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.

Our new summer Caf&eacute; menu is here just in time for the heat!&nbsp;Stop by and try them all!&nbsp;&#127850; Cookies and Cream Cheesecake Latte&#127912;Dot Cheesecake Latte

&#127861;Lychee Black Tea Latte

New Summer Cafe Menu At Caboose Commons! 

Our new summer Café menu is here just in time for the heat! Stop by and try them all! 🍪 Cookies and Cream Cheesecake Latte🎨Dot Cheesecake Latte...

Patch AM Team

George Mason

Fairfax city

Fairfax

Kings Park West

Long Branch

Mantua

Fair Oaks

Oakton

Burke Centre

Merrifield

Fair Lakes

Clyde's At Mark Center

☀️ Northern Virginia Healthcare &amp; Senior Living Professionals — You're Invited!
Looking for your next leadership opportunity? Join Sunrise Senior Living for our RelationSIPs Networking Event on Thursday, July 16, from 4:00–7:00 PM at Clyde's at Mark Center in Alexandria, VA.
We're hiring for: ✔️ Executive Directors ✔️ Director of Sales ✔️ Resident Care Directors (RN preferred) ✔️ Nurses (Both LPN &amp; RN) ✔️ Department Coordinators
Come meet our leadership team, enjoy light refreshments, network with fellow professionals, and learn about exciting career opportunities across our Northern Virginia communities. On-the-spot interviews will also be available!
If you're interested in attending, register using the QR code or the event page here:&nbsp;<a href="https://sunriseseniorliving.lpages.co/nova-relationsips-716/" rel="nofollow noopener" target="_blank">sunriseseniorliving.lpages.co/nova-relationsips-716/</a>

Local Event: Sip Into Summer At Sunrise! - Networking Event

Alexandria city

Alexandria

Sip Into Summer At Sunrise! - Networking Event

☀️ Northern Virginia Healthcare & Senior Living Professionals — You're Invited!
Looking for your next leadership opportunity?...

Fireman's Field Complex, 250 S. Nursery Ave., Purcellville, VA, 20132

The annual Purcellville Wine and Food Festival returns on Saturday, July 18, in Dillon’s Woods at the historic Fireman’s Field Complex (250 S. Nursery Avenue, Purcellville). The festival will take place from 2 to 8 p.m., inviting guests to gather with family and friends for an afternoon and evening of local wine, beer, food, live music, art, and more.
This year’s event will showcase 40 vendors, including wineries, breweries, food and snack vendors, and local exhibitors. Enjoy live music performances by the Rick Reaves Band, The Darby Brothers, and the Franklin Park Big Band. The “Arts in the Garden” section, hosted by the Purcellville Arts Council, will highlight local artists who will create works of art live on-site. Additional activities include face painting and a photo stand-in booth. 
Early bird ticket pricing is available through 5 p.m. on July 17: 
• Early bird admission (ages 17 and over): $5 (+ tax) 
• Early bird drink tickets (6 oz wine or 12 oz beer): $8.50 (+ tax) 
• Early bird drink ticket package: 4 tickets for $32 (+ tax) 
• Early bird bottle of wine purchase: $35 (+ tax), available from participating wineries (bottles must be consumed on-site)
A souvenir glass will be provided with the purchase of the first drink ticket. Save time and money by purchasing your tickets in advance. 
The popular VIP experience returns for $275 (+ tax) and includes admission for six, a reserved table for six, three bottles of local wine, six souvenir glasses, six drink tickets, early entry to the festival, special commemorative gifts, and a selection of sweets and savories for the table. 
Tickets and VIP tables are available for purchase at <a href="https://www.PurcellvilleWineAndFood.com" target="_blank" rel="nofollow noopener">www.PurcellvilleWineAndFood.com</a>. Guests are encouraged to make a weekend of it and explore local lodging and attractions. Check the Accommodations page of the festival website, as well as the Visit Loudoun website, for more information.
 The Purcellville Wine and Food Festival is hosted by Purcellville Parks and Recreation and Loudoun Brewing Company, with support from Visit Loudoun, Renewal by Andersen, Harris Teeter, Prince William Home Improvement, truHealthNow, Valley Energy, Loudoun Brewing Company, Bush Tabernacle, MotoMember, and OHM Productions. Sponsorship opportunities remain available. For more information, visit <a href="https://www.PurcellvilleWineAndFood.com" target="_blank" rel="nofollow noopener">www.PurcellvilleWineAndFood.com</a>

Local Event: Purcellville Wine and Food Festival

Loudoun County

Leesburg

Purcellville Wine and Food Festival

The annual Purcellville Wine and Food Festival returns on Saturday, July 18, in Dillon’s Woods at the historic Fireman’s Field...

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

Milken Center for Advancing the American Dream

More than a museum, the Milken Center for Advancing the American Dream invites visitors to explore what’s possible through an interactive exhibition. Just steps from the White House, the Center celebrates the people, ideas, and opportunities that fuel our nation’s spirit of progress. Through immersive gallery spaces, curated art installations, and cutting-edge technology (including holograms, films, and interactive displays), guests are encouraged to see themselves reflected in the American Dream. The exhibition highlights four pathways of opportunity—Education, Entrepreneurship, Financial Empowerment, and Health—showcasing inspiring stories of everyday dreamers, innovators, and changemakers. Open Thursday-Monday. Reserve your free ticket today and find yourself in the American Dream. 

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

HearingLife is a national hearing care company with over 600 locations nationwide. Our licensed hearing professionals deliver personalized, life‑changing hearing care using the latest state‑of‑the‑art technology. Each solution is individually fitted and fine‑tuned for patient's needs. HearingLife is committed to supporting each patient throughout their hearing journey with comprehensive ongoing care and aftercare. Schedule your free hearing test at our Fairfax location today.

HearingLife is a national hearing care company with over 600 locations nationwide. Our licensed hearing professionals deliver personalized, life...

Fast & Reliable Local Junk Removal & Demolition!

DMV Go Junk

DMV Go Junk is your trusted, locally owned and operated junk removal and light demolition specialist serving Herndon and the surrounding Northern Virginia communities. We handle everything from single-item pickups to full property cleanouts, shed demolition, deck removals, and commercial space clearing. Our team is dedicated to providing fast, professional, and eco-friendly services at fair rates. Save time and stress—let us do the heavy lifting for you! Fully licensed and insured.

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

At Medi-Weightloss we specialize in Medication and Nutrition. Doctors, nurses, and healthcare professionals provide safe, caring, and trusted weight loss guidance. Providers conduct a comprehensive medical evaluation that includes a thorough medical exam, bloodwork, EKG, and body composition analysis. Our GLP-1 program is tailored to your body, lifestyle, and goals. We provide what telemedicine can’t: face-to-face accountability, immediate clinical support, and body composition tracking with medical-grade technology. We’re with you every step of the way. Simple &amp; affordable pricing. We’ve made it easier than ever to start, and stay, on your weight loss journey. Our all-inclusive self-pay model gives you the tools, support, and medical expertise you need, without the guesswork or surprise costs. We also accept most major insurances. Medi-Weightloss® Alexandria provides the following weight loss services and programs: · Medically-supervised, clinically-proven weight loss program · Weight loss medication evaluation and management · Weight management for people with Type 2 Diabetes · Injectable nutrition therapy · Medically-supervised weight loss for youth ages 12-18 · Bioidentical Hormone Replacement Therapy (BHRT) - Balance your hormones to reclaim your health. Trusted by Doctors. Loved by Patients. Doctor Recommended: 17,000+ Doctor Referrals. Physicians trust Medi-Weightloss providers to deliver expert, evidence-based care to their patients. Discover why doctors and patients alike recommend our comprehensive, physician-supervised program.

Old Town Alexandria

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

Liz Correa Realtor 

As a local realtor with Keller Williams Realty and long-time resident, I understand how daunting it is when selling or buying a home. I have been in your shoes many times and that's why I decided to become a realtor. I am committed to helping buyers and sellers navigate the real estate market and get the home value they deserve. It's about making wise decisions that will save you thousands. I have been in real estate for years, buying, selling, leasing and investing. The market is shifting and rates have come down. Of course, once the rates continue to decrease, home prices will increase. If you're thinking of making a move the time is now. Remember, you can always renegotiate the rates. At KW, I work with a team of experts and together we can provide the tools you need to handle any transaction and achieve your real estate goals. Whether you’re a first-time homebuyer, investor, downsizer, or seller, I will be with you from financing to closing -- every step of the way. Contact me for a no pressure conversation. 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 local realtor with Keller Williams Realty and long-time resident, I understand how daunting it is when selling or buying a home. I have been...

Novara Recovery Center: Fairfax’s Personalized Rehab Care

Novara Recovery Center

Novara Recovery Center provides evidence-based addiction treatment in Fairfax, Virginia, specializing in PHP, IOP, and evening programs for individuals and families. We welcome clients from Fairfax County, Vienna, Oakton, Tysons, and the greater Northern Virginia region. Our multidisciplinary team includes licensed clinicians and behavioral health experts who offer care aligned with Virginia DBHDS and SAMHSA standards. Services include trauma-informed therapy, co-occurring disorder treatment, and ongoing recovery support. Recognized in regional publications and supported by a strong community referral network, Novara provides accessible, ethical, and results-driven care with both in-person and telehealth options available. Contact us for a confidential evaluation and discover if Novara’s approach is right for you.

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|Featured Classified|Announcement|3h

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

Fairfax City, VA|Local Classified|Announcement|Jul 1

New Summer Cafe Menu At Caboose Commons!

Sip Into Summer At Sunrise! - Networking Event

Purcellville Wine and Food Festival

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

Milken Center for Advancing the American Dream

HearingLife

DMV Go Junk

Inova

Green Hedges School

Medi-Weightloss Alexandria

Liz Correa Realtor

Novara Recovery Center

Neutral Ground Counseling Group

Ground Up Trade and Talent Solutions (GUTTS)