- Boland back for Brisbane
- Stolen passports
- Michael Jackson's lovechild?
- Brisbane markets lend a hand
- LIVE NRL returns to 4BC
- Siege: Police injured
- Cate Blanchett wins
- Qantas plane collision
- RSS Syndicate this blog (XML)
What we're talking about
- marty on LIVE NRL returns to 4BC Great to see the call team back, sack the idiot who took it off, l stopped listening on the weekend, now l'm back , ... more
- James W on "Oh, Where's the feeling?" David T, Toyota were quite prepared to pull the pin, ,and they have, so why would they yield to blackmailing attempts? Ian ... more
- Vicki Franklin on Brisbane markets lend a hand Thank you for the team from Brisbane Markets, Lindsay Transport and all associated wholesalers,growers and drivers who ... more
- Peter on Calls for Island bridge I feel the non resident rate payers are already paying for the bridge when my rates are 50% more with no services than my ... more
- Kim on LIVE NRL returns to 4BC Shame that Fatty & John Gibbs aren't on anymore. At least they talked football & not the garbage the Continuous Call Team ... more
- David T. on "Oh, Where's the feeling?" James, are you familiar with the concept of Union blackmail? That is the reason Toyota initially agreed to the exhorbitant ... more
- Wazza on NRL Broadcast Petition Thank God sense has prevailed and the continuous call team is back on 4BC for 2014 at least. Whomever made the decision to ... more
- http://wiki.8bitklubben.dk on LIVE NRL returns to 4BC Apprecciate this post. Lett me try it out. more
- Graeme on LIVE NRL returns to 4BC Good move. Hopefully the person who made the decision to drop the coverage last year has been sacked.G4F6W7 more
- Anthony on LIVE NRL returns to 4BC Good one 4BC. Saves me having to stream it this year. A good management decision. Congrats more
- bil gilmourl on LIVE NRL returns to 4BC Goodon you 4bc. Almost gave 4bc away and was listening to 2gb on internet radio. Great call with ray hadley and the gang, ... more
- joseph on LIVE NRL returns to 4BC Thanks 4BC - a great decision - I'll be listening to 4BC all weekend from now on! more
- marion j heiman on David Hobson: Bang Bang can some one tell me the name of Mr. Hobson's newest album...something about a red rose? is it available in the U.S.? He is ... more
- William Sheehan on LIVE NRL returns to 4BC Very please to hear that the Continuous Call Team have returned to the Big BC, I can now leave the computer on weekends more
- James Styles on LIVE NRL returns to 4BC Having Distant Relatives Living in Queensland means that i have 4BC to Thank for Returning Rugby League to the Airwaves. more
- lee on Schapelle Corby, released weather evidence was produced or withheld,she was found guilty by indonesian law.she paid the price and now is free,on ... more
- harry on LIVE NRL returns to 4BC thank you 4bc for the return of the big man show.now,it"s up to the broncs,titans and cowboys to deliver the goods for us ... more
- James W on Qantas plane collision Guess who's at the top of the company's hit list? more
- James W on LIVE NRL returns to 4BC Sweet more
- Dave Witham on LIVE NRL returns to 4BC YES,YES,YES, Finally a great decision from 4BC . Bring on the big mun !!!!!!!!! more
Caveman, advanced thinkers
Paleontologists say they have found small blades in a South African cave proving that man was an advanced thinker making stone tools 71,000 years ago - millennia earlier than thought.
The find suggests early humans from Africa had a capacity for complex thought and weapons production that gave them a distinct evolutionary advantage over Neanderthals, say the authors of a study published in Nature.
Scientists agree that our lineage appeared in Africa more than 100,000 years ago, but there is much debate about when Homo sapiens' cultural and cognitive character began resembling that of modern humans.
Small, manufactured blades such as those found in hunting arrows were first thought to have appeared in South Africa between 65,000 and 60,000 years ago.
Now, a team of scientists say they have found much older blades, called microliths and produced by chipping away at heat-treated stone, in a cave near Mossel Bay on South Africa's south coast.
"Our research... shows that microlithic technology originated early in South Africa, evolved over a vast time span (about 11,000 years) and was typically coupled to complex heat treatment," the study authors wrote.
"Advanced technologies in Africa were early and enduring," they said, adding that long absences of tool-use evidence in the palaeontological record are explained by the relatively small number of sites excavated to date, not by an ebb and flow in early man's technological know-how.
The find is evidence that early modern humans in South Africa had the ability to make complex designs and teach others to copy them, said the researchers.
This would have allowed them to produce tools like arrows with a much longer killing distance than hand-cast spears.
"Microlith-tipped projectile weapons increased hunting success rate, reduced injury from hunting encounters gone wrong, extended the effective range of lethal interpersonal violence," wrote the team.
It would also have conferred "substantive advantages on modern humans as they left Africa and encountered Neanderthals equipped only with hand-cast spears".
Neanderthals lived in parts of Europe, Central Asia and the Middle East for up to 300,000 years but appear to have vanished some 40,000 years ago.
In a comment on the study, also published by Nature, anthropologist Sally McBrearty from the University of Connecticut said humans making the monoliths would have chipped small blades from stone carefully selected for its texture and heat-treated to make it easier to work with.
They would then have retouched the blades into geometric shapes, probably for use in arrows to be shot from bows.
This, in turn, meant the makers would have had to collect other materials such as wood, fibres, feathers, bone and sinew over a period of days, weeks or months, interrupted by other, more urgent tasks.
"The ability to hold and manipulate operations and images of objects in memory, and to execute goal-directed procedures over space and time, is termed executive function and is an essential component of the modern mind," McBrearty wrote.