Feeds

'Super rogue wave' scuppers Lego pirate

Australian experiment shows how giant waves emerge

Secure remote control for conventional and virtual desktops

Video (.mov) Pity the poor Lego pirate in the video below: there he is, placidly riding over tiny waves, when a rogue wave arrives and upends his vessel.

The video looks trivial, but it has a serious implication: the ANU scientists that put it together did so as part of the world’s ongoing effort to understand rogue waves that menace shipping and arrive without warning.

The ANU team, working with colleagues from Hamburg University of Technology and the University of Turin, demonstrated that a particular condition known as a “Peregrine soliton” can arise in apparently calm seas, causing a “super rogue wave” much larger (relative to the ambient conditions) than has previously been measured.

Peregrine solitons were first proposed in the early 1980s by a mathematician, Howell Peregrine of the University of Bristol, and first observed in optics. The wave undergoes a compression, increasing its amplitude (as you can see in the video).

Over to the ANU’s statement: “The large amplification of the rogue wave peak above the normal waves around it suggests the existence of a new class of waves – the so-called ‘super rogue waves’,” explains Professor Nail Akhmediev of the ANU’s Research School of Physics and Engineering.

“Our results show that, even in a sea characterised by small waves, rogue waves can naturally develop due to the nonlinear dynamics of the surface elevation. This is an extraordinary fact that could explain some mysterious observations of rogue waves in calm sea states.” ®

Video source: Physical Review - original here. ®

Boost IT visibility and business value

More from The Register

next story
Our LOHAN spaceplane ballocket Kickstarter climbs through £8000
Through 25 per cent but more is needed: Get your UNIQUE rewards!
Cutting cancer rates: Data, models and a happy ending?
How surgery might be making cancer prognoses worse
Boffins ID freakish spine-smothered prehistoric critter: The CLAW gave it away
Bizarre-looking creature actually related to velvet worms
CRR-CRRRK, beep, beep: Mars space truck backs out of slippery sand trap
Curiosity finds new drilling target after course correction
SpaceX prototype rocket EXPLODES over Texas. 'Tricky' biz, says Elon Musk
No injuries or near injuries. Flight stayed in designated area
Brit balloon bod Bodnar overflies North Pole
B-64 amateur ultralight payload approaching second circumnavigation
Galileo, Galileo! Galileo, Galileo! Galileo fit to go. Magnifico
I'm just a poor boy, nobody loves me. But at least I can find my way with ESA GPS by 2017
Astronomers scramble for obs on new comet
Amateur gets fifth confirmed discovery
prev story

Whitepapers

Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
5 things you didn’t know about cloud backup
IT departments are embracing cloud backup, but there’s a lot you need to know before choosing a service provider. Learn all the critical things you need to know.
Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
Top 8 considerations to enable and simplify mobility
In this whitepaper learn how to successfully add mobile capabilities simply and cost effectively.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?