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Author Archives: Max
Choice log no. 1770250523 – Escape Velocity
Escape velocity is the minimum speed an object needs to break free from a celestial body’s gravity without further propulsion, calculated as Ve = √2GM/r , where G is the gravitational constant, M is the body’s mass, and r is the distance from its center. For Earth, it’s about 11.2 km/s (25,000 mph), while the Moon’s is lower (around 2.4 km/s) due to its smaller mass, and larger bodies like Jupiter have much higher escape velocities.
How it works
- Concept: It’s the speed where an object’s kinetic energy equals the gravitational potential energy, allowing it to travel infinitely far away.
- Dependence: It depends on the mass (M) and radius (r) of the celestial body, not the mass of the escaping object.
- Direction: It’s a scalar, meaning the direction doesn’t have to be straight up, but launching from the equator towards the east is easier due to Earth’s rotation.
Examples
- Earth: ~11.2 km/s (25,000 mph).
- Moon: ~2.4 km/s (1.5 miles/second).
- Mars: ~5 km/s (5,000 m/s).
- Jupiter: Much higher than Earth’s due to its immense mass.
Calculation Formula
- Ve = √2GM/r
- G: Gravitational constant (6.674×10-11 N • m2/kg2)
- M: Mass of the planet/body (in kg)
- r: Radius of the planet/body (in meters)
The above information was provided by Gemini.
es·cape ve·loc·i·ty
/əˈskāp vəˌläsədē/
noun: escape velocity
plural noun: escape velocities
the lowest velocity which a body must have in order to escape the gravitational attraction of a particular planet or other object.
Choice log no. 1770145198 – Epiphany
I realized if I ask this question, that my day actually becomes more productive.
Knowing what I know from yesterday, what would I do today? The first thought that enters my mind, I stop and concentrate on that one thought. More will come after the first thought. I have to stop after the first thought! Else, I start to think of the other thoughts and not act.
For the last two days, my first thought has been to complete three chapters of my Security+ training.
When I complete what I set out to do, I feel real good. I think I am getting addicted to this…
I still have to be present throughout the day, as distraction’s (social media, watch just that one YouTube video to relax, or just one show) pull is very strong. When I start to notice that I cannot focus and I am getting distracted, I step outside and take a five-minute escape (no electronics). Smell the air and admire what is in front of me. Doing this helps me calibrate my thinking and get back to being focused of what I set to complete. Sometimes, I have to take a ten-minute walk to really clear my mind from the pull of distraction.
Choice log no. 1770077047 – Keeping On
Two days in a row in studying for the Security+ (>2hrs). I feel confident that I will hit the set date for the exam!
Choice log no. 1769932234 – Last Day of January 2026
I have to optimize my studying. I have created a calendar to keep me on track. I read and heard some great quotes today that have inspired me to make February 2026 the month that I excel:
“When your hands are full, you have to put something down to pick something up.”
If what you are about to do is not useful, then the following should be said: “This is not a good use of my time.”
The choices I have made, and are about to make, I pay dearly… #progress
Choice log no. 1769833398 – Rely
Best not to rely on anyone. Most of the time, you might not get disappointed, but when you do get disappointed, you will be really disappointed. The more you rely on someone, and they follow through, the more dependant you will become on relying on others. The only true person that you can rely on, is yourself, and even then, sometimes even you let yourself down. So if you at times let yourself down, how can you really rely on someone else. I understand that at times, there is no other alternative, but when you can, I suggest you just do what you can yourself.
When someone asks, “Can I do that for you?” Think, can I do this myself? Best reply to not offend anyone, “Thank you, but I got this.”
“Everyone has a plan until they get punched in the mouth” -boxer Mike Tyson