There had been speculation Tuesday that algae was the cause, but that theory was dismissed by officials.
" The manufacturing technique used in the workshopalso may have been used by weapon makers for the Emperor of Qin's real armies,though that's just speculation, Martinón-Torres said.
There has been speculation that law is ripe for "Uberisation", becoming the next target of technological disruption.
Speculation is rife that Amazon is soon to establish itself as a global shipping and logistics expert, in a move coined internally as project 'Dragon Boat'.
Speculation linking the tomb to Alexander the Great set off huge media interest, but archaeologists later concluded that it had probably been built for a close companion of the king and conqueror.
" Malia visited Harvard and a handful of other Ivy League and liberal arts schools last March on the East Coast, setting off speculation about where she might go.
China has moved to clamp down on excessive speculation in commodities after weeks of frenzied trading boosted prices and ignited fears of another bubble in its domestic markets.
The actor Tom Hiddleston has fuelled speculation that he could replace Daniel Craig as James Bond, saying he was a huge fan of the 007 films and would not take on the role lightly.
There was much speculation that Sharapova's Monday briefing with reporters centered on retirement plans following an increasing number of injuries, but the failed test was a bigger bombshell.
But a source close to Messi's entourage said earlier this month they could neither confirm nor deny the speculation regarding a possible meeting.
There is also speculation that this cancer may have learned to somehow modify canine sexual behavior in ways that promote the disease's spread and survival.
Daniel Craig has fuelled speculation he could quit James Bond - after signing up to a new TV role.
The resignation of Akio Toyoda, whose company has taken an unprecedented $1bn marketing bet on becoming one of the biggest corporate sponsors of the Olympics, followed renewed speculation the cost of hosting the event in Tokyo may spiral to over six times the original Y300bn ($2.
When a local news reporter asked about social media speculation that he could face charges, Mr.
A deal has been the subject of media speculation for much of the past month after news of the possible acquisition was reported in China Daily, an official mainland Chinese newspaper, on Nov.
" While there's been much speculation as to the ex Adele is addressing in the song, the very private singer has not given any evidence to identify the past lover.
A Samsung spokeswoman said the firm does not comment on rumors or speculation.
The BBC's Orla Guerin in Cairo says it is likely there will be speculation about militant involvement in the incident - Sinai has an active militant network, with local Jihadis who have allied themselves to so-called Islamic State.
:I think that only daring speculation can lead us further and not accumulation of facts.
However, it is based on scientific speculation, not certainty.