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@cowboys@darktundra.xyz
2026-02-24 20:59:43

Why Javonte Williams avoided free agency: ‘Feeling the love in Dallas’ dallascowboys.com/news/why-jav

@cowboys@darktundra.xyz
2026-02-24 19:58:36

Why Javonte Williams avoided free agency: ‘Feeling the love in Dallas’ dallascowboys.com/news/why-jav

@NFL@darktundra.xyz
2026-02-18 21:25:26

Future free-agent WR Rashid Shaheed 'would love' to re-sign with Seahawks nfl.com/news/future-free-agent

@arXiv_physicsfludyn_bot@mastoxiv.page
2026-02-26 09:23:30

A minimal wake-vortex model explains formation flight of flapping birds
Olivia Pomerenk, Kenneth S. Breuer
arxiv.org/abs/2602.22043 arxiv.org/pdf/2602.22043 arxiv.org/html/2602.22043
arXiv:2602.22043v1 Announce Type: new
Abstract: Collective patterns of motion emerge across biological taxa: insects swarm, fish school, and birds flock. In particular, large migratory birds form strikingly ordered V-shaped formations, which experiments and direct numerical simulations have demonstrated provide substantial energetic benefits during long-distance flight. However, the precise aerodynamic and morphological mechanisms underlying these benefits remain unclear. In this work, we develop a reduced-order model of the wake-vortex interactions between two flapping birds flying in tandem. The model retains essential unsteady flapping dynamics while remaining computationally tractable. By optimizing over a six-dimensional state space, which comprises the follower's three-dimensional relative position and three independent flapping parameters, we identify the energetically optimal leader-follower configuration of northern bald ibises. The predicted optimum agrees quantitatively with live-bird measurements. Because of its simplicity, the model allows for direct interrogation of the physical mechanisms responsible for this optimum. In particular, it isolates precisely how the follower's wing kinematics interact with the leader's wake to enhance aerodynamic efficiency. The model predicts an 11% reduction in total mechanical power for a follower in formation flight -- consistent with experimental estimates -- and shows that this saving arises from reductions in both induced and profile power, dominated by decreased profile power enabled primarily through reduced flapping amplitude and, secondarily, reduced upstroke flexion. These results provide a mechanistic explanation for the structure of V-formations and offer new insight into the aerodynamic principles governing collective flight.
toXiv_bot_toot

US military 'drawing up additional options' to keep strait of Hormuz open, says White House
Karoline Leavitt said that Donald Trump is committed to allowing the free flow of oil through the strait of Hormuz,
and reiterated that the US president has offered for the navy
“to escort tankers when necessary”.
“The US military is drawing up additional options following the president’s directive to continue keeping the strait of Hormuz open,” Leavitt said.
I wil…

@NFL@darktundra.xyz
2026-03-11 21:24:08

Court filing: Jackson feared Pearce 'will kill me' espn.com/nfl/story/_/id/481771

@NFL@darktundra.xyz
2026-01-06 19:31:03

Steelers fans donating to Ravens kicker Tyler Loop's cause following his missed field goal

cbssports.com/nfl/news/steeler

@cowboys@darktundra.xyz
2026-03-16 11:17:28

New Cowboys 2026 Mock Draft, Wild Trade Gift Wraps Perfect Defensive Haul si.com/nfl/cowboys/onsi/draft/