CWConstruction

Happy Easter! This week's project finished at the workshop, a stool out of Oak featuring a lovely and perfectly measured regular hexagon seat. Purposely designed and constructed to become a future family heirloom piece. Available to purchase christopherwardconstruction.com

@djberg96 @aakashgupta Roman Concrete is legendary!

@aakashgupta Great, now I'm reading about Pozzolan: en.wikipedia.org/wiki/Pozzolan

That water clarity is an engineering decision, and the math behind it is wilder than the video. Roman aqueducts ran on gravity alone. No pumps, no pressure systems. Engineers carved channels with a gradient so shallow it borders on absurd. The Pont du Gard in southern France drops 2.5 centimeters over 275 meters. That's roughly the thickness of a coin over the length of three football fields. They surveyed that accuracy with plumb lines and wooden leveling instruments. The clarity you're seeing is a direct product of flow velocity. Too steep and the water erodes the channel walls, picks up sediment, turns brown. Too flat and it stagnates. Roman engineers targeted a slope of about 20 centimeters per kilometer, which kept the water moving fast enough to stay fresh but slow enough to stay clear. Before the water reached the city, it passed through multi-chamber settling tanks where velocity dropped near zero. Suspended particles sank. Clean water flowed out the top into the next chamber. Repeat three or four times. Pliny specified the minimum slope in writing. Vitruvius published the exact mortar ratio for hydraulic cement: one part lime to two parts volcanic ash for underwater work. The pozzolana from Pozzuoli reacted with water to form a calcium-aluminum-silicate compound that actually gets stronger the longer it sits submerged. Modern concrete degrades in water. Roman concrete bonds with it. Scale the whole system and it gets harder to process. Eleven aqueducts fed Rome at its peak. Combined output: roughly 1 million cubic meters of water per day. That works out to about 250 gallons per person for a city of one million. Modern New York delivers about 125 gallons per person per day. Ancient Rome had access to double the per capita water supply of the largest city in the United States, running entirely on slope and stone. The Trevi Fountain in Rome is still fed by one of them. Two thousand years, same source, same gravity, same water.

@Ecstacy219 @Tgarratt10 Knew it

@cwconstruction @Tgarratt10 Hit

What’s your boldest claim for the upcoming season? The more mental the better…

@samuelc1000 @Tgarratt10 Sad times

@cwconstruction @Tgarratt10 And it was🥹

Just found the biggest beer garden ever

@SassafrasAdv1 @US_OGA 100 %

@cwconstruction @US_OGA Yesssss

Every Saturday morning I have breakfast with a bunch of old farmers. Discussion today was population decline and replacement rate in the US. They've come up with a very simple yet elegant solution to increase birth rates. Bring back bench seats in pickup trucks.

@MsKerriishere @US_OGA Do it !

@cwconstruction @US_OGA Yes 🙌🏻 Bring this back

Pitched up in Norfolk for the weekend and the sell 2 pints of beer takeaway from the tap

@ShuttleworthTru Hopefully your show won't be cancelled because the bf109 is "needed on overseas duty" 😉

The UK debut we all needed and it's a BIG one 🤩 Messerschmitt Bf 109 E-4 joins us exclusively for BOTH days of Festival of Flight (27 & 28 June) 🙌 🎟️ shuttleworth.org/events/festiva… #FestivalOfFlight #ShuttleworthAirShow #FOF26

@CrippledQuack @CasinoCapital correct, and thats why you see so many chinese electric cars on the road now, because jlr etc have to get them in

@CasinoCapital they harp on about “30% of new cars are electric because people love them” no 30% are electric because manufacturers are fined £12,000 per petrol car over the quota God knows what fiddles go on at dealers to reach that target fleet sales, discounts,phantom sales…

Why is the UK economy so bad, you ask? Well here's the Japanese ambassador posting about a cool Toyota 🚗 built in Derby But... It can't be sold in 🇬🇧 because the government made it illegal for manufacturers to sell too many petrol cars 🙈

@SurreyRS Next time hold Alt on your keyboard and type 0181 and release Alt will give you mu or µ for micrograms 👍🏻

The driver of this vehicle was seen using their handheld mobile phone by #VanguardRST on the M25, Leatherhead. Sirens were activated to try and stop the driver, but they had no idea the officer was next to them and the only way to get their attention was knocking on the passenger door. When eventually stopped, the driver provided a breath sample of 64ug (nearly twice the legal limit of 35) and was arrested. #OpTramline #RoadSafety #ItsNotWorthTheRisk

@edwardstrngr65 @simonharley a duck!?☺️

@cwconstruction @simonharley Look at the other one…

A photo this evocative shouldn’t exist. Kings Cross, December 1956 by G. F. Heiron.

@PolitlcsUK Got excited for a mo, thought it was this burnout

🚨 NEW: Green MP Carla Denyer says she is taking a leave of absence due to suffering from burnout

That Sukhoi 27 does look amazing

@RoyalAirForce @DefenceHQ @NATO I must admit those Sukhoi 27 would be sick to see up close 🫡

A statement from the Chief of the Air Staff, Air Chief Marshal Sir Harv Smyth, on recent Russian air activity. Read more here: raf.mod.uk/news/articles/… @DefenceHQ @NATO

@moving_charlie 100% correct But government planning rules deliberately restrict supply and would be completely different if free-market took hold

There’s no housing shortage.

@darrenpjones @grok is it worth mining crypto in the UK, or is electricity too expensive?

Inflation is down today, in part thanks to action we've taken on energy bills. But the price of electricity is still set by global gas rates, despite half of our electricity coming from renewables. So we're taking steps to fix that too. Let me explain 👇

@the_engi_nerd The J58 is far superior 😊

The Pratt & Whitney F135 is the only engine that matters