The Mass Shell (Relativistic Energy-Momentum-Mass Relation)
Richard Behiel
@richbehielAbout
Math & physics videos. I hope these will be helpful learning resources for college students, good refreshers for professionals in STEM, and philosophically intriguing for those who like to ponder the nature of things :) If you have a request for a topic, please let me know! This channel is totally open to the public, so don’t be shy to reach out with video suggestions, or if you have any questions about a topic presented in a video. I want to get better at making videos over time, so I value any and all feedback. Disclaimer: all statements and opinions posted on this channel are my own, not on behalf of any organization or advertiser.
Video Description
The Mass Shell (Relativistic Energy-Momentum-Mass Relation)
Upgrade Your iPhone Experience
AI-recommended products based on this video
![iPhone Charger Cord [MFi Certified] 3Pack 0.9M Lighting Cable Power Delivery Charging Cord Compatible with iPhone 14 13 13 Pro Max 12 12 Pro Max 11 XS XR X 8 iPad,White](https://m.media-amazon.com/images/I/61i3XjcGu1L._AC_SL1500_.jpg)
iPhone Charger Cord [MFi Certified] 3Pack 0.9M Lighting Cable Power Delivery Charging Cord Compatible with iPhone 14 13 13 Pro Max 12 12 Pro Max 11 XS XR X 8 iPad,White

Kaistyle for Magsafe Car Mount【20 Strong Magnets】 Magnetic Phone Holder for Car Phone Holder Mount Dash Cell Phone Holders for Your Car Accessories for Women Men for iPhone 17 Pro Max 16 15 14 13 12 ClimatePartner certified
![Car Phone Holder for Magsafe [78+LBS Strongest Suction & 2400gf Magnetic] 360° Adjustable Car Phone Mount, Phone Holders for Your Car for iPhone 17 Pro Max 16 15 14 13 12 Air Plus (Carbon Fiber) Global Recycled Standard](https://m.media-amazon.com/images/I/712lUnThXpL._AC_UL960_FMwebp_QL65_.jpg)
Car Phone Holder for Magsafe [78+LBS Strongest Suction & 2400gf Magnetic] 360° Adjustable Car Phone Mount, Phone Holders for Your Car for iPhone 17 Pro Max 16 15 14 13 12 Air Plus (Carbon Fiber) Global Recycled Standard

LISEN Retractable Car Charger, 69W USB C Car Accessories Adapter for iPhone 17 USB C Charger Fast Charging, Gifts for Women Men, Travel Essentials, for iPhone 17 Pro Max Air 16 15 14 13 12 Samsung S25

Belkin BoostCharge Lightning Cable - 6.6ft/2M - MFi Certified Apple iPhone Charger USB to Lightning Cable - iPhone Cable - iPhone Charger Cord - Apple Charger - USB Phone Charger - Black

Wireless Bluetooth Mouse for Apple iPad iPhone MacBook Android Samsung Tablet Phone Dual-Mode Rechargeable 2.4G Portable Computer Mice for Windows Laptop Notebook PC Mac Desktop USB Receiver (Black)

Apple EarPods Headphones with Lightning Connector, Wired Ear Buds for iPhone with Built-in Remote to Control Music, Phone Calls, and Volume

Apple AirPods 4 Wireless Earbuds, Bluetooth Headphones, Personalized Spatial Audio, Sweat and Water Resistant, USB-C Charging Case, H2 Chip, Up to 30 Hours of Battery Life, Effortless Setup for iPhone

ESR for iPhone 17 Pro Max Case, Camera Control, Compatible with MagSafe, Shockproof Military-Grade Protection, Magnetic Phone Case for iPhone 17 Pro Max, Classic Hybrid Case, Clear Carbonfree Certified

FNTCASE for iPhone 17 Pro-Max Case: Clear Magnetic Phone Cases with Screen Protector Compatible with Magsafe Slim Anti Yellowing Rugged Shockproof Protective Transparent Cell Cover (A-Clear) Recycled Claim Standard Blended

Apple AirPods Pro 2 Wireless Earbuds, Active Noise Cancellation, Hearing Aid Feature, Bluetooth Headphones, Transparency, Personalized Spatial Audio, High-Fidelity Sound, H2 Chip, USB-C Charging

Anker Power Bank(PowerCore 10K),Compact Travel-Ready 10,000mAh Battery Pack with PowerIQ Charging Technology,5V/3A High-Speed Charging for iPhone,iPad,and More (USB-C Input and Output(Black),1pack) ClimatePartner certified

Anker USB C to USB C Cable, Type-C 60W Fast Charging Cable (6FT, 2Pack) for iPhone 16 Series, iPad mini 6 and More (Black) ClimatePartner certified

Belkin BoostCharge Lightning Cable - 6.6ft/2M - MFi Certified Apple iPhone Charger USB to Lightning Cable - iPhone Cable - iPhone Charger Cord - Apple Charger - USB Phone Charger - Black

Anker iPhone 16 Charger, 2-Pack 20W Fast USB C Charger Block, for iPhone 16/16 Pro Max/15 Series/iPad Pro and More (White, 2 Pack & 2 Cable)

ANKER 737 Power Bank, 24,000mAh 3-Port Laptop Portable Charger with 140W Fast Charging, Smart Display, for Outdoor Work, Compatible with iPhone 16/15/14 Series, Vision Pro, Samsung, MacBook, and More

FNTCASE for iPhone 17 Pro-Max Case: Clear Magnetic Phone Cases with Screen Protector Compatible with Magsafe Slim Anti Yellowing Rugged Shockproof Protective Transparent Cell Cover (A-Clear) Recycled Claim Standard Blended
![iPhone Charger Cord [MFi Certified] 3Pack 0.9M Lighting Cable Power Delivery Charging Cord Compatible with iPhone 14 13 13 Pro Max 12 12 Pro Max 11 XS XR X 8 iPad,White](https://m.media-amazon.com/images/I/61i3XjcGu1L._AC_SL1500_.jpg)
iPhone Charger Cord [MFi Certified] 3Pack 0.9M Lighting Cable Power Delivery Charging Cord Compatible with iPhone 14 13 13 Pro Max 12 12 Pro Max 11 XS XR X 8 iPad,White

Kaistyle for Magsafe Car Mount【20 Strong Magnets】 Magnetic Phone Holder for Car Phone Holder Mount Dash Cell Phone Holders for Your Car Accessories for Women Men for iPhone 17 Pro Max 16 15 14 13 12 ClimatePartner certified
![Car Phone Holder for Magsafe [78+LBS Strongest Suction & 2400gf Magnetic] 360° Adjustable Car Phone Mount, Phone Holders for Your Car for iPhone 17 Pro Max 16 15 14 13 12 Air Plus (Carbon Fiber) Global Recycled Standard](https://m.media-amazon.com/images/I/712lUnThXpL._AC_UL960_FMwebp_QL65_.jpg)
Car Phone Holder for Magsafe [78+LBS Strongest Suction & 2400gf Magnetic] 360° Adjustable Car Phone Mount, Phone Holders for Your Car for iPhone 17 Pro Max 16 15 14 13 12 Air Plus (Carbon Fiber) Global Recycled Standard

LISEN Retractable Car Charger, 69W USB C Car Accessories Adapter for iPhone 17 USB C Charger Fast Charging, Gifts for Women Men, Travel Essentials, for iPhone 17 Pro Max Air 16 15 14 13 12 Samsung S25

Soundcore by Anker P20i True Wireless Earbuds, 10mm Drivers with Big Bass, Bluetooth 5.3, 30H Long Playtime, Water-Resistant, 2 Mics for AI Clear Calls, 22 Preset EQs, Customization (Blue)

Anker iPhone 16 Charger, 2-Pack 20W Fast USB C Charger Block, for iPhone 16/16 Pro Max/15 Series/iPad Pro and More (White, 2 Pack & 2 Cable)

Anker USB C to USB C Cable, Type-C 60W Fast Charging Cable (6FT, 2Pack) for iPhone 16 Series, iPad mini 6 and More (Black) ClimatePartner certified
![iPhone Charger Cord [MFi Certified] 3Pack 0.9M Lighting Cable Power Delivery Charging Cord Compatible with iPhone 14 13 13 Pro Max 12 12 Pro Max 11 XS XR X 8 iPad,White](https://m.media-amazon.com/images/I/61i3XjcGu1L._AC_SL1500_.jpg)
iPhone Charger Cord [MFi Certified] 3Pack 0.9M Lighting Cable Power Delivery Charging Cord Compatible with iPhone 14 13 13 Pro Max 12 12 Pro Max 11 XS XR X 8 iPad,White

Kaistyle for Magsafe Car Mount【20 Strong Magnets】 Magnetic Phone Holder for Car Phone Holder Mount Dash Cell Phone Holders for Your Car Accessories for Women Men for iPhone 17 Pro Max 16 15 14 13 12 ClimatePartner certified
![Car Phone Holder for Magsafe [78+LBS Strongest Suction & 2400gf Magnetic] 360° Adjustable Car Phone Mount, Phone Holders for Your Car for iPhone 17 Pro Max 16 15 14 13 12 Air Plus (Carbon Fiber) Global Recycled Standard](https://m.media-amazon.com/images/I/712lUnThXpL._AC_UL960_FMwebp_QL65_.jpg)
Car Phone Holder for Magsafe [78+LBS Strongest Suction & 2400gf Magnetic] 360° Adjustable Car Phone Mount, Phone Holders for Your Car for iPhone 17 Pro Max 16 15 14 13 12 Air Plus (Carbon Fiber) Global Recycled Standard

LISEN Retractable Car Charger, 69W USB C Car Accessories Adapter for iPhone 17 USB C Charger Fast Charging, Gifts for Women Men, Travel Essentials, for iPhone 17 Pro Max Air 16 15 14 13 12 Samsung S25
![iPhone Charger Cord [MFi Certified] 3Pack 0.9M Lighting Cable Power Delivery Charging Cord Compatible with iPhone 14 13 13 Pro Max 12 12 Pro Max 11 XS XR X 8 iPad,White](https://m.media-amazon.com/images/I/61i3XjcGu1L._AC_SL1500_.jpg)
iPhone Charger Cord [MFi Certified] 3Pack 0.9M Lighting Cable Power Delivery Charging Cord Compatible with iPhone 14 13 13 Pro Max 12 12 Pro Max 11 XS XR X 8 iPad,White

Kaistyle for Magsafe Car Mount【20 Strong Magnets】 Magnetic Phone Holder for Car Phone Holder Mount Dash Cell Phone Holders for Your Car Accessories for Women Men for iPhone 17 Pro Max 16 15 14 13 12 ClimatePartner certified
![Car Phone Holder for Magsafe [78+LBS Strongest Suction & 2400gf Magnetic] 360° Adjustable Car Phone Mount, Phone Holders for Your Car for iPhone 17 Pro Max 16 15 14 13 12 Air Plus (Carbon Fiber) Global Recycled Standard](https://m.media-amazon.com/images/I/712lUnThXpL._AC_UL960_FMwebp_QL65_.jpg)
Car Phone Holder for Magsafe [78+LBS Strongest Suction & 2400gf Magnetic] 360° Adjustable Car Phone Mount, Phone Holders for Your Car for iPhone 17 Pro Max 16 15 14 13 12 Air Plus (Carbon Fiber) Global Recycled Standard




