The robot works with a combination of GPS navigation and with a gyroscope to keep it upright. There are also a number of sensors on the machine so it does not bump into anything.
Dustbot's inventors say they hope it will put an end to fixed times for rubbish collection and they say it is designed to work in tightly packed urban areas where large refuse trucks find it difficult to operate.
Scissors cut paper.Paper covers rock.Rock crushes lizard.Lizard poisons Spock.Spock smashes scissors. (SPOCK SMASH)Scissors decapitate lizard.Lizard eats paper.Paper disproves Spock.Spock vaporizes rock.Rock crushes scissors.
Here's how it works.
Imagine 1,000 people worried about contracting a smelly disease called Statisticitisis. If they all take a new wonder-pill, their risk is cut by 50%. Sound good?
Meanwhile, one in 1,000 suffer side effects. Trifling, a risk worth taking for such benefit, surely?
Here's the scam. 1 in 1,000 turns out to be the same as 50%. You are as likely to suffer side effects as to be protected from the illness.
How can 1 in 1,000 be the same as 50%? Because only two people out of 1,000 ever have the illness. Cut that by 50% and only one of them has the illness. So one person in 1,000 is protected. But we also know that one person in 1,000 suffers side effects.
One number is a relative risk reduction expressed as a percentage - 50% - and sounds impressive. The other is an absolute number of people - 1 in 1,000 - and sounds like not much to worry about. In fact, they represent the same number of people. That's mixed framing.
Female offences against teenagers (hebophiles rather than paedophiles) are more of a mystery, he says, because victims don't come forward, partly because in a patriarchal society boys are even expected to enjoy that kind of abuse, and not admit how scared they are by it.
Some believe that society's different attitude to women offenders is reflected in the language of the media reporting it. They point out that teachers "seduce" pupils if they are female but "sexually assault" if male.
Meanwhile for friends who doubt that women can be paedophiles, Yingxian is an effective counterexample.A US pilot was in luck when his falling aeroplane made a soft landing, thanks to a row of portable toilets.
The Cessna 182 suffered apparent engine failure after taking off from Thun Field airfield south-east of Tacoma in Washington state.
As it fell, the plane hit a fence, flipped upside down and landed on toilets being stored near the runway by the Northwest Cascade company.
A company employee said the toilets had "kind of cushioned things".
Like ... faeces?
