Nate D'Arcy

Go Play Outside

[Aakash Gupta @aakashgupta]

The physics of what's happening in that 0.1 seconds of contact should bother you.

Those tires are completely stationary when they hit the ground. The plane is moving at 250 km/h. For the first fraction of a second, the rubber isn't rolling. It's skidding. Pure friction has to accelerate 22 wheels, each weighing 120 kg, from zero to 155 mph in roughly a tenth of a second.

The tread surface goes from -50°C at cruising altitude to over 200°C at the moment of contact. A 250-degree temperature swing in 0.1 seconds. The smoke you see at every commercial landing is rubber vaporizing off the tire surface. Studies at Manchester and Heathrow found that tire smoke at touchdown produces a greater magnitude of particulate emissions than the jet engines themselves.

The tires are inflated to 200 PSI, six times your car's tire pressure, and they're filled with nitrogen instead of air. Regular air contains moisture that would flash to steam and oxygen that could combust at those friction temperatures. Nitrogen eliminates both risks.

Each tire costs $5,500 and lasts about 250 landings before replacement. The A380 carries 22 of them. At max landing weight, those 22 contact patches are distributing 391 metric tons across roughly 15 square feet of rubber. That's 57,000 pounds per square foot.

The reason they don't pre-spin the wheels before landing, which would eliminate the skid and save millions in tire wear, is weight. Adding electric motors to 22 wheels increases fuel burn on every single flight. The math says it's cheaper to vaporize rubber 250 times and buy new tires than to carry the motors.

[Nate D'Arcy @natedarcy]

https://t.co/3a4i47uvvG

This is definitely another side of the Canadian airport privatization argument that should be explored. @jayme_poisson @FrontBurnerCBC @LindaMcQuaig

[Collin Rugg @CollinRugg]

NEW: Astronaut Reid Wiseman shares a video of ‘Earthset’ that was taken with his iPhone

“This is uncropped, uncut with 8x zoom which is quite comparable to the view of the human eye…” Wiseman said.

This has to be the greatest iPhone video of all time.

[cbcwatcher @cbcwatcher]

Jeremy Hanson is a class act! @NASA

[The Figen @TheFigen_]

In Nazaré, Portugal, surfer Sebastian Steudtner rode a 26.2-meter wave, setting a new world record for big wave surfing.

An unbelievable feat!

[Elon Musk @elonmusk]

NASA Artemis passing close to the Moon

[World updates @itswpceo]

BREAKING:

🇺🇸 This is the greatest Rescue operation in history of America.

48-HOUR RESCUE INSIDE IRAN
HOUR BY HOUR

APRIL 3
- F-15E Strike Eagle (Viper 21) shot down by Russian missile over southwestern Iran.
- Mach 2.8 intercept, proximity fuse detonation.
- Both crew eject successfully.

HOUR 0
- Pilot recovered within minutes by ground team.
- WSO lands alone, injured (broken ankle), deep in enemy territory.

HOURS 1-4
- WSO starts evasion using night and terrain.
- IRGC launches massive manhunt with drones and dogs.

HOURS 4-8
- Thousands of Iranian civilians join the search for bounties.
- U.S. jams Iranian radars and communications.

HOURS 8-12
- WSO climbs 7,000-ft ridge despite injury.
- U.S. strikes crater roads to block IRGC reinforcements.

HOURS 12-18
- WSO reaches ridge top, hides in rocky crevice.
- Makes first brief radio contact with friendly forces.

HOURS 18-24
- A-10 Warthog shot down by Chinese MANPADS.
- Pilot safely recovered by naval assets.

HOURS 24-30
- Two HH-60W rescue helicopters hit by ground fire during attempt.
- Crews wounded but return to base.

HOURS 30-36
- U.S. escalates with cruise missile strikes on IRGC air defenses.
- WSO survives near-miss drone strike, relocates under fire.

HOURS 36-42
- Nighttime full extraction launched.
- Special operations teams insert and engage IRGC in firefight.

HOURS 42-48
- WSO located, stabilized on site, and extracted under heavy fire.

APRIL 5 — EARLY HOURS
- WSO pulled out alive and conscious.
- Both F-15E crew members safe.

[Andrew McCarthy @AJamesMcCarthy]

Pleased to share my favorite high-resolution capture of the Artemis II launch- the moment the SLS is clearing the tower, captured by a sound-triggered camera placed near the pad.

I'll have prints linked in my bio for this one, and here's a short thread about how it was captured

[Tristin Hopper @TristinHopper]

Air Canada has gone 43 (!) years without a fatal incident. My entire life up to this point has been lived in a country where the flag carrier never got a single person killed in a crash. The record is a totem to what serious people can accomplish. So naturally, Mark Carney is screaming at them to instead focus on nonsense.

[Marc Nixon @MarcNixon24]

Mark Carney & The Liberals WORST NIGHTMARE

JOE ROGAN: what will you do on DAY 1 as Prime Minister

Pierre: Unblock ALL our Natural Resources

Than Pierre gives a MASTER CLASS ON Canadian Energy & how Canada can be RICH Again

This DESTROYS the Liberals. CBC is going the MELTDOWN

[Nate D'Arcy @natedarcy]

@JimMcMurtry01 @grok is this authentic?

[The Babylon Bee @TheBabylonBee]

Canadian Reporterperson Announces Policepersons Have Identified Gunperson https://t.co/UZ5rnm8VI4

[Nate D'Arcy @natedarcy]

@NFL_DovKleiman Maye 💯

[Dov Kleiman @NFL_DovKleiman]

Snoop Dogg’s FULL Christmas halftime show on Netflix.

• Snoop Dogg
• K-Pop Demon Hunters
• Lainey Wilson
• Andrea and Matteo Bocelli

One of the greatest performances of All Time.

🔥🔥🔥

https://t.co/9eYedxh3QJ

[Zac Stevens @ZacStevensDNVR]

Bo Nix has joined Peyton Manning and Justin Herbert as the only QBs in NFL history to have 3,500 passing yards and 25 passing TDs in each of their first two seasons in the NFL.

[Zack Kelberman @KelbermanNFL]

List of QBs with 20+ wins, 7,000+ passing yards, and 50+ TD passes in their first two NFL seasons:

• Dan Marino
• Bo Nix

(via @NextGenStats)

[The Babylon Bee @TheBabylonBee]

Groundbreaking New Study Finds Islamophobia May Be Partially Caused By Muslims Killing People All The Time https://t.co/m47fiHMLPA

[Jason Kenney 🇨🇦🇺🇦🇮🇱 @jkenney]

Why do politicians on the left, like Albanese, always repeat the tired cliché that “there is no room for antisemitism here” following an attack on Jews?

The point is that there IS enormous room for antisemitism in our liberals societies, and they helped to create it.

Room created by lax immigration screening, and a failure to demand integration.

Room created by allowing mobs to take over streets and public spaces while screaming to “globalize the intifada,” “gas the Jews,” waving banners of banned terror groups, etc.

Room created by the left’s obsession with critical theory, intersectionality, and anti colonialism, which have created a veneer of intellectual respectability for the ancient hatred, and turned many universities into hotbeds of antisemitism.

Room created by actually funding the promotion of Jew hatred, as the Government of Canada has done, in the name of supporting “anti racism” programs (for which no one has been held accountable.)

Room created by rewarding Hamas for the 10/7 massacre by recognizing a non-existent Palestinian state.

Please spare us the “no room here” lie.

Show us you’re serious about reversing course on all of the above, that “zero tolerance for antisemitism” and “never again” actually mean something.

[Nate D'Arcy @natedarcy]

@SydneyLWatson @grok is this authentic and can you verify the video details and date?

[MLFootball @MLFootball]

🚨🚨HILARIOUS🚨🚨

BO NIX ON THE #BRONCOS BEING UNDERDOGS AT HOME VS. GREEN BAY:

“DON’T REALLY CARE. MY MOM THINKS WE’LL WIN SO THAT’S ALL THAT REALLY MATTERS”

💀💀💀💀