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Frey Scientific Model 70 Jensen Oscillating Cylinder Steam Engine

  • Steam engine for demonstrating principles of steam energy
  • Electrically heated boiler generates steam pressure to drive the double-acting oscillating cylinder and two-speed pulley
  • Heating unit is 400W and operates on 110V
  • Pulley has a 1/2″ bore and 5/8″ stroke
  • Equipped with a water gauge safety valve (pop valve), whistle, and throttle

Product Description
The Frey Scientific Model 70 Jensen Oscillating Cylinder Steam Engine has an electrically heated boiler that generates steam pressure to drive the double-acting oscillating cylinder and two-speed pulley for demonstrating principles of steam energy. The heating unit is 400W and operates on 110V, and the pulley has a 1/2″ bore and 5/8″ stroke. The steam engine is equipped with a water gauge safety valve (pop valve), whistle, and throttle. Its base is approximately 9″ … More >>

Frey Scientific Model 70 Jensen Oscillating Cylinder Steam Engine

Be the first to comment - What do you think?  Posted by - June 2, 2017 at 10:39 pm

Categories: Vintage Steam Engines   Tags: , , , , , , ,

Scientific Tuesdays – How to build a Hero Engine


The Hero engine was first created over 2000 years ago and it is still a great demonstration of physics. To build a Hero Engine all we need are some common household items. A soda can, a nail and some fishing line (or strong string). By applying a heat source to the can we can force motion by propelling the can itself into a spinning and amazing action. Check out Gamefly here: gamefly.com

25 comments - What do you think?  Posted by - November 27, 2011 at 9:36 pm

Categories: Vintage Steam Engines   Tags: , , , ,

Are you liberal & scientific? Why don’t you support the scholarly campaign to legalise adult / child sex?

The Washington Times
April 19, 2002

A new book that says child molesters are not a major peril to children is part of a larger movement within academia to promote “free sexual expression of children.”

The movement to legitimize sex between adults and children is “gathering steam,” warns Stephanie Dallam, researcher for the Leadership Council for Mental Health, Justice and the Media in Philadelphia, an organization that deals with prevention and treatment of child abuse. “Some people view children as the next sexual frontier,” Ms. Dallam says.

Feminist writer Judith Levine’s book “Not Harmful to Minors: The Perils of Protecting Kids from Sex” has been condemned by those who say she excuses sexual abuse of children ? a charge she strongly denies.

Ms. Levine says she was “misunderstood” after a news article last month quoted her saying a boy’s sexual experience with a priest “conceivably” could be positive. “Do I advocate priests having sex with their child parishioners? No, absolutely no,” she said in a telephone interview. However, she said, “The research shows us that in some minority of cases, young ? even quite young ? people can have a positive [sexual] experience with an adult. That’s what the research shows.”
http://www.come-and-hear.com/editor/ca-wt-04-19-02/index.html
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Judith Levine’s 2002 book in which she suggests:

– Liberalization of age-of-consent laws in the US
– The conception of minors as sexual beings
– Weakening most United States laws governing possession of child pornography
http://www.amazon.co.uk/Harmful-Minors-Perils-Protecting-Children/dp/0816640068

Review of her book:
http://www.psychologytoday.com/articles/200208/harmful-minors-book-review

2 comments - What do you think?  Posted by - March 26, 2011 at 10:42 pm

Categories: UK Steam   Tags: , , , , , , , ,