All Answers (8) 1  This is nice information from wikipedia visit. 2  I guess if you assume the DNA is at rest with an average rise of 3.4 A per base pair, then the length of chr1 would be 3.4A * 249*10^6, i.e. 847*10^6A, i.e. ~85 mm, or 8.5 cm.
Boiler sizing includes two things: 1  The heating and hot water capabilities of the boiler. 2  The physical size of your boiler and whether it will fit in the space you have it destined for.
The reason i say this is i go to boilers in the loft with probs and 99% have the filling loop and pressure gauge is at the boiler. not such a prob if you are a fit 20 yr old but elderley people cannot go into the loft periodically to check and top up system pressure! Click to expand...'ve been thinking about this a bit more and since it appears there is little/no benefit in terms of heat output of having a modern combi boiler in the kitchen (i.s. heat radiated from the boiler) then putting it in the loft would free up some useful space in the kitchen.