A week ago, “Wonderlust”, Apple’s September event, was held, in which the company presented the new iPhone 15, iPhone 15 Plus, iPhone 15 Pro and iPhone 15 Pro Max. These last two They will be the first Apple smartphones with titanium frameswhich is lighter and more resistant.
According to official Apple data, iPhone 15 Pro is 19 grams lighter than iPhone 14 Pro. It is not a tremendous difference, and yet most journalists who have tested the new models agree that they seem lighter. It’s curious, but physics has the answer to this curiosity. You have to pay attention to the angular mass.
It feels less heavy than it weighs
Angular mass is the amount of force necessary to rotate an object about any of its three axes. The greater the inclination of the weight toward the center of an object, the less force will be needed to make it rotate. On the contrary, the more weight is on the edges of the object, the greater the force needed to make it rotate.
The weight of the iPhone frames is on the outside. If we reduce the weight of the frame by replacing stainless steel with titanium, the force needed to rotate it is reduced, although the actual mass reduction is not that important. Dr. Drang explains that:
The ability to manipulate a phone is based primarily on its mass, but also on its moment of inertia. And since the mass reduction when going from stainless steel to titanium occurs almost entirely around the perimeter of the phone, the moment of inertia should be reduced more than if the mass were reduced uniformly.
It is a very interesting phenomenon, of course. After some calculations we see that The real impact that this reduction has had is 14 or 15 percent, which is something that is much more noticeable and appreciated. The best thing is that there is nothing left to hold them in our hands and perceive that difference for ourselves.
iPhone 15 Pro and iPhone 15 Pro Max: much more than titanium and USB-C in the “best iPhone ever”
iPhone 15 Pro and iPhone 15 Pro Max, first impressions: the new definition of Premium
iPhone 15 Pro vs iPhone 14 Pro: the two giants face to face
iPhone 15 Pro Max vs. iPhone 14 Pro Max: the top of the range seen in specifications
Así quedan los iPhone 15 Pro y iPhone 15 Pro Max frente a la gama premium Android
Is it worth buying an iPhone 15 Pro if I already have an iPhone 14 Pro?
iPhone 15 Pro y iPhone 15 Pro Max, análisis: nuevos hitos en la gama alta
The 7 reasons why it is more “profitable” to buy an iPhone 15 Pro instead of an iPhone 15
No, iOS 17 doesn’t ruin your battery: your iPhone will be back to normal soon and here’s why
iPhone 15 Pro Max: some users are having serious problems with screen burn-in
The iPhone 15 Pro is much cheaper to repair than the iPhone 14, and the reason is very simple
Viking leader’s grave found in Denmark
How ancient debris changes our understanding of the Romans
Biodegradable nanoparticles deliver medicine directly to the tumor
Remains of a Neolithic “longhouse” found in Moldova
One of the world’s largest digital herbariums has opened at Moscow State University
An ancient necropolis excavated in the south of France
Burial of a man without a tongue found in England
Antibiotics speed up bacterial growth
Ovodov’s horse was found in Denisova Cave
Leave a Reply