Cover art for Destroyer of Worlds

Destroyer of Worlds

9 ratings


200 Years before the Discovery of Ringworld The newly liberated humans of the Fleet of Worlds and Sigmund Ausfaller, who had been transported by the Puppeteers from Earth to the Fleet, must contend not only with the sly Puppeteers but also the threat of the Pak, a very smart and utterly ruthless species who are fleeing the exploding galactic core in an armada of ships at near light speed. The Pak are headed towards the Fleet of Worlds, having destroyed entire planets in their wake. Sigmund and his human allies are sent by the Puppeteers to reconnoiter and divert the Pak. A Pak is captured, but even a well-guarded Pak prisoner can be lethal. Sigmund and the human colonists must cope with many unpleasant surprises, between the manipulative Puppeteers, the brilliant, violent Pak and a new species called the Gw'oth who, while seeming to be allies, have own agenda.

©2009 Larry Niven and Edward M. Lerner (P)2009 Blackstone Audio, Inc.

Available on Audible
Cover art for No Calculator? No Problem!

No Calculator? No Problem!

2 ratings


No calculator? No problem! Whether a listener is prepping for a standardized test or just trying to figure out the check, mathematician Dr. Arthur Benjamin will teach listeners the fundamentals of mental addition, subtraction, multiplication, and division. From there, listeners will turn to the art of "guess-timation" for problems that don’t require an exact answer. Listeners will learn:   Tricks and techniques to arrive at answers for large problems listeners can’t do in their heads.   How to effectively memorize important digits, such as phone numbers, credit card pins, or the dreaded numerical call-in conference passcode.   Little-known math techniques, including over-subtraction and the cashier’s method.   Mastery multiplication tables through 20 and multiply a pair of 2-digit numbers.   How to think of numbers from left to right and hear the numbers without the need to visualize anything.   Tricks for adding and subtracting numbers as high as 4-digits and multiplying 2-digit numbers—without a calculator.   How to rely heavily on mental estimation and tricks for converting fractions and decimals. With Professor Benjamin’s engaging, fun-filled lessons, listeners soon find themselves amazing other people and, perhaps more important, themselves. Examples included in the lessons use real-world applications that apply to shopping, banking, tipping, cooking, gaming, gambling, and sports statistics. The skills learned in No Calculator? No Problem!: Mastering Mental Math will teach listeners the tools necessary to excel in school, personal finance, work, and life. Learn to allocate spending, manage time, and master life like a math whiz. 

©2019 Audible Originals, LLC (P)2019 Audible Originals, LLC.

Narrator: Art Benjamin
Length: 5 hrs and 46 mins
Available on Audible