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Power in MPs' 'hot air' weighed up Power in MPs' 'hot air' weighed up
(3 days later)
Students at the University of Leicester have calculated the power available from the "hot air" produced by MPs.Students at the University of Leicester have calculated the power available from the "hot air" produced by MPs.
As part of a fourth-year project, students determined that 650 MPs produce more than 10kW of heat just through "prolonged speaking".As part of a fourth-year project, students determined that 650 MPs produce more than 10kW of heat just through "prolonged speaking".
However, a separate study showed that MPs' breathy heat was insufficient for warming the Commons significantly.However, a separate study showed that MPs' breathy heat was insufficient for warming the Commons significantly.
The tongue-in-cheek project was designed to teach students how to prepare more weighty science articles.The tongue-in-cheek project was designed to teach students how to prepare more weighty science articles.
"Discussions in the UK's House of Commons, particularly during Prime Minister's Questions, are well-known for fiery exchanges," Daniel Staab and co-authors wrote in the first study, Hot Air in the House of Commons."Discussions in the UK's House of Commons, particularly during Prime Minister's Questions, are well-known for fiery exchanges," Daniel Staab and co-authors wrote in the first study, Hot Air in the House of Commons.
"Given the lively nature of these debates, does the hot air exhaled by MPs constitute a significant heat source?""Given the lively nature of these debates, does the hot air exhaled by MPs constitute a significant heat source?"
The team determined that more than 2.5kW of power was contained just as heat in the air of their breath - providing they were all speaking continuously.The team determined that more than 2.5kW of power was contained just as heat in the air of their breath - providing they were all speaking continuously.
A further 7.8kW could be gained from the "latent heat" in the water vapour of MPs' breath - heat that is extracted as the water condenses again to a liquid.A further 7.8kW could be gained from the "latent heat" in the water vapour of MPs' breath - heat that is extracted as the water condenses again to a liquid.
'Off-the-wall''Off-the-wall'
In keeping with the methodical process of research science encouraged by the project, a follow-up study was carried out.In keeping with the methodical process of research science encouraged by the project, a follow-up study was carried out.
Emily Jane Watkinson and co-authors found that MPs' hot air cannot really be harnessed to save on energy bills.Emily Jane Watkinson and co-authors found that MPs' hot air cannot really be harnessed to save on energy bills.
In their paper Heat Loss in the House of Commons that in order to maintain a comfortable temperature of 20C, the heat would have to be turned on whenever the outside temperature dropped below 19.8C.In their paper Heat Loss in the House of Commons that in order to maintain a comfortable temperature of 20C, the heat would have to be turned on whenever the outside temperature dropped below 19.8C.
"A lot of the papers published in the journal [Physics Special Topics] are on subjects that are amusing, topical, or a bit off-the-wall," said course leader Mervyn Roy."A lot of the papers published in the journal [Physics Special Topics] are on subjects that are amusing, topical, or a bit off-the-wall," said course leader Mervyn Roy.
"Because Physics Special Topics is run exactly like a professional journal, the students get the chance to develop all the skills they will need when dealing with high-profile journals like nature or science later on in life." "Because Physics Special Topics is run exactly like a professional journal, the students get the chance to develop all the skills they will need when dealing with high-profile journals like Nature or Science later on in life."