Menu
Your Cart
20% OFF on products Shop now

Focograms

Focograms

THEY SAY THAT "even your best friend won't tell you" about halitosis-or is it "B. O."?-but somebody recently told us we had been publishing "too many descriptions of telescopes and not enough sauce. "All right then, we shall temporarily sidetrack 32 telescope descriptions now on hand and not yet published and serve sauce. But let's call it hash.

HERE, for one ingredient, are some 11 originally good focograms which show what kind of work amateur telescope makers can do. The first is by Harold A. Lower, 1032 Pennsylvania Street, San Diego, California, whose 12-inch Cassegrainian telescope was described last month in this department. The focogram shown in "Amateur Telescope Making," page 225, is correct as regards the distribution of lights and shadows, but the shadows are too deep. Likewise the present one does decidedly poor justice to the original.

For full article (Science Fair Idea) buy PDF copy now!

Focograms
  • Stock: In Stock
  • Model:
  • SKU: 17-04C-038
11211 Customers viewed this product
Rs.171.99

 

 

 

 

The photo/video is for illustrative purposes only.




Acceptable payment methods:


Payment MethodItem types

Credit Card / Debit Card
/ Net Banking/ Wallet
/ Phone Payment

Live Plants
Accessories
Pet Food
Aquariums (values below Rs.3500)
Components
eBooks
NEFT / IMPS / UPI/
Gpay/Paytm / etc.

Fishes
Snails
Invertebrates
Aquariums (values above Rs.3500)
Dog Kennels

National – INDIA


We ship by several different shipping methods. Please select appropriate shipping method during checkout based on your ordered item. To know what shipping method will be applicable to you, please see MMH Shopping Tutorial link.

  • Live Fishes / Small Animals / Cages / Aquariums / Products that are more than 15kgs shall be shipping by Train only. Extra charges will be levied for shipping by Air / Bus. No door delivery.
  • Live Plants shipping by Indian Speed Post or Courier. We recommend shipping by Courier as it is with FREE Live Arrival Guarantee.
  • Accessories / General Items that are less than 15Kgs; shipping is via India Post, Registered Post/parcel or Priority Post on prior request on extra charges.

    Note: Example: for small cities like Noida, Ghaziabad etc., consignment by Train/Bus will be shipped to nearest logistically accessible city like Delhi.


Overseas - INTERNATIONAL


We ship by two modes; Speed Post and Courier. Shipping rates are different based on shipping country for each product and will cost €6.50+ onwards.


Please confirm shipping price for your interested products before placing order. We DO NOT ship products like certain chemicals, live fishes, and other sensitive items overseas.

  • International Registered Post Parcel: Transit period: 20-60 working days is expected. Suitable for general accessory, liquids and electronic items less than 15kgs weight.
  • International Speed Post EMS: Transit period: 10-15 working days is expected. Suitable for general accessory and Live Plants less than 15kgs weight. (Tracking available)
  • International DHL: Transit period: 3-5 working days is expected. Suitable for general accessory and electronic items. (Tracking available)

We do not ship any tangible products to following countries: Argentina, Bangladesh, Belgium, Congo, Denmark, El Salvador, Guyana, Iran, Iraq, Kuwait, Luxembourg, Maldives, Mexico, Niger, Nigeria, Pakistan, Panama, Rwanda, Saudi Arabia, Somalia, Sri Lanka, Sweden, Tunisia, Yemen etc. (downloadable products like eBooks are allowed)

For Product Returns please see Terms & Conditions page.


 

Write a review

Note: HTML is not translated!
Bad Good