Sunday, October 18, 2026

Elevator micro-adjustment when people get on board

How much micro adjustment (in mm) is needed in a 50-storey building when a dozen people get in?

In a 50-story building, an elevator car sitting at the bottom floor will stretch by approximately 51 mm (about 2 inches) when a dozen people step inside. Therefore, the elevator's micro-leveling system must winch the car upward by that exact distance to bring it flush with the building floor again.

• Added Load (P): 8,829 N (12 people averaging 75 kg each = 900 kg total mass x gravity @ 9.81m/s²
• Cable Length (L): 175,000 mm (Assuming a standard 3.5 meters per story over 50 stories, measured when the car is at the lowest level to evaluate maximum possible stretch).
• Number of Cables (n): 6 cables (A typical configuration for heavy high-rise cars).
• Metallic Cross-Sectional Area (A): ~60 mm² per cable (Based on a standard 13 mm / 0.5-inch elevator wire rope. Because cables are braided strands wrapped around a core, the actual solid metal area is roughly 45% of a solid cylinder's area): π(13/2)² x 45% = 60mm²
• Modulus of Elasticity (E): 85,000 N/mm²
Uploaded Image

AI-intensive Alpha schools

https://youtu.be/SC69VqCjRoQ?is=nR_vQN2pa-z5EpkI

Ridiculously high tuition averages $52000 a year. 

AI teaching specifically tailored to the student's individual interests, tracks their engagement and alters methods accordingly 

Very few teachers on site - mostly tech grads and life coaches staffing the schools

Intensive student monitoring and recording even at home and when sleeping

Large donations by the founders to politicians who control school vouchers which funnel public funding to private schools


Saturday, October 17, 2026

Mesmerizing

https://www.instagram.com/reel/Dc30rOaM4EA/?psln=cHczeXdldXA1NDYw

Save massive energy finally with straighter larger tubing in municipal systems


Here's the short version: 
• About half of the world's electricity runs electric motors, and half of that motor torque drives fans and pumps.
• Friction Reduction: Narrow, twisting pipes create massive fluid friction. Straight, wide-diameter pipes cut friction by 86% or more.
• Downsized Equipment: When friction drops, the pumps and motors pushing the fluid can be shrunk significantly (often by 80–90%).
• Lower Costs: Redesigning the whole loop frequently lowers total capital costs (because smaller pumps and motors cost less) while paying for itself in under a year or instantaneously on new builds.

Weather forecasting keeps getting better


Overall, weather predictions have come a long way in recent decades. 

Forecasting skill increases by roughly one extra day of accuracy per decade. 

A 5-day forecast today is roughly as accurate as a 1-day forecast was in the early 1980s, and a 3-day prediction of a tropical storm or hurricane track today is more precise than a 24-hour forecast was 40 years ago.

I've often wondered how much forecasting has improved. This video emphasizes how granular or hyper-regional current predictions are getting using AI and massive amounts of data. 

Uploaded Image

Thursday, October 15, 2026

Avoid car break-ins


Minimize, and hide valuables in spare tire compartment. 
Leave the glovebox open, turn any bags inside out to show they're empty, make it obvious you have no electronics in the car, and *put the rear seat in the flooded-down position so they can see the trunk is empty. 

World's largest electric aircraft just flew

14:27 of we can [build an airplane] that is lower emissions, lower cost, better quality of life — we should do it. 
3:10 jet engines are inefficient at taxiing, takeoff, and landing. For a short flight, [a jet] can burn 10% of it's fuel [load] taxiing. 
3:25 the segment [of aviation] of regional flights is really badly served by the technology we have today. 
3:32 half of all flights [flown today] are under 2 hours. 
5:49 if you're a founder... every time you need more capital, there needs to be something material, something [one] can touch, that you've made. 
8:10 [built-in redundancy] everything has to work,  even if everything goes wrong 
9:40 1 in 1000 flights gets diverted to another airport...you need 45 minutes of "loiter" and then [another 100 miles of range.]

Wednesday, October 14, 2026

AI makes a novel medical advance

https://youtube.com/shorts/FoifEkBtxkE?is=XDcNm5AHfh5L2avr

 AI was able to come up with a new hypothesis, and search for a drug that would make previously innocuous-seeming tumor cells "visible" to the immune system, without affecting normal cells. 

Sunday, October 11, 2026

How actors show emotion, and what directors do with masked actors do instead.

https://youtu.be/-gitexWSLlg?is=_yBEGNsI8OqIPW2Z

Excellent video with the perfect excerpt to illustrate each point. Clearly very well researched by someone knowledgeable. 
3:05 the Kuleshov effect - context imparts emotion to an identically neutral face

Thursday, October 8, 2026

Powerful long-range drones for military supply shipments

https://youtu.be/mXLGGZM_b50?is=XNbxlP_mYYRIqoOA

The capability of these military drones is growing in leaps and bounds, and the race is being fueled by the remarkably lower cost than moving goods by helicopter. And, 1:29 "according to the Navy, over 90% of logistics deliveries are under 50 pounds," so sending a helicopter is a huge waste. 

Tuesday, October 6, 2026

How to respond when someone has cancer

https://www.hiddenbrain.org/podcast/when-bad-things-happen-to-good-people/

Kate Bowler categorizes the harmful or unhelpful responses people give when faced with terrible news into the archetypes of "Teachers," "Solvers," and "Optimizers."
Instead of meeting suffering with simple presence, people in these categories try to manage their own discomfort by attempting to fix, explain, or improve the situation.

1. The Teachers
The Teachers look at someone else's tragedy and immediately try to find a lesson, blueprint, or a "silver lining" to explain why it happened.
• The Response: They offer platitudes like "Everything happens for a reason," "God is testing you," or "Think of what you are learning about yourself through this."
• The Reality: Bowler notes that this response forces a false sense of order onto chaos. It attempts to wrap a tragic situation in an educational bow, which ultimately minimizes the raw reality of the person's grief and makes them feel like their pain is just a homework assignment they need to master.

2. The Solvers (or Fixers)
The Solvers treat a person's crisis or illness like a practical puzzle that can be cracked with enough effort or information.
• The Response: They offer unsolicited medical, spiritual, or lifestyle advice: "Have you tried cutting out sugar, or eating more vegetables?" "You should look into this alternative treatment," or "If you just pray harder, things will change."
• The Reality: This response is driven by the fear that tragedy is random. By insisting there is a solution, the Solver protects their own illusion of control. The underlying—and damaging—message to the sufferer is that if they just try harder, they can fix their own tragedy, subtly placing the blame on them if things go wrong.

3. The Optimizers (and "Purpose Monsters")
The Optimizers are products of modern self-help and productivity culture, treating human beings like assembly lines that can be continuously upgraded.
• The Response: When hit with bad news, they immediately pivot toward tracking metrics, relentless self-improvement, or toxic positivity. They want to optimize your mindset, your morning routine, your step counts, or your macros to "outrun" the pain.
• The Reality: Bowler argues that optimization is a joy blocker. The culture of optimization insists that human agency is unlimited and that any physical or emotional limitation is a personal failure. In reality, human beings are breakable and dependent. Trying to "optimize" your way through a tragedy forces you to hoard positive vibes while running away from the necessary, messy work of feeling the pain all the way through.


What to Do Instead: True Presence
Bowler's work emphasizes that life is beautiful and terrible, and there is no cure for being human. When someone receives bad news, they do not need a lesson, a 5-step optimization plan, or an amateur solution. What they actually need is presence and love—people who are brave enough to sit with them in the muck of unpredictable reality without trying to clean it up.

What to say to someone falling with terrible news. 
At 39 minutes: "I will keep pace with your hope. I will hold your hope when you can't any longer. I won't turn away from the difficulty you're facing — to hold possibility but not be blind to reality." 

39:45 Optimism - the hope that there are still beautiful things ahead for the person. Hold on to a sense of self-continuity. (Vs blind optimism or toxic positivity that "You will be ok no matter what," which leads to not listening to your doctor, or leads to avoiding negative words that might create reality.) 

"Remain porous" - Charles Taylor (open to God, open to despair, open to reality.) More beautiful will come your way, and you'll spare yourself the delusion of having control over it. 
Modern "self" seals itself off from reality, trying to make meaning out of everything. Every dark chapter needs to be improved, to be a self-improvement project. 

This is why vitamin D deficiency is prevalent

https://www.facebook.com/share/r/18iL33gAiJ/

See the video that shows, through winter, the latitude above which the sun can't provide you any vitamin D. 

Search This Blog

Followers