Check out my books on light-sails.
 Light-sail spacecraft are somewhere in the exotic between chemical rockets and concepts like warp-drives and wormhole shortcuts through space-time.
 Oddly enough, light-sails of the kinds I have conceptually develop experience negative drive. The faster they go the greater is their ship-frame acceleration perhaps infinite vectors and Lorentz factors.
 To see how, consider browsing my related intellectual property.
 Some of my light-sail books are about 2 million pages in length. So these books are all only available as down-loadable pdfs.

THE MONOLITHIC CHRISTMAS TREE LIGHT-SAIL.
 by James M Essig
 <a href="https://www.xlibris.com/en/bookstore/bookdetails/804023-the-monolithic-christmas-tree-light-sail" rel="noopener nofollow" target="_blank">https://www.xlibris.com/en/bookstore/bookdetails/804023-the-monolithic-christmas-tree-light-sail</a>
 The Monolithic Christmas Tree Light-Sail Expanded Edition
<a href="https://www.xlibris.com/en/bookstore/bookdetails/818931-the-monolithic-christmas-tree-light-sail" rel="noopener nofollow" target="_blank">https://www.xlibris.com/en/bookstore/bookdetails/818931-the-monolithic-christmas-tree-light-sail</a>
 by James M Essig
 The Monolithic Christmas Tree Light-Sail. Volume 2.
by James Essig
<a href="https://www.xlibris.com/en/bookstore/bookdetails/823685-the-monolithic-christmas-tree-light-sail" rel="noopener nofollow" target="_blank">https://www.xlibris.com/en/bookstore/bookdetails/823685-the-monolithic-christmas-tree-light-sail</a>
 The Monolithic Christmas Tree Light-Sail. Volume 3.
 by James Essig
 <a href="https://www.xlibris.com/en/bookstore/bookdetails/834923-the-monolithic-christmas-tree-light-sail-volume-3" rel="noopener nofollow" target="_blank">https://www.xlibris.com/en/bookstore/bookdetails/834923-the-monolithic-christmas-tree-light-sail-volume-3</a>
 The Monolithic Christmas Tree Light Sail. Volume 4
 by James Essig
 <a href="https://www.xlibris.com/en/bookstore/bookdetails/846134-the-monolithic-christmas-tree-light-sail-volume-4" rel="noopener nofollow" target="_blank">https://www.xlibris.com/en/bookstore/bookdetails/846134-the-monolithic-christmas-tree-light-sail-volume-4</a>
 The Monolithic Christmas Tree Light-Sail. Volume 5.
 by James Essig
 <a href="https://www.xlibris.com/en/bookstore/bookdetails/861899-the-monolithic-christmas-tree-light-sail-volume-5" rel="noopener nofollow" target="_blank">https://www.xlibris.com/en/bookstore/bookdetails/861899-the-monolithic-christmas-tree-light-sail-volume-5</a>
 The Monolithic Christmas Tree Light-Sail. Volume 6.
 by James Essig
 <a href="https://www.xlibris.com/en/bookstore/bookdetails/861936-the-monolithic-christmas-tree-light-sail-volume-6" rel="noopener nofollow" target="_blank">https://www.xlibris.com/en/bookstore/bookdetails/861936-the-monolithic-christmas-tree-light-sail-volume-6</a>
 The Monolithic Christmas Tree Light-Sail. Volume 7.
 by James Essig
 <a href="https://www.xlibris.com/en/bookstore/bookdetails/867773-the-monolithic-christmas-tree-light-sail-volume-7" rel="noopener nofollow" target="_blank">https://www.xlibris.com/en/bookstore/bookdetails/867773-the-monolithic-christmas-tree-light-sail-volume-7</a>

Fairfax County

Michael O'Connell

Washington Metropolitan Area

Fairfax City

Virginia

My light-sail starship books. I am a GMU grad...

My light-sail starship books. I am a GMU grad student.

Patch AM Team

George Mason

Fairfax city

Fairfax

Kings Park West

Long Branch

Mantua

Fair Oaks

Oakton

Burke Centre

Merrifield

Fair Lakes

The best place to celebrate America's 250th birthday!

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More than a museum, the Milken Center for Advancing the American Dream invites visitors to explore what’s possible through an interactive...

HearingLife is now open in the Fairfax area!

HearingLife

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Fast & Reliable Local Junk Removal & Demolition!

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Herndon

DMV Go Junk is your trusted, locally owned and operated junk removal and light demolition specialist serving Herndon and the surrounding Northern...

Leading nonprofit healthcare provider in Northern Virginia

Inova

We are Inova, Northern Virginia and the Washington, DC metropolitan area's leading nonprofit healthcare provider. With expertise and compassion, we partner with our patients to help them stay healthy. We treat illness, heal injury and look at a patient’s whole health to help them flourish. Through our expansive network of hospitals, primary and specialty care practices, emergency and urgent care centers, and outpatient services, Inova provides care for more than one million unique patients every year. Total patient visits exceed four million annually, demonstrating our ability to deliver the best clinical care and ensuring a seamless experience for all who rely on us for their healthcare needs. Consistently ranked and recognized as a national healthcare leader in safety, quality and patient experience, Inova's world-class care is made possible by the strength and breadth of our network, our 26,000 team members, our technology and our innovation. In 2025, Inova was named the Health System of the Year by Press Ganey, a national leader in healthcare experience, recognizing our excellence in patient care, team member engagement, and commitment to continuous improvement. Inova is home to Northern Virginia's only Level 1 Trauma Center and Level 4 Neonatal Intensive Care Unit and provides high-quality healthcare to each person in every community we are privileged to serve – regardless of ability to pay – every day of their life.

We are Inova, Northern Virginia and the Washington, DC metropolitan area's leading nonprofit healthcare provider. With expertise and compassion, we...

Green Hedges School, Where Every Child Is Known and Inspired

Green Hedges School

Green Hedges School is an independent Montessori Ages 2-5 and Preparatory Grades 1-8 school located in Vienna, Virginia. Rooted in a deep respect for each child’s individuality, Green Hedges offers a thoughtfully prepared learning environment where curiosity is nurtured, confidence is built, and no child slips through the cracks. With small class sizes and a close-knit community, students are truly known by their teachers and supported academically, socially, and emotionally. The school emphasizes hands-on, experiential learning that encourages independence, critical thinking, collaboration, and a lifelong love of learning. From creative arts and outdoor exploration to science, technology, and project-based academics, students are invited to wonder, explore, and grow. Green Hedges values strong partnerships with families and believes education is most powerful when school and home work closely together. Guided by a mission of respect, responsibility, and joyful discovery, Green Hedges prepares students not only for academic success, but for meaningful, engaged lives. Join us and watch your child Grow at Green Hedges School today!

Michelle Witte

Vienna

Green Hedges School is an independent Montessori Ages 2-5 and Preparatory Grades 1-8 school located in Vienna, Virginia. Rooted in a deep respect...

Invest Smarter In Your Health - Your Results Matter at Medi

Medi-Weightloss Alexandria

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At Medi-Weightloss we specialize in Medication and Nutrition. Doctors, nurses, and healthcare professionals provide safe, caring, and trusted...

Want

The Best Deals in Fairfax Are Happening Now.

Liz Correa Realtor 

As a dedicated real estate professional, I specialize in helping investors, buyers, sellers, and luxury home clients achieve their real estate goals with confidence. Whether you’re purchasing your first home, expanding your investment portfolio, selling for maximum value, or searching for a luxury property, I provide expert guidance, strategic marketing insights, and personalized service every step of the way. I understand that every client has unique goals, and I take pride in creating customized strategies that deliver results. Contact me for a no pressure consultation. And sellers, do not hesitate to call for a free home value report. If you decide to sell, we offer a free home warranty for 180 days to cover any unexpected repairs. Feel free to follow me on Instagram: lizzcorrea_vahomes for real estate tips and more.

As a dedicated real estate professional, I specialize in helping investors, buyers, sellers, and luxury home clients achieve their real estate...

Novara Recovery Center: Fairfax’s Personalized Rehab Care

Novara Recovery Center

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Novara Recovery Center provides evidence-based addiction treatment in Fairfax, Virginia, specializing in PHP, IOP, and evening programs for...

Neutral Ground Counseling Group

At Neutral Ground Counseling Group in Fairfax City, we provide high-quality, affordable mental health services for individuals, couples, teens, families, and groups. With multiple fee options starting at $50 per session and in-network coverage with TRICARE East, Aetna, Anthem BCBS, and Carelon, we make therapy accessible without compromising quality. Our clinicians support clients facing anxiety, depression, trauma, PTSD, life transitions, neurodivergence (including ADHD and Autism Spectrum concerns), relationship difficulties, identity exploration, substance-use challenges, and other mental health struggles. We are deeply committed to serving military service members, veterans, and their families, offering care that honors the unique stressors of deployment, reintegration, relocation, and family adjustment. We also specialize in LGBTQIA2+ affirming therapy, providing a safe space for gender-diverse individuals and those navigating identity, transition, or relationship concerns. Our practice offers individual and couples therapy as well as group programs, including domestic-violence recovery groups and mindfulness-based, acceptance-focused programs such as EMAP. Clients can access therapy in person in Fairfax or online throughout Virginia, Washington, DC, and Colorado. Our team includes licensed clinicians and Residents-in-Counseling under expert supervision, allowing us to offer a wide range of specialties and price points to meet diverse needs. Neutral Ground Counseling Group is a welcoming and inclusive practice where your story is heard, your strengths are honored, and your path forward is supported. Reach out today—affordable, compassionate care is available.

At Neutral Ground Counseling Group in Fairfax City, we provide high-quality, affordable mental health services for individuals, couples, teens,...

Join GUTTS Plumbing and HVAC Training and Job Placement 

Ground Up Trade and Talent Solutions (GUTTS)

The GUTTS Program includes Plumbing and HVACR Apprentice Courses that provide individuals with classroom and lab training segueing into jobs and apprenticeships. After completing the course, GUTTS provides students with PHCC (Plumbing Heating Coolant Contractors) Certificate and GUTTS Certification of 72 Hours toward Accredited Apprenticeship and a tool bag with all the hand tools needed start on their first day as an apprentice. GUTTS is licensed by the Virginia Department of Professional and Occupational Regulation (DPOR) as a continuing education provider for the PHCC Plumbing Apprentice course and PHCC HVACR Apprentice course. GUTTS is located at 11170 Main St., Suite 200, Fairfax, VA 22030.

 The GUTTS Program includes Plumbing and HVACR Apprentice Courses that provide individuals with classroom and lab training segueing into jobs and...

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Fairfax City, VA|Local Classified|Announcement|Jul 22