beloved Gozo.
I chose to study Chemistry and Physics simply because they were the subjects I enjoyed most, so I enrolled on a B.Sc. (Hons) degree at the University of Malta without having a clear idea about what I would be doing once the four years are over. I was not the best brain in the class but in 2004 I graduated with a 2:1 grade and it was quite obvious that I needed a plan. A couple of opportunities to embark on a Ph.D. in Britain came along through local contacts and applications on jobs websites. Despite not knowing much about the subject, I decided to go with the Ph.D. at Exeter University because it was about Nuclear Magnetic Resonance, a subject that sits right on the verge of Chemistry and Physics.
Obviously the idea of moving abroad, living away from my parents and starting this amazing new adventure was incredibly exciting. From the start of my Ph.D. things went incredibly well, it was immediately obvious that I was much better at doing research than studying for exams. I started with looking into dynamics in solid materials on the microsecond timescale, which is the less studied type of motion. It bridges the gap between very fast (spin-lattice relaxation motions, nanosecond) and slow (millisecond to second) timescales. I published my first scientific paper a year into my Ph.D., and five more followed by the time I defended my thesis.
Because of the contacts I built during my Ph.D. as soon as I finished I was offered a post at University College London, Institute of Child Health, working as a research fellow in renal imaging. I carry out research at Great Ormond Street Children’s Hospital using novel non-invasive Magnetic Resonance Imaging (MRI) techniques. I work mainly with children requiring a kidney transplant. The aim of my work is to eventually be able to furnish doctors with information about their patients, which is currently either unavailable to them or they can only get through invasive clinical techniques such as biopsies. My work here has produced six peer-reviewed papers and I am currently working on a few more.
The research I carried out during my Ph.D. involved dealing with basic scientific concepts like Quantum Mechanics — that studies sub-atomic phenomena — and I was at liberty to experiment as I saw fit, which I enjoyed. However, despite being much more restrictive, I find clinical research extremely rewarding. Coming face to face with the people benefiting from all your hard work is really priceless.
Just after my Ph.D. I married my husband. We are now very proud parents of a two-year-old son. Any working mum would tell you that raising a family while maintaining a career is not easy, but I believe that if you like your job enough, combing the two is very worthwhile. Obviously research does not wait for anyone, and luckily for me, having colleagues that supported me meant that I was able to carry on publishing while I was on maternity leave.
Research — that would be the simplest way to answer the question above. Really and truly this answer would only apply to a small niche of individuals throughout the world.
It is a big challenge to explain to people what you do with a science university degree. The questions “Int għal tabib?” (Are you aiming to become a doctor?) or “Issa x’issir, spiżjar?” (Will you become a pharmacist?) are usually the responses. The thing is, people have trouble understanding non-vocational careers — if you are not becoming a lawyer, an accountant, a doctor or a priest, the concept of your job prospects is quite difficult to grasp for the average Joe.
In truth, it is not really 100% Joe Public’s fault — research is a tough concept to come to terms with, ask a good portion of Ph.D. students about that. There seems to be a lack of clarity in people’s minds about what goes on behind the scenes. If you boil it down, everything we use in our daily lives from mobile phones to hand warmers are the spoils of research — a laborious process with the ultimate goal of increasing our knowledge and, consequently, the utility of our surroundings.
“People need to stop feeling threatened by big words and abstract concepts they cannot grasp”
So, then, why exactly is it such an alien concept? I think the reason is that research is very slow and sometimes very abstract. Gone are the days when a simple experiment meant a novel, ground-breaking discovery — research nowadays delves into highly advanced topics, building on past knowledge to add a little bit more. I have complained about this to many of my colleagues on several occasions — and it is more complicated when you are studying something like Chemistry and Physics, or worse, Maths and Statistics — people just do not get it!
Research is exciting. The challenge is how to infect others with this enthusiasm without coming off as someone without a hint of a social life (just ask my girlfriend). It is nice to see initiatives like the RIDT and Think magazine trying hard to get the message out there that research is a continuous process with often few short-term gains. It can be surprising when you realise how much is really going on at our University, despite its size and budget.
To befriend the general public researchers still need to do more. The first step is relaying the message in the simplest terms possible — people need to stop feeling threatened by big words and abstract concepts they cannot grasp. There also needs to be increased opportunities for interaction with research — Science in the City is the perfect example. Finally, I think MCST needs to start playing a larger role — it must work closer to University and take a more coordinated role at a national level. Only then can we begin to explain what us researchers do.
Producing Food products, pharmaceuticals, and fine chemicals leads to hazardous waste and poses environmental and health risks. For over 20 years, green chemists have been attempting to transform the chemical industries by designing inherently safer and cleaner processes. Continue reading
Research — that would be the simplest way to answer the question above. Really and truly this answer would only apply to a small niche of individuals throughout the world.