Sci-Fun Portal

Latest Books

Build the Bipedal Walking Robot

Book cover: Build the Bipedal Walking Robot

Release date: December 11, 2025

How to build your own bipedal walking robot with stable gait - from scratch to a fully functional robot.

Latest Posts

Biological immortality in 30 years?

Page thumb: Biological immortality in 30 years?

Published: April 30, 2026

Why humans will likely fail to achieve logevity escape velocity by 2050-2060 years.

Possible Biopunk Future

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Published: April 14, 2026

Could biotech be the next big tech that replaces software?

Possible Dystopian Future

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Published: April 08, 2026

What if people care only about themselves

Stable Bipedal Gait

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Published: March 31, 2026

How to balance a humanoid or two-legged robot to walk steadily and not fall.

Tennis Ball in Space

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Published: March 31, 2026

Orbital mechanics of a tennis ball in certain inertial frames relative to celestial bodies and their escape velocities.

Can a Human Form a Cocoon and Be Reborn?

Page thumb: Can a Human Form a Cocoon and Be Reborn?

Published: March 30, 2026

Can a Human Enter a Cocoon State and Rejuvenate?

Positronic Brain Issues

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Published: March 27, 2026

How incorrect that science fiction movies and books show robots with positronic brains.

Tutoring Services

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Published: March 18, 2026

Personalized tutoring in math, science and robotics – learn, build, succeed in classes and exams.