Adventure Ausrama Blog

The research shows that super-archaic humans migrated from Africa to Eurasia two million years ago (note: Homo erectus is classed as human) . There is nothing special about them. Super-archaic is just a name given to them. Hominins are the line that resulted in us, from the time when the divergence from chimpanzee and bonobo occurred. Super-archaics had a long time out of Africa alone. Well we think that is the case. Much later, between 400,000 and 300,000 years ago another ancient human moved from Africa. Those who went to Europe evolved into Neanderthals, while those moving into Asia became Denisovans. Our ancestors who remained in Africa became Homo sapiens, us. There is a lot of debate and disagreement about when we left Africa. Theories range from 200,000 years ago or even earlier to 60,000 before the present. But it is thought that the early leavers died out - not yet fully proven. When Homo-sapiens met Neanderthals and Denisovans interbreeding took place. However

It seems some scientists fall into the trap of believing they are "all knowing" and they know the truth about things. Professor emeritus William Romoser says he has photographic proof that creatures like bees and reptiles exist on Mars. His areas of specialty are viruses in arthropods, and entomology. He suggests that he can see fossilized remains and living things on the Mars' surface. Just how he can differentiate a fossil from "skeletal' remains in less that perfect low resolution photos is a mystery. His prize "fact' is in a photo of the Mars lander's track. He sees something like an insect. To most people it looks like a stone. Human beings have evolved to put order into what is seen. That is why the ancients saw animals in the stars of the night sky. The propensity to make sense of patterns is called pareidolia. It could be said that it is when scientists take their work home with them. Examining the same animal in the laboratory

Australian scientists are discovering new Species every day. It certainly seems this way. Spiders are on the new knowledge table at the moment. Many have been unknowingly in the Queensland museum for a very long time. The new arachnids are in the Dendrolycosa, Dolomedes, Ornodolomedes, Megadolomedes and Mangromedes genera. They are all spiders of the water. New ones in the Ornodolmedes category are the most beautiful of all. Striking patterns and colors abound. The Queensland Museum Network includes existing collections and field trips by scientists recording discoveries. New kinds of arthropods have been found in all Australian states as well as New Caledonia Naming of recent additions have taken a turn as well. They carry the names of celebrities such Mick Fanning, Jack Nicholson and Professor Brian Greene. Soon there will be Blondie, Boy George or perhaps Kiss. Jokes aside, This is an interesting field. Why are there so many spiders that hunt on the surface of water?

Sudden death in young people has a genetic cause - Long QT syndrome. There is a predilection for some young adults to suddenly die. In a way it is similar to cot death: until now the cause was unknown. The "disease" has been identified and is called Long QT syndrome. A third of sudden "unexplained" deaths in people up to their mid thirties die of heart rhythm complications due to the inherited illness. The heart problem is not always evident in autopsies. Parents can also die of the condition in later life. The faulty gene runs in families and is generally passed on to some offspring. A gene testing study of children having symptoms of heart disease is showing that many carry the gene.  Ongoing monitoring of youngsters is saving lives.  However, there is no official program that tests all children.  Some, of course are not diagnosed early and it is these who are at risk of sudden death.  It is heart breaking for a family to lose a child in this way, ◆ Genetic

More women are moving into academia every year. This is the overall picture. Some areas are still sparsely populated by women. Physics is such a sector of learning. Name a woman physicist - any woman! Few recognise that maths is easier for men, but this is true. There is something about the male hormone that creates this state. Just like women are better at using words. Notably female physics students at the University of Melbourne have admitted that most women do not have the capacity to master physics. There will always be a few exceptions. However, the reality is that generally, women find study in this specialty difficult. Many female students who try physics ultimately end up in chemistry. They do feel more comfortable there. The survey of first year females showed more than 50 per cent had a negative outlook of their chances of succeeding. This makes one wonder why they are in the course. However, some were studying physics as a requirement of other degree

There has been differences in views on sleep for decades. Some say a good nights sleep is absolutely necessary to function well in the world. Others believe that sleeping is a waste of valuable time when one could be creating new things. More time could be made available if sleep was postponed indefinitely. However, there is a question as to whether performance is impaired. Then creativity could be replaced by nuisance behavior - someone who is just a pest to well functioning individuals around him or her. Research points to sleep being required for efficient functioning. We have evolved with roughly 12 hours of darkness each day. A century or so ago people went to bed early, before electricity grids changed all our lives. Most animals still head for cover when the sun goes down. Particular animals evolved to be active at night, hunting for food. Even these though sleep in daylight hours. An Oregon study has shown that the elderly function better if they get a m

There is a reason more women are not in high income occupations. Let's face it the truth is the truth - most women do not have a mathematical mind. It is based on evolution where women developed social skills to collect berries and tubers. Men on the other hand had to hunt dangerous large animals and this needed calculating brains. Even today the sexes express their differences. More men choose university degrees in maths, engineering, technology and science. This where big money is earned. Humanities degrees especially the common or garden Bachelor of Arts will leave you in the unemployment line. Australians generally persist in studying for a BA despite all the statistics showing how weak this honor is. They know it is easy to get, but the easy way is not the best and more rational way. Just choosing a non-humanities degree is not that easy for females. A few have extremely good mathematical skills. They are at least equal to men. Most do not have the ment

Students from overseas are saving Australia's tertiary education system. This is particularly true for postgraduate degrees. Most Australians attend a social science postgraduate course. This is despite the fact that these pieces of paper are virtually worthless in getting a job in today's world. Modern economies need IT, management, commerce, science, engineering, architecture and agriculture postgraduates. Doing maths and science at high school is the key but Australian students avoid these. This is due to the poor organization of subjects. Some states have no less than five grades of maths choices. There should be compulsory broad based maths despite failures along the way. Avoiding the difficult is not the way to go. We have teachers who are only qualified in social sciences teaching maths and science because there are too few fully-educated technical teachers. This is despite the fact that there is an oversupply of teachers generally. Foreign students

Treating the effect as the cause is wasting valuable time in finding a cure for cancer. A Study found that depressed people lived shorter lives when they had cancer. Depression per se and lack of hope, optimism and anxiety were tested. Those suffering from these "attributes" didn't live as long as "optimists" who were also cancer sufferers. A great leap of faith was made to claim that mood sufferers did not seek second opinions on cancer. Note that this was not proven it was just surmised. Overall findings were that optimism did not lead to better survival in people with cancer. Well this is game. set and match. You can't have it both ways. Either being optimistic improves survival or it doesn't. There is no doubt that psychological treatment improves the well being of cancer patients, but let's not get ahead of ourselves and say optimistic cancer sufferers live longer. A great deal of money is set aside for medical research. We have to be caref

Claims about consuming certain things to improve health are way off beam. Every now and then supposed new research shows that if you eat this or don't eat that your health will improve. Years late we discover that the "experts' were totally wrong and your health was actually damaged. This happened with margarine, milk, eggs and so on. What is the latest? Well, apparently drinking up to three cups of coffee or tea each day reduces the risk of getting diabetes. Look around. Do you see people who drink these beverages regularly with diabetes? You sure do. There are thousands of them. The University of Sydney says “If such beneficial effects were observed in interventional trials to be real, the implications for the millions of individuals who have diabetes mellitus, or who are at future risk of developing it, would be substantial.” Their trials must be wrong. Surely millions of regular drinkers who have diabetes are thinking, "Why me? Why have I got the disease&qu

It seems the level of intelligence is determined by a few genes.  This must surely be too simplistic, particularly because specialists cannot agree on what intelligence is.  How do you compare memorizing general knowledge to the skill of knitting a fine jumper?  There are people who know just about everything about Australian rugby league, but this is their only area of expertise. Finding will be made easier, apparently, by questioning the crowd rather that by brain scans, etc.  It is believed that the sought after genes affect brain size.  Considering that Neanderthals had larger brains than modern man, this seems to be the wrong hypothesis to start with. While "the team" is sure they will find the genes they do admit that culture, education, health and upbringing can affect intelligence.  How are they going to filter these things out?  Obviously they can't.  Twenty one thousand subjects were catalogued and brain imaging was used.  Strangely, when the team was r

Despite the widespread use of computers, Australia is not producing enough qualified computer specialists. Although the computer related economy is equal to mining, and the extractive industry is what is driving the Australian economy and keeping the dollar strong, too few young people are willing to study for employment in the digital industry. This is probably because everyone is a little computer "savvy" and most believe that there is not much more to learn. Of course this is a mistake. You may have a website and know a trick or two, but there is a barrier that you cannot jump over if you are to truly understand the whole area, unless you are a born computer geek where you soak up all the knowledge like a sponge. What academics fail to understand though is that computer study is very much like learning mathematics. Students are avoiding maths like the "plague" because there are much easier subjects to do. For example, English and History teachers are a

Despite claims that growing crops for fuel is pushing up food prices the University of Queensland and Carolina's Clemsen University have signed an agreement to develop biofuels. The work will revolve around transforming sugar cane residue into fuel using algae. A pilot plant is to be built in Queensland. More research on cellulosic monomer conversion will be done. Clemsen University has concentrated on converting sorghum and switchgrass into ethanol. A new base called loblolly pine is also being examined. This combined project will benefit both institutions. Pooling funding and resources will speed up projects. Despite possible drawbacks of biofuel it is intended to seek further funding and press on with research. http://www.adventure--australia.blogspot.com/ http://www.tysaustralia.blogspot.com/ http://www.feeds.feedburner.com/AdventureAustralia http://www.technorati.com/blogs/ http://adventure--australia.blogspot.com . . . . . . . . . . . . . . . . . . Sci

For many years it was believed that pork was fatty and if eaten regularly would lead to weight gain. A new study has shown the opposite to be true. Overweight people were split into two groups. One group was given 1050g of lean pork each week. The other group was provided with 750g a week. Even with this little difference in pork intake, after six months there was a noticeable change in the high-intake group. Those eating more pork actually lost fat from their abdomens. Waists were narrower. Body composition improved over the whole body. So weight can be lost without dieting if you eat more pork. A further benefit from eating more pork is the high thiamine level. Many overweight people have type 2 diabetes which can lead to thiamine deficiency. Tests are now being done with chicken and beef to compare with pork. It could be that the high-protein diet due to eating the pork was beneficial. Maybe similar results in regard to weight loss will eventuate from eating more chicken

Dark energy is no longer theory it is fact. Evidence from 200,000 galaxies confirms the hypothesis that dark energy is pulling the universe apart. It is a constant in that it pushes uniformally causing steady expansion of the universe. Einstein was correct after all. He said there was a force pushing out stopping the universe from collapsing. This was known as "Einstein's biggest blunder'. He had to enter something into an equation which stopped the universe from collapsing. Though he didn't use the term "dark energy", this was the force he was talking about. He was wrong about the universe being static but he quickly revised his ideas when Edwin Hubble found that the universe was expanding. Gravity is no longer accepted as the force driving the universe apart. Gravity cannot push and pull at the same time. Calculations show that dark energy makes up 74 per cent of the universe. Dark energy is not he same as dark matter. There is 22 per cent of dark