David Pumphry

Husband, Dad, Mathman

[Physics In History @PhysInHistory]

A rotating point traces out a wave:✍️

One full turn (2π = 360°) equals one wavelength λ, completed in time t = 1/f. The wave's speed connects them through v = λf.

[Physics In History @PhysInHistory]

Animation showing sine and cosine functions ✍️

📹 by mate matick

[David Pumphry @dpumpmathman]

@StrasburgTrack @StrasburgSports Congrats Lydia!!!

[David Pumphry @dpumpmathman]

@WeAreStrasburg I’ll be there. Come join me

[Strasburg-Franklin Local Schools @WeAreStrasburg]

Strasburg National Honor Society and the American Red Cross are teaming up to hold another blood drive on Friday, March 20th in the MAC.

Link to sign up: https://t.co/F7f9UkDsUS

[Coach AJ 🎯 Mental Fitness @coachajkings]

Kurt Warner shares the lesson that changed his entire career and it applies to everything.

He sat on the bench for 4 years in college. When a friend asked the coaches why he wasn't playing, the answer wasn't what he expected:

"The reason I wasn't playing was because I was not very good in practice."

His first reaction? Allen Iverson mode.

"Practice? What're you talking about, practice?"

But then he did the math.

"In college we play 12 games in 365 days. In the NFL we play 16 games in 365 days."

That's less than 5% of your year.

"95% of our lives are lived in practice. And the biggest impression we make on people, the way people can understand and really realize who we are, is what we do every day in practice."

This is the 95% Rule. And it applies to everything - sports, business, relationships, life.
1: Show Up With Your Best Effort - Compete and give your best every single day. People can't question how you show up - your effort, attitude, and actions. Consistency removes doubt.
2: Trust Is Built In Practice, Not Games - Trust is earned in the thousands of moments before it's given. Before you can be trusted, people want to know you're dependable. Every day. Not just when it matters.
3: Master Daily Consistency - Success isn't about intensity - it's about consistency. Your habits compound. What you do daily defines who you become.
4: Big Moments Are Earned In Small Moments - The little details make the biggest difference. Greatness starts with preparation - it's earned in the boredom of doing the work when no one's watching.

Excellence isn't an event - It's a habit.

Practice is where trust is built.

How you show up daily is who you really are.
(🎥 Passing the Torch Podcast)
(🎥 @kurt13warner)

[David Pumphry @dpumpmathman]

This one too, both Army Air Corps

[David Pumphry @dpumpmathman]

What is this WW II patch?

[Physics In History @PhysInHistory]

Beautiful physics experiment ✍️

[Physics In History @PhysInHistory]

Visualization of magnetic field ✍️

[David Pumphry @dpumpmathman]

@CypherQuinton Be a Buckeye! OH

[David Pumphry @dpumpmathman]

@ALadyNamedKatie Congratulations, keep it up!

[David Pumphry @dpumpmathman]

@ThrillaRilla369 Facts

[David Pumphry @dpumpmathman]

@GabeHoyer Just wrong

[David Pumphry @dpumpmathman]

@NewsNation We’ll enjoy it being light at 4am and dark by 9pm in June. You adjust in like two days. This is nonsense.

[David Pumphry @dpumpmathman]

@__ChrisCote Note Dame’s loss!

Then Notre Dame still being in the top 25

[David Pumphry @dpumpmathman]

@IndyCarOnFOX @CFBONFOX @stoolpresidente @barstoolsports Graham Rahal would like a word…

[David Pumphry @dpumpmathman]

@coffee_anytime Or thrown discus or shot

[Strasburg-Franklin Local Schools @WeAreStrasburg]

REMINDER: Saturday August 2nd, ProVia is hosting a free school supply giveaway and activities from 8AM-11AM. See flyer for more information.

[David Pumphry @dpumpmathman]

@lippyent Many kids probably could today…the kids just won’t leave their phone or computer to go play outside.