In 1983 what changed about the length of the meter?

629

---

Can an airplane fly without a tail?

715

---

Where do you put the oil in a compressor?

640

---

What are some mechanical laboratory apparatuses?

693

---

Will going from a 3 tap to a 6 tap increase water pressure?

614

---

How does a boat measure speed?

672

---

What is the difference between shear center flexural center of twist and elastic center?

768

---

What is the difference between "stress and strain”?

620

---

Why do you need a keyway in the construction of a wall?

655

---

What is jet plane?

692

---

Do you need to be an apprentice for mechanical engineering?

623

---

Why are lng pipes curved?

755

---

How fast is a jet plane?

640

---

What are the differences between pneumatics and hydraulics?

599

---

What are the uses of windmill?

627

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