World of Engineering
@engineers.bsky.social
The most fun way to learn something new everyday.
Drops on penny experiment: water vs alcohol.
The water molecules have much more cohesion than alcohol molecules, because they grab onto one another through hydrogen bonds.
The water molecules have much more cohesion than alcohol molecules, because they grab onto one another through hydrogen bonds.
November 10, 2025 at 8:39 AM
Drops on penny experiment: water vs alcohol.
The water molecules have much more cohesion than alcohol molecules, because they grab onto one another through hydrogen bonds.
The water molecules have much more cohesion than alcohol molecules, because they grab onto one another through hydrogen bonds.
Cordless wall chaser
November 9, 2025 at 3:23 PM
Cordless wall chaser
If the sun vanishes, we won’t know it for 8 minutes.
November 7, 2025 at 5:43 PM
If the sun vanishes, we won’t know it for 8 minutes.
Life tip: When you find an article about a scientific finding, look for the link to the actual study and just read that.
November 6, 2025 at 6:49 PM
Life tip: When you find an article about a scientific finding, look for the link to the actual study and just read that.
Read this vernier caliper.
November 6, 2025 at 8:18 AM
Read this vernier caliper.
Please explain
November 4, 2025 at 6:00 PM
Please explain
Lifting anchor
November 4, 2025 at 9:10 AM
Lifting anchor
Faking the moon landing in 1969 would have been harder than actually going to the moon.
It would also take the efforts of more than 400,000 conspirators to keep it a secret.
It would also take the efforts of more than 400,000 conspirators to keep it a secret.
November 4, 2025 at 8:55 AM
Faking the moon landing in 1969 would have been harder than actually going to the moon.
It would also take the efforts of more than 400,000 conspirators to keep it a secret.
It would also take the efforts of more than 400,000 conspirators to keep it a secret.
Life tip: When asked for your expected salary in an interview never give a number instead give a range.
November 4, 2025 at 7:12 AM
Life tip: When asked for your expected salary in an interview never give a number instead give a range.
Life tip: Type "-ai" (minus AI) at the end of your Google search to disable the AI summary.
November 3, 2025 at 11:17 AM
Life tip: Type "-ai" (minus AI) at the end of your Google search to disable the AI summary.
Everything is a hammer unless it's a screwdriver, then it's chisel.
November 1, 2025 at 5:44 PM
Everything is a hammer unless it's a screwdriver, then it's chisel.
5 megabytes of storage in 1956:
October 31, 2025 at 7:05 PM
5 megabytes of storage in 1956:
Right angle attachment
October 29, 2025 at 5:56 AM
Right angle attachment
Electrical discharge machining (EDM) is a non-traditional form of precision machining that uses thermal energy instead of mechanical force to remove material from a workpiece.
October 28, 2025 at 6:13 PM
Electrical discharge machining (EDM) is a non-traditional form of precision machining that uses thermal energy instead of mechanical force to remove material from a workpiece.
It didn’t get any cooler than this in the 1960’s
SR 71 Blackbird - it still looks futuristic today, sixty years after it came out.
SR 71 Blackbird - it still looks futuristic today, sixty years after it came out.
October 28, 2025 at 1:50 PM
It didn’t get any cooler than this in the 1960’s
SR 71 Blackbird - it still looks futuristic today, sixty years after it came out.
SR 71 Blackbird - it still looks futuristic today, sixty years after it came out.
The American Gyro AG-4 Crusader, 1935.
Number built: 1.
Number built: 1.
October 27, 2025 at 2:10 PM
The American Gyro AG-4 Crusader, 1935.
Number built: 1.
Number built: 1.
Life tip: Once you load your dishwasher, tap the spray arms to make them turn. This way you will notice if they would get stuck, compromishing the washing result.
October 26, 2025 at 5:21 PM
Life tip: Once you load your dishwasher, tap the spray arms to make them turn. This way you will notice if they would get stuck, compromishing the washing result.
Solar energy is going to power the world much sooner than you think
October 26, 2025 at 11:16 AM
Solar energy is going to power the world much sooner than you think
Believe it or not, but
100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002569
is prime.
100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002569
is prime.
October 25, 2025 at 6:30 PM
Believe it or not, but
100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002569
is prime.
100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002569
is prime.
Well what do you think of this?
October 24, 2025 at 7:45 AM
Well what do you think of this?
Life tip: Just because you get an opportunity to further your career doesn't mean it's always the right move.
October 22, 2025 at 5:37 PM
Life tip: Just because you get an opportunity to further your career doesn't mean it's always the right move.